Active Asthma Prevalence, All Ages, 2011-2012

(People who have been diagnosed with asthma and still have asthma)

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COUNTY (OR GROUP)Percent with Active Asthma95% Confidence Interval
Merced 13.6 (7.5 - 19.8)
Tehama/Glenn/Colusa 10.4 (5.9 - 14.9)
Yuba 8.2 (4.6 - 11.8)
Kern 9.2 (6.6 - 11.9)
Fresno 14.2 (10.9 - 17.5)
Sacramento 7.8 (5.9 - 9.7)
Solano 14.2 (9.8 - 18.6)
San Joaquin 10.9 (6.9 - 15.0)
Santa Cruz 7.4 (4.7 - 10.1)
Kings 9.8 (5.8 - 13.8)
Sutter 10.3 (6.3 - 14.4)
Alameda 10.0 (7.9 - 12.1)
Lake 14.5 (6.6 - 22.4)
Napa 9.2 (3.9 - 14.6)
Butte 14.7 (11.1 - 18.3)
Shasta 10.6 (6.7 - 14.4)
Contra Costa 10.6 (7.7 - 13.6)
Imperial 8.6 (5.3 - 11.8)
Madera 8.0 (4.5 - 11.4)
Nevada 8.5 (5.6 - 11.5)
Del Norte/Siskiyou/Lassen/Trinity/Modoc/Plumas/Sierra 8.5 (5.3 - 11.7)
San Mateo 6.1 (4.1 - 8.1)
Placer 7.2 (4.2 - 10.2)
San Bernardino 8.1 (6.4 - 9.9)
Stanislaus 7.9 (4.7 - 11.0)
Tulare 9.4 (6.5 - 12.2)
Yolo 7.3 (4.5 - 10.1)
Tuolumne/Calaveras/Amador/Inyo/Mariposa/Mono/Alpine 5.0 (2.2 - 7.7)
El Dorado 12.1 (7.4 - 16.8)
CALIFORNIA OVERALL 8.3 (7.9 - 8.7)
Ventura 6.0 (4.0 - 8.0)
Santa Barbara 8.1 (5.0 - 11.3)
Sonoma 11.8 (8.1 - 15.6)
San Luis Obispo 5.2 (3.5 - 6.9)
San Diego 7.5 (6.3 - 8.6)
Los Angeles 7.8 (6.9 - 8.7)
Humboldt 10.6 (6.7 - 14.4)
Mendocino 5.3 (3.2 - 7.3)
Monterey 6.8 (4.0 - 9.5)
Orange 6.4 (5.1 - 7.7)
Santa Clara 8.5 (6.6 - 10.3)
Marin 6.5 (3.9 - 9.2)
San Francisco 9.0 (5.9 - 12.1)
Riverside 7.4 (5.2 - 9.5)

Data Source: California Health Interview Survey (CHIS), 2011-2012

*Active asthma prevalence is the proportion of people in the population who have ever been diagnosed with asthma by a health provider and report that they still have asthma and/or report that they had an episode or attack within the past 12 months. For more information about these data, please see the Technical Notes document accompanying the County Asthma Profiles.