West Nile virus-positive dead birds
by County and City California, 2006

(2021-12-01) - Source: http://westnile.ca.gov

Alameda County
Berkeley1
Castro Valley1
Dublin3
Fremont4
Hayward2
Livermore16
Oakland1
Pleasanton10
San Leandro1
San Lorenzo1
Union City1
Total Positives for Alameda County: 41
 
Amador County
Pine Grove1
Plymouth1
Total Positives for Amador County: 2
 
Butte County
Biggs1
Chico21
Durham1
Gridley4
Oroville8
Paradise4
Richvale1
Total Positives for Butte County: 40
 
Calaveras County
Mountain Ranch1
Wallace1
Total Positives for Calaveras County: 2
 
Colusa County
Colusa7
Williams2
Total Positives for Colusa County: 9
 
Contra Costa County
Alamo1
Antioch12
Brentwood6
Byron1
Clayton1
Concord21
CONCORD1
Danville1
Discovery Bay1
Knightsen2
Lafayette1
Martinez5
Moraga1
Oakley13
Pittsburg3
Pleasant Hill7
Richmond1
San Ramon2
Walnut Creek13
Total Positives for Contra Costa County: 93
 
El Dorado County
Cameron Park2
Camino1
Cool1
El Dorado Hills1
Placerville1
Somerset1
South Lake Tahoe12
Total Positives for El Dorado County: 19
 
Fresno County
Caruthers1
Clovis9
Dinuba1
Firebaugh1
Fowler1
Fresno52
FRESNO3
Friant1
Kerman1
Prather1
Sanger1
Selma2
Tollhouse1
Total Positives for Fresno County: 75
 
Glenn County
Orland14
Willows21
Total Positives for Glenn County: 35
 
Humboldt County
Arcata1
Eureka1
Total Positives for Humboldt County: 2
 
Inyo County
Big Pine3
Bishop5
Total Positives for Inyo County: 8
 
Kern County
Bakersfield21
Delano1
Edwards1
Wasco1
Total Positives for Kern County: 24
 
Kings County
Corcoran2
Hanford5
Lemoore6
Total Positives for Kings County: 13
 
Lake County
Kelseyville5
Lakeport1
Lower Lake1
Nice1
Total Positives for Lake County: 8
 
Lassen County
Doyle1
Mcarthur1
Standish1
Total Positives for Lassen County: 3
 
Los Angeles County
Beverly Hills2
Burbank8
Canyon Country2
Castaic3
Cerritos2
Chatsworth2
Commerce1
El Monte1
Encino5
Gardena1
Hidden Hills1
La Mirada1
Lancaster4
Long Beach1
LONG BEACH1
Los Angeles13
North Hollywood4
Northridge2
Pacific Palisades1
Palmdale2
Panorama City1
Pico Rivera1
Reseda1
San Gabriel2
Santa Clarita1
Santa Monica1
Sherman Oaks4
Studio City1
Sun Valley1
Tarzana1
TARZANA4
Valley Village2
Van Nuys9
Venice1
West Covina1
Westlake Village7
Winnetka2
Woodland Hills1
Total Positives for Los Angeles County: 98
 
Madera County
Madera3
Total Positives for Madera County: 3
 
Marin County
Marshall1
Novato1
San Anselmo3
San Rafael4
Total Positives for Marin County: 9
 
Mariposa County
Mariposa1
Total Positives for Mariposa County: 1
 
Mendocino County
Redwood Valley2
Ukiah4
Willits1
Total Positives for Mendocino County: 7
 
Merced County
Atwater13
Ballico1
Delhi2
Dos Palos1
Gustine5
Hilmar1
Livingston1
Los Banos3
Merced13
Stevinson1
Total Positives for Merced County: 41
 
Modoc County
Alturas1
Lookout1
Total Positives for Modoc County: 2
 
Mono County
Chalfant Valley1
Total Positives for Mono County: 1
 
Monterey County
Greenfield1
Monterey1
Pacific Grove1
Prunedale1
Salinas1
Total Positives for Monterey County: 5
 
Napa County
Napa6
Saint Helena2
Total Positives for Napa County: 8
 
Nevada County
Grass Valley1
Penn Valley3
Total Positives for Nevada County: 4
 
Orange County
Anaheim4
Anaheim Hills1
Brea2
Costa Mesa2
Fullerton3
Huntington Beach4
Irvine3
Laguna Hills3
Laguna Niguel2
La Habra1
Lake Forest1
Mission Viejo3
Orange5
Rancho Santa Margarita1
Santa Ana6
Tustin4
Yorba Linda4
Total Positives for Orange County: 49
 
Placer County
Granite Bay2
Lincoln2
Loomis2
Roseville6
ROSEVILLE1
Total Positives for Placer County: 13
 
Riverside County
Desert Hot Springs1
Mira Loma1
Palm Desert1
Total Positives for Riverside County: 3
 
Sacramento County
Antelope4
Carmichael3
Citrus Heights4
Elk Grove11
Elverta4
Folsom2
Galt3
Gold River2
North Highlands1
Orangevale2
Rancho Murieta1
Rio Linda4
RIO LINDA2
Sacramento39
Wilton7
Total Positives for Sacramento County: 89
 
San Benito County
Hollister1
Total Positives for San Benito County: 1
 
San Bernardino County
Alta Loma1
Angelus Oaks2
Big Bear City2
Chino2
Fontana4
Hinkley1
Lake Arrowhead1
Loma Linda2
Montclair1
Ontario3
Pinon Hills1
Rancho Cucamonga3
Running Springs3
Sam Bernardino1
San Bernardino1
Upland2
Victorville1
Yucaipa1
Yucca Valley1
Total Positives for San Bernardino County: 33
 
San Diego County
Bonsall1
Campo1
El Cajon3
Encinitas1
Fallbrook1
La Mesa2
Lemon Grove1
San Diego4
SAN DIEGO7
San Marcos1
Spring Valley1
Valley Center2
Vista1
Total Positives for San Diego County: 26
 
San Francisco County
San Francisco3
Total Positives for San Francisco County: 3
 
San Joaquin County
Banta4
Escalon1
Farmington1
Lathrop2
Lodi1
Manteca5
Stockton10
Tracy21
Woodbridge1
Total Positives for San Joaquin County: 46
 
San Luis Obispo County
Arroyo Grande3
Atascadero1
Grover Beach1
Los Osos1
Paso Robles3
San Luis Obispo2
Santa Margarita2
Templeton1
Total Positives for San Luis Obispo County: 14
 
San Mateo County
Burlingame2
Moss Beach1
Portola Valley1
San Carlos1
San Mateo1
South San Francisco1
Total Positives for San Mateo County: 7
 
Santa Barbara County
Carpinteria2
Los Olivos3
Montecito2
Santa Barbara2
Santa Ynez6
Solvang4
Total Positives for Santa Barbara County: 19
 
Santa Clara County
Campbell14
Cupertino13
Gilroy2
Los Altos1
Los Gatos11
Monte Sereno2
Mountain View2
San Jose77
SAN JOSE1
Santa Clara18
Saratoga77
Sunnyvale6
Total Positives for Santa Clara County: 224
 
Santa Cruz County
Aptos1
Bonny Doon1
Boulder Creek1
Santa Cruz4
Total Positives for Santa Cruz County: 7
 
Shasta County
Anderson6
Cottonwood5
Millville1
Palo Cedro1
Redding73
REDDING1
Shasta Lake2
Total Positives for Shasta County: 89
 
Siskiyou County
Weed1
Total Positives for Siskiyou County: 1
 
Solano County
CORDELIA1
Dixon6
Fairfield1
SUISON CITY1
Vacaville7
VACAVILLE2
Vallejo2
VALLEJO1
Total Positives for Solano County: 21
 
Sonoma County
Eldridge1
Glen Ellen1
HEALDSBURG4
Petaluma4
Rohnert Park1
Santa Rosa5
Sonoma7
Total Positives for Sonoma County: 23
 
Stanislaus County
Ceres8
CERES3
Denair1
Hughson3
Modesto27
Newman8
Oakdale4
Patterson1
Riverbank1
Salida1
Turlock19
Vernalis2
Total Positives for Stanislaus County: 78
 
Sutter County
Rio Oso1
Yuba City1
Total Positives for Sutter County: 2
 
Tehama County
Corning1
Cottonwood1
Gerber1
Los Molinos2
Red Bluff7
Total Positives for Tehama County: 12
 
Trinity County
Weaverville1
Total Positives for Trinity County: 1
 
Tulare County
Dinuba1
Terra Bella1
Three Rivers1
Tulare2
Visalia9
Total Positives for Tulare County: 14
 
Tuolumne County
Jamestown1
Total Positives for Tuolumne County: 1
 
Ventura County
Camarillo6
Fillmore1
Newbury Park2
Oak Park1
Oxnard1
Piru1
Simi Valley21
Thousand Oaks21
THOUSAND OAKS2
Ventura6
Total Positives for Ventura County: 62
 
Yolo County
Clarksburg1
Davis38
DAVIS1
West Sacramento2
Woodland12
Total Positives for Yolo County: 54
 
Yuba County
Marysville1
Total Positives for Yuba County: 1

Total Positives for all Counties: 1446

Source: Vector-Borne Disease Section, California Department of Public Health