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California Environmental Health Tracking Program

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Last Edited: 6/5/2014

Climate Change Data: Heat-Related Illness Summary Tables

Below are summary tables (aggregated years) for heat-related illness in California.  See the Heat-Related Data Query for more data on emergency department visits and hospitalizations due to heat.  See Heat-Related Deaths Summary Tables for data on deaths due to heat.

(If a county is missing, there were less than 12 cases)
 
County Age-adjusted rate (per 100,000) Lower 95% Limit Upper 95% Limit Number of cases
California 1.53 1.49 1.57 6,837
Alameda 1.48 1.31 1.67 267
Amador 2.18 1.07 3.97 12
Butte 3.24 2.62 3.97 100
Contra Costa 1.55 1.35 1.78 204
El Dorado 1.32 0.88 1.90 30
Fresno 2.86 2.54 3.21 291
Imperial 15.48 13.73 17.40 287
Kern 2.78 2.43 3.17 237
Kings 4.86 3.74 6.19 68
Lake 2.28 1.39 3.55 22
Los Angeles 1.16 1.10 1.22 1,336
Madera 2.77 2.03 3.68 47
Marin 1.04 0.74 1.43 40
Mendocino 1.77 1.12 2.67 24
Merced 2.49 1.92 3.18 65
Monterey 0.71 0.50 1.00 35
Napa 1.59 1.09 2.26 33
Nevada 1.69 1.11 2.50 28
Orange 0.77 0.69 0.87 283
Placer 1.06 0.78 1.41 48
Riverside 3.12 2.90 3.35 754
Sacramento 1.33 1.16 1.51 228
San Bernardino 2.94 2.71 3.19 622
San Diego 0.87 0.78 0.97 329
San Francisco 0.75 0.60 0.93 86
San Joaquin 1.92 1.62 2.26 147
San Luis Obispo 0.83 0.57 1.17 34
San Mateo 1.13 0.93 1.37 111
Santa Barbara 0.66 0.46 0.91 37
Santa Clara 1.39 1.23 1.56 279
Santa Cruz 0.74 0.46 1.12 23
Shasta 2.92 2.26 3.70 72
Solano 1.12 0.84 1.46 54
Sonoma 1.31 1.05 1.61 90
Stanislaus 2.09 1.74 2.50 123
Sutter 2.35 1.55 3.42 27
Tehama 2.32 1.38 3.65 19
Tulare 2.91 2.44 3.46 133
Tuolumne 2.62 1.59 4.08 22
Ventura 0.66 0.51 0.84 66
Yolo 1.12 0.71 1.67 24
Yuba 3.59 2.37 5.21 28

Notes About the Data

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 Table 2. Heat-related hospitalizations by race/ethnicity and county, 2000-2012
(If a county or race/ethnicity is missing, there were less than 12 cases)

County Race/ethnicity Age-adjusted       rate (per 100,000) Lower 95% Limit Upper 95% Limit Number of cases
California Black, Non-Hispanic 2.17 1.99 2.36 555
Asian/Pacific Islander, Non-Hispanic 0.70 0.62 0.77 350
Hispanic/Latino 1.51 1.43 1.60 1,543
White,Non-Hispanic 1.70 1.65 1.75 4,192
Other 2.75 2.35 3.20 197
Alameda Black, Non-Hispanic 2.35 1.76 3.06 55
Asian/Pacific Islander, Non-Hispanic 0.92 0.63 1.30 33
Hispanic/Latino 1.13 0.68 1.75 22
White,Non-Hispanic 1.67 1.40 1.97 148
Amador White,Non-Hispanic 2.72 1.26 5.12 12
Butte White,Non-Hispanic 3.25 2.57 4.06 86
Contra Costa Black, Non-Hispanic 2.25 1.40 3.40 23
Asian/Pacific Islander, Non-Hispanic 1.17 0.65 1.91 16
Hispanic/Latino 0.84 0.41 1.48 13
White,Non-Hispanic 1.62 1.36 1.92 143
El Dorado White,Non-Hispanic 1.50 0.98 2.19 29
Fresno Black, Non-Hispanic 5.22 3.30 7.81 25
Asian/Pacific Islander, Non-Hispanic 1.88 1.01 3.14 14
Hispanic/Latino 3.18 2.56 3.90 112
White,Non-Hispanic 2.79 2.34 3.32 140
Imperial Black, Non-Hispanic 41.17 23.87 66.08 20
Hispanic/Latino 13.39 11.38 15.64 168
White,Non-Hispanic 21.84 17.51 26.99 96
Kern Black, Non-Hispanic 6.93 4.45 10.22 28
Hispanic/Latino 2.24 1.64 2.98 61
White,Non-Hispanic 2.94 2.47 3.48 140
Kings Hispanic/Latino 6.40 4.06 9.49 29
White,Non-Hispanic 4.20 2.87 5.95 32
Lake White,Non-Hispanic 2.54 1.44 4.16 19
Los Angeles Black, Non-Hispanic 1.46 1.24 1.71 158
Asian/Pacific Islander, Non-Hispanic 0.58 0.47 0.71 94
Hispanic/Latino 1.00 0.88 1.12 345
White,Non-Hispanic 1.44 1.33 1.56 686
Other 3.55 2.61 4.69 53
Madera Hispanic/Latino 3.71 2.22 5.81 25
White,Non-Hispanic 1.98 1.16 3.21 19
Marin White,Non-Hispanic 1.18 0.81 1.68 37
Mendocino White,Non-Hispanic 2.07 1.28 3.23 23
Merced Hispanic/Latino 2.46 1.52 3.74 24
White,Non-Hispanic 2.69 1.87 3.76 36
Monterey Hispanic/Latino 0.81 0.41 1.43 15
White,Non-Hispanic 0.73 0.41 1.20 17
Napa White,Non-Hispanic 1.55 0.98 2.39 27
Nevada White,Non-Hispanic 1.63 1.03 2.49 25
Orange Asian/Pacific Islander, Non-Hispanic 0.60 0.39 0.87 29
Hispanic/Latino 0.73 0.51 1.00 54
White,Non-Hispanic 0.88 0.75 1.02 187
Placer White,Non-Hispanic 1.09 0.78 1.49 42
Riverside Black, Non-Hispanic 3.90 2.83 5.21 50
Asian/Pacific Islander, Non-Hispanic 1.26 0.68 2.13 15
Hispanic/Latino 2.84 2.39 3.36 187
White,Non-Hispanic 3.48 3.16 3.82 483
Other 4.90 2.69 8.04 19
Sacramento Black, Non-Hispanic 2.07 1.37 2.98 31
Asian/Pacific Islander, Non-Hispanic 0.54 0.27 0.94 12
Hispanic/Latino 0.97 0.56 1.55 21
White,Non-Hispanic 1.45 1.23 1.70 158
San Bernardino Black, Non-Hispanic 3.26 2.37 4.35 53
Asian/Pacific Islander, Non-Hispanic 0.99 0.49 1.76 12
Hispanic/Latino 2.04 1.67 2.47 140
White,Non-Hispanic 3.73 3.37 4.12 398
Other 5.47 3.01 8.94 19
San Diego Black, Non-Hispanic 1.42 0.91 2.12 26
Asian/Pacific Islander, Non-Hispanic 0.52 0.30 0.84 18
Hispanic/Latino 0.84 0.64 1.09 69
White,Non-Hispanic 0.90 0.78 1.04 207
San Francisco Black, Non-Hispanic 1.52 0.81 2.66 13
Asian/Pacific Islander, Non-Hispanic 0.43 0.26 0.69 19
White,Non-Hispanic 0.88 0.63 1.20 45
San Joaquin Black, Non-Hispanic 3.93 2.14 6.49 15
Hispanic/Latino 2.04 1.35 2.93 36
White,Non-Hispanic 2.08 1.65 2.59 85
San Luis Obispo White,Non-Hispanic 0.89 0.60 1.29 31
San Mateo Asian/Pacific Islander, Non-Hispanic 0.65 0.33 1.14 12
White,Non-Hispanic 1.33 1.04 1.68 81
Santa Barbara White,Non-Hispanic 0.84 0.53 1.25 28
Santa Clara Asian/Pacific Islander, Non-Hispanic 0.73 0.50 1.02 34
Hispanic/Latino 1.28 0.90 1.77 42
White,Non-Hispanic 1.61 1.38 1.87 179
Other 7.49 4.13 12.13 16
Santa Cruz White,Non-Hispanic 0.86 0.50 1.38 19
Shasta White,Non-Hispanic 3.09 2.36 3.97 67
Solano White,Non-Hispanic 1.26 0.86 1.77 34
Sonoma White,Non-Hispanic 1.36 1.06 1.72 78
Stanislaus Hispanic/Latino 1.91 1.13 2.98 24
White,Non-Hispanic 2.44 1.96 3.01 92
Sutter White,Non-Hispanic 2.61 1.56 4.14 19
Tehama White,Non-Hispanic 2.48 1.40 4.07 17
Tulare Hispanic/Latino 3.01 2.11 4.11 49
White,Non-Hispanic 3.08 2.38 3.93 70
Tuolumne White,Non-Hispanic 2.65 1.51 4.34 19
Ventura Hispanic/Latino 0.69 0.39 1.12 18
White,Non-Hispanic 0.59 0.42 0.82 39
Yolo White,Non-Hispanic 1.28 0.75 2.04 18
Yuba White,Non-Hispanic 4.48 2.88 6.64 25

 

Notes About the Data

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(If a county or gender is missing, there were less than 12 cases)
  
County Gender Age-adjusted       rate (per 100,000) Lower 95% Limit Upper 95% Limit Number of cases
California Female 0.97 0.93 1.01 2,372
Male 2.15 2.09 2.22 4,465
Alameda Female 1.30 1.09 1.55 136
Male 1.71 1.42 2.03 131
Butte Female 1.82 1.22 2.63 32
Male 4.75 3.67 6.06 68
Contra Costa Female 1.11 0.88 1.38 85
Male 2.06 1.70 2.48 119
El Dorado Male 1.88 1.13 2.93 20
Fresno Female 1.38 1.08 1.74 74
Male 4.50 3.91 5.16 217
Imperial Female 5.37 3.97 7.10 49
Male 26.02 22.75 29.61 238
Kern Female 1.56 1.21 1.98 67
Male 3.98 3.38 4.65 170
Kings Female 3.89 2.56 5.66 27
Male 5.80 4.03 8.02 41
Lake Male 3.81 2.15 6.24 17
Los Angeles Female 0.75 0.68 0.82 480
Male 1.63 1.52 1.75 856
Madera Female 1.68 0.94 2.77 15
Male 4.06 2.75 5.75 32
Marin Female 0.78 0.43 1.32 16
Male 1.45 0.92 2.17 24
Mendocino Male 2.32 1.28 3.90 15
Merced Female 1.24 0.72 1.98 17
Male 3.93 2.86 5.25 48
Monterey Female 0.44 0.23 0.78 12
Male 0.97 0.61 1.46 23
Napa Male 2.54 1.61 3.82 23
Nevada Female 1.67 0.91 2.89 16
Male 1.53 0.78 2.76 12
Orange Female 0.54 0.44 0.65 107
Male 1.03 0.88 1.20 176
Placer Female 0.51 0.28 0.88 14
Male 1.65 1.14 2.31 34
Riverside Female 1.77 1.55 2.02 230
Male 4.55 4.17 4.97 524
Sacramento Female 0.83 0.65 1.03 78
Male 1.95 1.65 2.30 150
San Bernardino Female 1.73 1.50 2.00 193
Male 4.34 3.92 4.80 429
San Diego Female 0.59 0.49 0.71 118
Male 1.16 1.00 1.33 211
San Francisco Female 0.68 0.49 0.92 44
Male 0.81 0.58 1.11 42
San Joaquin Female 1.11 0.81 1.48 47
Male 2.88 2.33 3.51 100
San Luis Obispo Female 0.56 0.29 0.99 13
Male 1.11 0.68 1.72 21
San Mateo Female 0.88 0.65 1.16 51
Male 1.43 1.09 1.85 60
Santa Barbara Female 0.43 0.22 0.75 12
Male 0.95 0.62 1.41 25
Santa Clara Female 1.24 1.04 1.47 141
Male 1.53 1.28 1.82 138
Santa Cruz Male 1.29 0.75 2.07 18
Shasta Female 1.75 1.14 2.58 27
Male 4.20 3.03 5.65 45
Solano Female 0.88 0.56 1.33 23
Male 1.36 0.91 1.94 31
Sonoma Female 1.04 0.74 1.42 44
Male 1.55 1.13 2.07 46
Stanislaus Female 1.22 0.87 1.67 40
Male 3.05 2.42 3.80 83
Sutter Male 3.52 2.11 5.51 19
Tehama Male 3.42 1.80 5.88 13
Tulare Female 1.42 0.99 1.97 35
Male 4.44 3.58 5.43 98
Tuolumne Male 3.53 1.93 5.96 15
Ventura Female 0.41 0.26 0.63 23
Male 0.92 0.66 1.24 43
Yolo Male 1.74 1.01 2.78 18
Yuba Male 4.80 2.83 7.59 19

 

Notes About the Data 

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(If a county or age group is missing, there were less than 12 cases)
 
County Ages Age-adjusted rate (per 100,000) Lower 95% Limit Upper 95% Limit Number of cases
California <5 0.31 0.25 0.37 102
5-17 0.25 0.22 0.28 223
18-34 0.63 0.59 0.68 740
35-64 1.45 1.39 1.50 2,659
65+ 6.00 5.79 6.22 3,113
Alameda 18-34 0.33 0.19 0.53 16
35-64 0.95 0.74 1.19 75
65+ 7.81 6.66 9.10 166
Butte 18-34 1.71 0.85 3.05 12
35-64 3.99 2.86 5.42 43
65+ 9.11 6.51 12.41 41
Contra Costa 18-34 0.47 0.25 0.80 13
35-64 1.06 0.81 1.37 61
65+ 7.78 6.46 9.29 123
El Dorado 35-64 1.34 0.70 2.32 13
65+ 4.45 2.36 7.61 13
Fresno 5-17 0.54 0.29 0.90 14
18-34 0.93 0.61 1.35 27
35-64 3.34 2.80 3.96 133
65+ 9.44 7.74 11.41 108
Imperial 18-34 6.49 4.46 9.11 33
35-64 20.71 17.57 24.24 155
65+ 46.04 37.13 56.42 94
Kern 18-34 1.47 1.03 2.03 36
35-64 3.18 2.62 3.82 113
65+ 9.33 7.42 11.58 83
Kings 35-64 4.00 2.61 5.87 26
65+ 23.10 15.88 32.51 33
Lake 35-64 2.87 1.43 5.20 12
Los Angeles <5 0.22 0.14 0.35 20
5-17 0.18 0.13 0.24 44
18-34 0.39 0.32 0.46 129
35-64 0.98 0.89 1.07 475
65+ 5.07 4.69 5.47 668
Madera 35-64 3.40 2.15 5.12 23
65+ 6.96 3.70 11.88 13
Marin 65+ 5.30 3.47 7.74 27
Merced 35-64 2.74 1.83 3.94 29
65+ 9.31 6.13 13.56 27
Monterey 35-64 0.79 0.44 1.30 15
65+ 2.35 1.25 4.02 13
Napa 65+ 8.49 5.40 12.74 24
Nevada 65+ 8.86 5.41 13.70 20
Orange 5-17 0.19 0.10 0.32 14
18-34 0.44 0.31 0.59 41
35-64 0.59 0.48 0.73 91
65+ 3.10 2.59 3.68 130
Placer 35-64 0.95 0.55 1.53 17
Placer 65+ 4.21 2.72 6.22 25
Riverside <5 0.88 0.51 1.41 17
5-17 0.56 0.38 0.79 31
18-34 1.49 1.19 1.84 86
35-64 3.31 2.95 3.70 309
65+ 10.58 9.43 11.83 311
Sacramento 18-34 0.60 0.39 0.88 26
35-64 1.51 1.23 1.83 105
65+ 4.47 3.59 5.50 89
San Bernardino 5-17 0.59 0.41 0.82 34
18-34 1.15 0.90 1.45 71
35-64 3.14 2.79 3.53 289
65+ 10.57 9.23 12.06 223
San Diego 5-17 0.21 0.12 0.35 15
18-34 0.59 0.45 0.76 62
35-64 0.84 0.70 1.00 124
65+ 2.80 2.33 3.34 123
San Francisco 35-64 0.52 0.33 0.79 23
65+ 3.88 2.93 5.04 56
San Joaquin 18-34 0.60 0.31 1.04 12
35-64 1.80 1.36 2.33 56
65+ 7.67 5.94 9.75 67
San Luis Obispo 65+ 3.81 2.32 5.91 20
San Mateo 35-64 0.56 0.35 0.84 23
65+ 6.31 4.97 7.89 77
Santa Barbara 35-64 0.63 0.34 1.09 13
65+ 1.62 0.86 2.80 13
Santa Clara 18-34 0.28 0.16 0.46 16
35-64 0.87 0.69 1.08 79
65+ 7.57 6.49 8.77 177
Shasta 35-64 3.68 2.51 5.19 34
65+ 7.83 5.24 11.26 29
Solano 35-64 0.77 0.44 1.23 17
65+ 5.17 3.43 7.47 28
Sonoma 35-64 0.73 0.45 1.13 21
65+ 6.27 4.72 8.18 56
Stanislaus 18-34 0.90 0.49 1.50 14
35-64 2.37 1.79 3.09 56
65+ 7.26 5.37 9.60 49
Sutter 65+ 8.49 4.38 14.83 12
Tulare 18-34 1.25 0.71 2.03 16
35-64 3.17 2.40 4.11 57
65+ 10.21 7.62 13.39 52
Tuolumne 35-64 4.01 1.98 7.16 12
Ventura 35-64 0.77 0.53 1.09 32
65+ 2.26 1.47 3.31 26
Yolo 35-64 1.57 0.83 2.69 13
Yuba 35-64 3.73 1.92 6.54 12

 

Notes About the Data

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Table 5. Heat-related emergency department visits by county, 2005-2012
(If a county is missing, there were less than 12 cases)
 

 

County Age-adjusted rate (per 100,000) Lower 95% Limit Upper 95% Limit Number of cases
California 11.18 11.06 11.30 32,963
Alameda 7.06 6.58 7.56 832
Amador 27.11 21.07 34.28 79
Butte 20.01 17.93 22.25 366
Calaveras 30.72 24.64 37.78 104
Colusa 39.59 30.39 50.68 64
Contra Costa 11.18 10.47 11.94 923
Del Norte 6.19 3.38 10.41 14
El Dorado 14.72 12.70 16.95 205
Fresno 19.79 18.75 20.87 1,405
Glenn 26.64 20.15 34.53 58
Humboldt 5.77 4.44 7.39 66
Imperial 83.27 78.35 88.43 1,085
Inyo 15.80 9.76 24.09 23
Kern 24.87 23.63 26.15 1,577
Kings 28.41 25.36 31.73 334
Lake 20.76 16.76 25.41 103
Lassen 17.62 12.98 23.41 50
Los Angeles 7.02 6.84 7.21 5,449
Madera 26.70 23.79 29.87 312
Marin 6.22 5.13 7.47 125
Mariposa 30.72 21.53 42.37 41
Mendocino 27.68 23.80 32.00 192
Merced 21.18 19.13 23.39 405
Modoc 21.09 11.68 34.95 16
Monterey 6.34 5.51 7.27 211
Napa 13.74 11.61 16.15 152
Nevada 15.45 12.63 18.70 118
Orange 5.48 5.19 5.79 1,310
Placer 16.14 14.64 17.75 436
Plumas 26.35 18.22 36.74 41
Riverside 22.08 21.37 22.81 3,672
Sacramento 14.24 13.54 14.96 1,592
San Benito 8.30 5.82 11.50 37
San Bernardino 18.57 17.88 19.27 2,887
San Diego 7.09 6.76 7.43 1,744
San Francisco 3.07 2.65 3.54 212
San Joaquin 16.77 15.67 17.92 885
San Luis Obispo 10.89 9.52 12.40 244
San Mateo 4.14 3.63 4.71 242
Santa Barbara 6.14 5.32 7.04 213
Santa Clara 5.78 5.38 6.20 790
Santa Cruz 5.35 4.37 6.47 111
Shasta 31.48 28.48 34.70 429
Siskiyou 27.84 22.20 34.44 93
Solano 10.66 9.56 11.85 348
Sonoma 11.67 10.61 12.81 461
Stanislaus 21.57 20.14 23.07 864
Sutter 15.94 13.17 19.13 117
Tehama 41.87 36.23 48.13 207
Trinity 33.15 21.84 47.95 30
Tulare 22.71 21.08 24.44 741
Tuolumne 30.37 25.11 36.37 129
Ventura 6.71 6.09 7.38 434
Yolo 16.93 14.86 19.21 255
Yuba 22.70 18.83 27.13 124

Notes About the Data

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Table 6. Heat-related emergency department visits by race/ethnicity and county, 2005-2012

(If a county or race/ethnicity is missing, there were less than 12 cases)

 

County Race/ethnicity Age-adjusted       rate (per 100,000) Lower 95% Limit Upper 95% Limit Number of cases
California Black, Non-Hispanic 15.38 14.80 15.98 2,729
Asian/Pacific Islander, Non-Hispanic 2.80 2.63 2.98 1,017
Hispanic/Latino 9.84 9.62 10.06 9,537
White,Non-Hispanic 13.73 13.52 13.94 17,485
Other 32.72 31.23 34.26 2,195
Alameda Black, Non-Hispanic 10.39 8.82 12.17 159
Asian/Pacific Islander, Non-Hispanic 2.65 2.07 3.33 73
Hispanic/Latino 5.45 4.35 6.72 109
White,Non-Hispanic 9.41 8.49 10.41 425
Other 19.02 14.12 25.02 66
Amador White,Non-Hispanic 33.32 25.36 42.88 73
Butte Hispanic/Latino 9.17 5.39 14.76 21
White,Non-Hispanic 22.99 20.41 25.81 322
Other 24.33 13.36 40.55 16
Calaveras Hispanic/Latino 41.68 21.12 73.29 12
White,Non-Hispanic 30.23 23.54 38.15 85
Colusa Hispanic/Latino 40.12 25.76 59.96 31
White,Non-Hispanic 44.18 29.19 64.01 33
Contra Costa Black, Non-Hispanic 16.96 13.97 20.39 119
Asian/Pacific Islander, Non-Hispanic 3.37 2.29 4.75 33
Hispanic/Latino 7.81 6.37 9.48 131
White,Non-Hispanic 12.64 11.56 13.80 555
Other 42.30 32.38 54.12 85
Del Norte White,Non-Hispanic 9.14 4.66 15.98 12
El Dorado White,Non-Hispanic 16.08 13.72 18.73 183
Fresno Black, Non-Hispanic 25.87 20.58 32.12 89
Asian/Pacific Islander, Non-Hispanic 6.61 4.61 9.15 38
Hispanic/Latino 21.00 19.27 22.85 663
White,Non-Hispanic 22.30 20.45 24.28 571
Other 29.38 20.82 40.30 44
Glenn Hispanic/Latino 24.38 14.12 40.59 18
White,Non-Hispanic 31.65 22.15 43.73 40
Humboldt White,Non-Hispanic 6.57 4.95 8.56 59
Imperial Black, Non-Hispanic 104.88 72.14 148.38 40
Hispanic/Latino 76.10 70.63 81.89 754
White,Non-Hispanic 121.24 106.13 137.88 260
Other 145.60 94.34 214.14 26
Inyo White,Non-Hispanic 13.97 6.98 24.86 14
Kern Black, Non-Hispanic 44.40 37.00 52.86 145
Asian/Pacific Islander, Non-Hispanic 6.28 3.38 10.59 14
Hispanic/Latino 20.56 18.68 22.60 587
White,Non-Hispanic 27.68 25.69 29.78 748
Other 53.29 41.67 67.20 83
Kings Black, Non-Hispanic 41.34 24.22 65.37 23
Hispanic/Latino 31.40 26.13 37.45 163
White,Non-Hispanic 28.80 23.99 34.29 129
Other 43.55 24.42 77.59 17
Lake Hispanic/Latino 27.83 15.09 46.61 17
White,Non-Hispanic 22.35 17.35 28.28 79
Lassen White,Non-Hispanic 21.43 15.17 29.38 39
Los Angeles Black, Non-Hispanic 9.67 8.94 10.44 664
Asian/Pacific Islander, Non-Hispanic 2.57 2.27 2.91 268
Hispanic/Latino 5.59 5.32 5.88 1,875
White,Non-Hispanic 9.38 8.97 9.80 2,220
Other 32.49 29.28 35.96 422
Madera Hispanic/Latino 32.10 27.09 37.82 185
White,Non-Hispanic 25.39 20.69 30.80 113
Marin White,Non-Hispanic 7.11 5.66 8.81 103
Mariposa White,Non-Hispanic 31.04 20.83 44.35 35
Mendocino Hispanic/Latino 14.10 7.25 24.99 19
White,Non-Hispanic 32.34 27.09 38.28 153
Other 28.75 14.97 50.25 13
Merced Black, Non-Hispanic 31.86 19.88 48.46 22
Hispanic/Latino 19.52 16.37 23.11 172
Other 36.06 19.30 61.85 14
White,Non-Hispanic 26.80 23.04 30.99 192
Modoc White,Non-Hispanic 19.38 9.42 35.26 12
Monterey Hispanic/Latino 5.39 4.21 6.82 95
White,Non-Hispanic 7.99 6.33 9.95 89
Other 20.60 10.57 36.08 14
Napa Hispanic/Latino 9.02 5.81 13.62 29
White,Non-Hispanic 16.85 13.63 20.59 114
Nevada White,Non-Hispanic 16.95 13.68 20.74 110
Orange Black, Non-Hispanic 9.86 6.73 14.01 35
Asian/Pacific Islander, Non-Hispanic 2.63 2.12 3.21 98
Hispanic/Latino 3.34 2.87 3.87 241
White,Non-Hispanic 7.49 6.97 8.04 831
Other 21.98 17.61 27.12 105
Placer Hispanic/Latino 10.87 7.30 15.59 35
White,Non-Hispanic 17.96 16.13 19.94 370
Other 23.27 12.73 38.95 17
Plumas White,Non-Hispanic 30.26 20.54 42.79 39
Riverside Black, Non-Hispanic 28.31 24.97 31.98 280
Asian/Pacific Islander, Non-Hispanic 3.34 2.24 4.80 32
Hispanic/Latino 19.83 18.60 21.12 1,256
White,Non-Hispanic 23.87 22.71 25.07 1,766
Other 96.48 85.37 108.63 338
Sacramento Black, Non-Hispanic 22.93 20.09 26.06 253
Asian/Pacific Islander, Non-Hispanic 3.82 2.90 4.93 60
Hispanic/Latino 11.54 9.98 13.29 236
White,Non-Hispanic 15.61 14.59 16.68 920
Other 33.32 26.60 41.15 123
San Benito Hispanic/Latino 6.02 3.33 10.27 15
White,Non-Hispanic 9.63 5.30 16.00 15
San Bernardino Black, Non-Hispanic 26.23 23.42 29.31 347
Asian/Pacific Islander, Non-Hispanic 4.42 3.15 6.04 41
Hispanic/Latino 12.85 11.90 13.86 869
White,Non-Hispanic 24.34 23.07 25.66 1,445
Other 55.69 47.24 65.24 185
San Diego Black, Non-Hispanic 11.12 9.24 13.28 132
Asian/Pacific Islander, Non-Hispanic 2.30 1.73 3.01 57
Hispanic/Latino 5.87 5.25 6.54 394
White,Non-Hispanic 8.20 7.69 8.74 1,030
Other 22.04 17.90 26.84 131
San Francisco Black, Non-Hispanic 6.86 4.44 10.10 28
Asian/Pacific Islander, Non-Hispanic 1.51 1.05 2.10 38
Hispanic/Latino 2.65 1.64 4.05 23
White,Non-Hispanic 3.60 2.84 4.51 105
Other 16.20 8.96 26.46 18
San Joaquin Black, Non-Hispanic 32.03 26.16 38.82 114
Asian/Pacific Islander, Non-Hispanic 5.43 3.81 7.49 38
Hispanic/Latino 14.23 12.30 16.39 254
White,Non-Hispanic 20.15 18.24 22.22 432
Other 32.18 22.11 45.08 47
San Luis Obispo Hispanic/Latino 6.66 3.87 10.64 23
White,Non-Hispanic 12.34 10.56 14.34 198
Other 29.66 15.56 51.18 16
San Mateo Asian/Pacific Islander, Non-Hispanic 1.58 1.00 2.37 24
Hispanic/Latino 3.96 2.80 5.44 45
White,Non-Hispanic 5.48 4.56 6.54 149
Other 12.28 6.73 20.59 17
Santa Barbara Hispanic/Latino 5.34 4.01 6.97 67
White,Non-Hispanic 7.47 6.13 9.01 127
Santa Clara Black, Non-Hispanic 8.11 5.19 12.10 27
Asian/Pacific Islander, Non-Hispanic 2.32 1.85 2.88 88
Hispanic/Latino 5.99 5.06 7.04 187
White,Non-Hispanic 7.15 6.45 7.91 416
Santa Clara Other 29.07 21.86 37.72 72
Santa Cruz Hispanic/Latino 3.54 1.99 5.87 19
White,Non-Hispanic 6.50 5.11 8.15 84
Shasta White,Non-Hispanic 36.22 32.62 40.08 404
Siskiyou White,Non-Hispanic 31.62 24.64 39.87 80
Solano Black, Non-Hispanic 14.77 11.38 18.86 70
Asian/Pacific Islander, Non-Hispanic 2.87 1.51 4.93 13
Hispanic/Latino 8.69 6.38 11.59 58
White,Non-Hispanic 13.08 11.18 15.20 181
Other 22.69 13.65 35.28 26
Sonoma Black, Non-Hispanic 22.25 11.49 39.44 13
Hispanic/Latino 9.73 7.02 13.10 68
White,Non-Hispanic 12.60 11.24 14.08 351
Other 27.90 15.74 44.86 20
Stanislaus Black, Non-Hispanic 21.95 13.76 33.66 23
Hispanic/Latino 17.19 14.78 19.88 245
White,Non-Hispanic 26.66 24.42 29.05 548
Other 35.15 24.25 49.22 38
Sutter Hispanic/Latino 11.24 6.41 18.44 22
White,Non-Hispanic 20.78 16.37 26.00 79
Tehama Hispanic/Latino 18.18 10.40 30.61 17
White,Non-Hispanic 50.52 43.09 58.84 181
Trinity White,Non-Hispanic 32.78 20.47 49.42 25
Tulare Black, Non-Hispanic 30.60 15.45 54.23 13
Hispanic/Latino 19.32 17.03 21.83 334
White,Non-Hispanic 24.62 21.77 27.74 287
Other 168.79 135.84 207.17 100
Tuolumne White,Non-Hispanic 31.84 25.64 39.03 106
Ventura Hispanic/Latino 3.88 3.05 4.86 94
White,Non-Hispanic 9.32 8.26 10.48 299
Other 17.22 9.86 27.80 21
Yolo Black, Non-Hispanic 39.40 20.82 68.11 14
Hispanic/Latino 18.39 14.37 23.25 83
White,Non-Hispanic 18.24 15.32 21.54 148
Yuba Hispanic/Latino 8.55 4.60 16.06 14
Yuba White,Non-Hispanic 28.90 23.40 35.29 98

Notes About the Data 

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(If a county or gender is missing, there were less than 12 cases)
 
County Gender Age-adjusted       rate (per 100,000) Lower 95% Limit Upper 95% Limit Number of cases
California Female 8.37 8.22 8.52 12,607
Male 14.06 13.87 14.26 20,356
Alameda Female 6.36 5.75 7.03 398
Male 7.69 6.97 8.47 434
Amador Female 20.99 13.38 31.28 30
Male 30.96 22.49 41.49 49
Butte Female 13.28 10.97 15.93 127
Male 26.73 23.34 30.48 239
Calaveras Female 21.63 14.80 30.45 39
Male 39.55 29.89 51.22 65
Colusa Female 33.72 21.90 49.48 26
Male 46.45 32.65 64.06 38
Contra Costa Female 9.94 9.01 10.94 431
Male 12.55 11.45 13.72 492
El Dorado Female 10.18 7.95 12.84 77
Male 19.28 15.99 23.04 128
Fresno Female 12.91 11.75 14.16 464
Male 26.89 25.16 28.71 941
Glenn Female 18.98 11.36 29.59 19
Male 34.13 24.14 46.90 39
Humboldt Female 3.90 2.43 5.94 23
Male 7.47 5.35 10.16 43
Imperial Female 42.65 37.72 48.05 275
Male 121.85 113.47 130.68 810
Inyo Male 21.09 11.63 35.06 16
Kern Female 17.00 15.55 18.55 520
Male 32.19 30.21 34.26 1,057
Kings Female 25.29 21.08 30.11 130
Male 30.20 25.96 34.97 204
Lake Female 14.46 9.99 20.22 38
Male 27.04 20.60 34.79 65
Lassen Female 16.72 9.44 27.31 16
Male 18.40 12.36 26.54 34
Los Angeles Female 5.75 5.52 5.99 2,315
Male 8.39 8.09 8.69 3,134
Madera Female 16.30 13.23 19.86 99
Male 38.53 33.44 44.16 213
Marin Female 4.80 3.50 6.43 52
Male 7.73 6.02 9.77 73
Mariposa Female 35.58 21.42 55.11 22
Male 26.75 15.65 42.63 19
Mendocino Female 16.71 12.65 21.65 62
Male 38.21 31.81 45.50 130
Merced Female 13.28 11.07 15.81 130
Male 29.20 25.75 32.99 275
Monterey Female 5.27 4.20 6.53 85
Male 7.43 6.17 8.88 126
Napa Female 11.44 8.78 14.67 66
Male 15.97 12.74 19.75 86
Nevada Female 11.09 7.86 15.19 46
Male 19.36 14.96 24.62 72
Orange Female 4.24 3.88 4.62 521
Male 6.74 6.27 7.23 789
Placer Female 11.38 9.65 13.32 160
Male 21.14 18.69 23.82 276
Plumas Female 16.38 8.74 28.20 16
Male 36.42 22.65 55.00 25
Riverside Female 14.51 13.70 15.34 1,240
Male 29.82 28.64 31.04 2,432
Sacramento Female 10.67 9.84 11.54 622
Male 18.01 16.88 19.20 970
San Benito Female 6.15 3.35 10.40 14
Male 10.47 6.60 15.86 23
San Bernardino Female 14.29 13.46 15.15 1,138
Male 23.11 22.00 24.26 1,749
San Diego Female 5.64 5.23 6.08 701
Male 8.54 8.02 9.08 1,043
San Francisco Female 2.64 2.12 3.26 99
Male 3.51 2.86 4.26 113
San Joaquin Female 11.87 10.60 13.26 321
Male 21.79 19.99 23.71 564
San Luis Obispo Female 9.14 7.33 11.25 98
Male 12.51 10.51 14.79 146
San Mateo Female 3.44 2.80 4.18 106
Male 4.92 4.12 5.83 136
Santa Barbara Female 4.48 3.51 5.62 76
Male 7.91 6.62 9.38 137
Santa Clara Female 5.29 4.76 5.86 372
Male 6.28 5.68 6.93 418
Santa Cruz Female 4.67 3.42 6.22 49
Male 6.16 4.67 7.97 62
Shasta Female 20.90 17.57 24.67 151
Male 42.13 37.18 47.53 278
Siskiyou Female 16.03 10.20 23.85 26
Male 39.54 30.23 50.72 67
Solano Female 8.17 6.84 9.69 135
Male 13.25 11.50 15.19 213
Sonoma Female 9.11 7.83 10.53 194
Male 14.23 12.55 16.07 267
Stanislaus Female 16.50 14.79 18.37 341
Male 26.78 24.49 29.22 523
Sutter Female 10.55 7.49 14.44 39
Male 21.42 16.89 26.80 78
Tehama Female 30.14 23.64 37.86 78
Male 53.25 44.28 63.48 129
Trinity Female 25.04 12.26 45.02 12
Male 39.57 22.76 63.30 18
Tulare Female 14.72 12.91 16.71 244
Male 30.96 28.22 33.89 497
Tuolumne Female 18.46 12.61 26.02 37
Male 39.20 31.38 48.36 92
Ventura Female 5.50 4.73 6.37 181
Male 8.00 7.03 9.07 253
Yolo Female 10.97 8.72 13.62 86
Male 23.19 19.71 27.10 169
Yuba Female 13.94 9.78 19.26 37
Male 31.62 25.20 39.18 87
 
 

(If a county or age group is missing, there were less than 12 cases)
 

 

County Ages Age-adjusted rate (per 100,000) Lower 95% Limit Upper 95% Limit Number of cases
California <5 4.76 4.46 5.07 973
5-17 8.36 8.12 8.60 4,658
18-34 11.68 11.43 11.93 8,537
35-64 11.19 11.00 11.39 12,834
65+ 17.94 17.48 18.40 5,961
Alameda <5 1.66 0.88 2.83 13
5-17 5.39 4.43 6.51 109
18-34 5.65 4.82 6.57 167
35-64 6.16 5.48 6.89 307
65+ 17.84 15.62 20.30 236
Amador 5-17 36.93 20.79 60.61 16
18-34 41.16 25.03 63.73 20
35-64 19.56 12.61 28.93 28
65+ 24.56 13.71 40.65 15
Butte 5-17 10.27 6.95 14.66 31
18-34 24.22 19.80 29.33 113
35-64 23.75 20.00 27.98 154
65+ 23.02 17.58 29.59 62
Calaveras 5-17 21.45 11.03 37.57 12
18-34 44.86 28.68 66.89 24
35-64 31.88 22.43 43.74 45
65+ 31.94 20.11 48.23 23
Colusa 18-34 42.53 24.28 69.08 16
35-64 53.13 36.08 75.29 32
Contra Costa <5 3.33 1.98 5.27 18
5-17 9.08 7.64 10.72 140
18-34 11.07 9.55 12.76 190
35-64 9.37 8.37 10.45 328
65+ 24.36 21.39 27.62 247
El Dorado 5-17 10.23 6.74 14.90 27
18-34 16.58 11.83 22.58 40
35-64 15.28 12.17 18.92 92
65+ 22.92 16.63 30.79 44
Fresno <5 8.37 6.25 10.97 52
5-17 11.67 10.07 13.46 189
18-34 23.02 20.89 25.31 432
35-64 21.43 19.64 23.34 533
65+ 27.26 23.58 31.34 199
Glenn 18-34 29.28 15.99 49.15 14
35-64 36.39 24.33 52.26 30
Humboldt 18-34 9.29 6.09 13.57 27
35-64 5.17 3.18 7.94 22
65+ 8.41 4.32 14.78 12
Imperial <5 17.27 10.40 26.97 19
5-17 35.17 28.76 42.58 105
18-34 88.04 78.25 98.71 295
35-64 106.91 97.82 116.60 514
65+ 110.52 93.60 129.62 152
Inyo 35-64 20.64 10.43 36.49 13
Kern <5 10.74 8.21 13.79 61
5-17 16.17 14.17 18.38 234
18-34 29.26 26.71 31.98 488
35-64 26.40 24.32 28.60 604
65+ 32.91 28.37 37.97 190
Kings <5 13.15 7.00 22.49 13
5-17 23.99 18.12 31.15 56
18-34 32.04 26.29 38.68 109
35-64 26.92 22.26 32.26 117
65+ 41.28 29.28 56.59 39
Lake 5-17 15.67 8.33 26.85 13
18-34 28.96 18.89 42.48 26
35-64 21.48 15.20 29.38 44
65+ 18.68 11.04 29.70 18
Lassen 18-34 27.88 17.15 42.75 21
35-64 15.52 9.18 24.51 18
Los Angeles <5 4.58 4.02 5.19 243
5-17 5.90 5.51 6.30 872
18-34 6.01 5.67 6.35 1,214
35-64 6.54 6.25 6.83 1,993
65+ 13.38 12.61 14.19 1,127
Madera <5 16.80 9.60 27.28 16
5-17 18.10 13.20 24.23 45
18-34 34.07 27.61 41.58 97
35-64 30.80 25.69 36.62 130
65+ 19.01 12.15 28.30 24
Marin 5-17 5.92 3.45 9.47 17
18-34 6.31 3.85 9.75 20
35-64 5.45 4.02 7.22 51
65+ 11.29 7.81 15.76 35
Mariposa 35-64 25.09 13.02 43.17 14
Mendocino 5-17 18.92 11.85 28.65 22
18-34 44.58 34.24 57.05 63
35-64 25.26 19.61 32.00 76
65+ 24.59 15.82 36.43 25
Merced <5 7.89 4.31 13.24 14
5-17 10.23 7.54 13.56 48
18-34 23.74 19.68 28.38 122
35-64 22.83 19.35 26.75 154
65+ 35.10 27.18 44.62 67
Monterey 5-17 4.21 2.77 6.12 27
18-34 9.90 7.90 12.25 85
35-64 5.80 4.51 7.35 69
65+ 7.49 4.93 10.93 27
Napa 5-17 7.70 4.31 12.71 15
18-34 16.91 11.96 23.21 38
35-64 11.82 8.70 15.66 50
65+ 28.65 20.94 38.25 47
Nevada 5-17 12.52 7.15 20.41 16
18-34 24.89 16.91 35.32 31
35-64 13.19 9.33 18.06 44
65+ 17.91 11.76 26.14 27
Orange <5 2.33 1.64 3.21 37
5-17 5.80 5.11 6.54 262
18-34 5.50 4.90 6.14 313
35-64 4.62 4.19 5.07 444
65+ 9.36 8.24 10.59 254
Placer 5-17 18.11 14.56 22.27 90
18-34 19.53 15.94 23.69 103
35-64 14.60 12.40 17.07 163
65+ 18.90 14.85 23.71 75
Plumas 18-34 46.50 23.88 81.65 12
35-64 23.15 11.87 40.12 16
Riverside <5 6.74 5.40 8.32 87
5-17 12.80 11.67 14.01 473
18-34 23.94 22.43 25.53 939
35-64 24.73 23.50 26.01 1,523
65+ 32.87 30.39 35.51 650
Sacramento <5 2.85 1.81 4.28 23
5-17 10.59 9.26 12.07 226
18-34 15.49 14.05 17.04 425
35-64 14.72 13.59 15.92 641
65+ 22.12 19.58 24.90 277
San Benito 35-64 7.70 4.07 13.16 13
San Bernardino <5 7.87 6.40 9.57 100
5-17 11.72 10.63 12.89 425
18-34 18.46 17.16 19.85 744
35-64 20.36 19.22 21.55 1,205
65+ 29.35 26.57 32.34 413
San Diego <5 3.60 2.74 4.64 59
5-17 4.98 4.33 5.70 213
18-34 7.40 6.75 8.08 489
35-64 7.41 6.87 7.99 692
65+ 10.58 9.39 11.88 291
San Francisco 18-34 2.64 1.95 3.52 51
35-64 2.88 2.28 3.59 80
65+ 7.36 5.69 9.37 67
San Joaquin <5 7.09 4.82 10.06 31
5-17 13.53 11.52 15.80 160
18-34 15.29 13.22 17.60 195
35-64 17.28 15.49 19.22 344
65+ 28.03 23.76 32.83 155
San Luis Obispo 5-17 9.97 6.83 14.07 33
18-34 12.36 9.48 15.82 67
35-64 10.48 8.35 13.00 90
65+ 16.24 12.13 21.29 53
San Mateo 5-17 3.62 2.48 5.11 32
18-34 3.66 2.67 4.89 46
35-64 3.64 2.92 4.48 90
65+ 9.31 7.27 11.76 72
Santa Barbara 5-17 5.81 4.04 8.10 35
18-34 8.48 6.64 10.67 76
35-64 5.08 3.89 6.52 63
65+ 7.65 5.27 10.74 34
Santa Clara <5 2.10 1.30 3.21 21
5-17 3.62 2.90 4.46 87
18-34 4.49 3.81 5.27 153
35-64 5.00 4.44 5.62 289
65+ 15.70 13.77 17.82 240
Santa Cruz 18-34 5.18 3.40 7.56 27
35-64 5.71 4.20 7.59 50
65+ 9.58 5.88 14.73 21
Shasta 5-17 17.22 12.45 23.22 43
18-34 45.02 37.48 53.62 127
35-64 35.72 30.53 41.51 185
65+ 29.65 23.09 37.52 70
Siskiyou 18-34 58.22 40.70 80.78 36
35-64 20.65 13.36 30.34 30
65+ 23.12 13.17 37.68 16
Solano 5-17 7.05 5.12 9.47 44
18-34 14.73 12.11 17.75 111
35-64 9.48 7.88 11.30 128
65+ 15.47 11.64 20.15 55
Sonoma 5-17 6.48 4.69 8.74 43
18-34 13.48 11.11 16.22 113
35-64 10.85 9.26 12.64 175
65+ 23.06 19.09 27.61 122
Stanislaus <5 13.69 9.95 18.38 44
5-17 13.78 11.42 16.48 120
18-34 21.91 19.06 25.06 214
35-64 24.12 21.67 26.76 361
65+ 29.12 24.22 34.71 125
Sutter 5-17 13.39 8.18 20.68 20
18-34 20.59 14.33 28.65 35
35-64 16.94 12.36 22.65 46
65+ 14.05 7.47 24.06 13
Tehama 5-17 26.57 17.19 39.24 25
18-34 52.12 38.89 68.39 52
35-64 44.48 35.15 55.47 84
65+ 49.58 35.20 67.91 39
Trinity 18-34 77.90 41.47 133.22 13
Tulare <5 8.34 5.50 12.13 27
5-17 11.24 9.04 13.81 90
18-34 26.90 23.53 30.62 231
35-64 26.85 23.90 30.05 304
65+ 27.45 22.02 33.80 89
Tuolumne 18-34 55.20 40.38 73.71 46
35-64 31.70 23.26 42.05 54
65+ 22.57 13.77 34.91 20
Ventura 5-17 7.21 5.81 8.84 92
18-34 7.80 6.44 9.37 115
35-64 5.30 4.45 6.28 138
65+ 10.87 8.60 13.54 80
Yolo 5-17 15.48 11.21 20.84 44
18-34 14.43 11.04 18.48 68
35-64 19.27 15.69 23.41 103
65+ 22.47 15.51 31.47 34
Yuba 5-17 14.71 8.57 23.53 17
18-34 34.42 25.35 45.67 48
35-64 18.55 13.01 25.63 37
65+ 38.23 23.86 58.14 22

 

Notes About the Data

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Notes About the Data

  • Heat-related illness occurs when the body’s natural temperature controls become overloaded. Climate change and our built environment both contribute to extreme heat. For more information…
  • Data Sources: Multiple Causes of Death Files from the Center for Health Statistics, 2000-2010. Patient Discharge Data (2000-2012) and Emergency Department Data (2005-2012) from the Office of Statewide Health Planning and Development. For more information…
  • The 95% Confidence Interval (CI) is the range of values that likely contains the true heat-related event rate per 100,000 in the population. For more information...
  • Data are not available if the number of events are less than 12.

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