Number of ED Visits Due to Asthma (N) and Age-Adjusted Rate (per 10,000 Residents), California Counties, All Ages, 2010

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COUNTY	N	Rate
Imperial	1,680	91.0
Merced	2,199	77.4
Tehama	418	68.1
Madera	1,191	75.5
Alameda	9,791	63.3
Tuolumne	219	42.7
Contra Costa	7,528	72.3
Shasta	1,074	61.6
Kings	1,240	73.0
Fresno	7,153	69.5
Humboldt	802	61.0
Mendocino	626	72.3
Lake	409	72.0
San Joaquin	4,343	57.7
Nevada	442	52.7
Calaveras	200	51.9
Solano	3,313	76.2
Inyo	84	47.1
Sacramento	9,181	63.7
San Bernardino	12,241	54.9
Del Norte	152	52.6
Yuba	322	40.7
Plumas	70	35.8
Butte	1,165	54.0
Tulare	2,463	50.8
Stanislaus	2,822	49.9
Trinity	59	38.9
San Benito	296	46.8
Modoc	43	44.6
Colusa	82	33.8
Los Angeles	46,947	45.0
CALIFORNIA OVERALL	179,972	46.1
Mariposa	66	37.0
Monterey	1,986	44.3
Kern	4,388	48.4
Amador	167	45.0
Riverside	9,592	42.2
Sonoma	2,281	47.6
Siskiyou	148	35.5
San Luis Obispo	842	35.1
San Francisco	3,389	45.6
Santa Cruz	878	34.5
San Diego	11,182	35.2
Sutter	317	30.6
San Mateo	2,820	39.1
Lassen	112	31.4
El Dorado	533	31.4
Ventura	2,894	34.2
Napa	615	43.8
Yolo	784	39.4
Glenn	126	40.0
Santa Clara	5,783	32.2
Orange	9,095	28.6
Placer	1,149	34.9
Marin	769	31.6
Santa Barbara	1,375	32.2
Mono	24	18.0
Sierra	12	37.7
Alpine	<5	--

Data Source: Office of Statewide Health Planning and Development (OSHPD), 2010

*An asthma emergency department (ED) visit is an admission to a licensed ED in California with the primary diagnosis of asthma. The rate of asthma ED visits is the number of ED visits per 10,000 residents, age-adjusted to the 2000 U.S. population. Population denominators for rates are from the California Department of Finance. Rates based on numbers <12 are not reported.