Estimated Number of People with Lifetime Asthma, California Counties, All Ages 

(People who have ever been diagnosed with asthma by a health provider)

COUNTY	Estimated Number with Lifetime Asthma
Los Angeles	1,250,000
Orange	312,000
San Diego	375,000
San Bernardino	245,000
Sacramento	214,000
Alameda	198,000
Riverside	366,000
Santa Clara	210,000
Fresno	157,000
Contra Costa	191,000
Kern	123,000
San Mateo	86,000
Ventura	108,000
San Joaquin	118,000
San Francisco	102,000
Solano	66,000
Stanislaus	100,000
Sonoma	78,000
Placer	59,000
Tulare	69,000
Merced	39,000
Santa Barbara	42,000
Monterey	41,000
Santa Cruz	37,000
Butte	37,000
San Luis Obispo	42,000
Marin	28,000
Imperial	22,000
Tuolumne, Calaveras, Amador, Inyo, Mariposa, Mono, Alpine	32,000
Yolo	36,000
Shasta	30,000
El Dorado	27,000
Napa	21,000
Kings	27,000
Tehama, Glenn, Colusa	18,000
Del Norte, Siskiyou, Lassen, Trinity, Modoc, Plumas, Sierra	19,000
Madera	25,000
Humboldt	19,000
Sutter	15,000
Nevada	11,000
Yuba	14,000
San Benito	8,000
Lake	10,000
Mendocino	12,000

Data Source: California Health Interview Survey (CHIS), 2007

For more information about these data, please see the Technical Notes document accompanying the County Asthma Profiles.