West Nile virus-positive dead birds
by County and City California, 2024

(2024-10-13) - Source: http://westnile.ca.gov

Alameda County
Alameda5
Castro Valley1
Fremont12
Hayward3
Livermore8
Newark7
Oakland2
Pleasanton3
Union City12
Total Positives for Alameda County: 53
 
Butte County
Chico3
Durham1
Total Positives for Butte County: 4
 
Colusa County
Colusa1
Total Positives for Colusa County: 1
 
Contra Costa County
Brentwood1
Concord3
Oakley1
San Ramon1
Total Positives for Contra Costa County: 6
 
Fresno County
Biola1
Total Positives for Fresno County: 1
 
Lake County
Hidden Valley Lake1
Kelseyville1
Nice1
Total Positives for Lake County: 3
 
Los Angeles County
Baldwin Hills1
Baldwin Park1
Culver City1
Granada Hills1
Inglewood1
Long Beach1
Los Angeles3
Norwalk1
Porter Ranch1
Sun Valley1
Toluca Lake1
Venice1
West Covina2
Total Positives for Los Angeles County: 16
 
Madera County
Madera1
Total Positives for Madera County: 1
 
Merced County
Atwater1
Total Positives for Merced County: 1
 
Orange County
Laguna Beach1
Total Positives for Orange County: 1
 
Placer County
Auburn2
Roseville1
Total Positives for Placer County: 3
 
Riverside County
Corona2
Total Positives for Riverside County: 2
 
Sacramento County
Carmichael3
Citrus Heights4
Elk Grove4
Fair Oaks2
Folsom1
Rio Linda1
Sacramento50
Wilton1
Total Positives for Sacramento County: 66
 
San Bernardino County
Chino1
Chino Hills3
Lake Arrowhead1
Ontario3
Rancho Cucamonga1
San Bernardino1
Total Positives for San Bernardino County: 10
 
San Diego County
Escondido2
san diego1
San Diego1
Total Positives for San Diego County: 4
 
San Joaquin County
Acampo1
Lockeford1
Lodi2
Stockton1
Thornton1
Total Positives for San Joaquin County: 6
 
San Mateo County
Atherton4
Foster City2
Menlo Park20
Portola Valley1
Redwood City1
San Carlos3
San Mateo1
Total Positives for San Mateo County: 32
 
Santa Clara County
Campbell7
Cupertino3
Los Altos14
Los Altos Hills2
Los Gatos4
Milpitas7
Mountain View10
Mt. View1
Palo Alto87
San Jose114
Santa Clara11
Stanford4
Sunnyvale10
Total Positives for Santa Clara County: 274
 
Solano County
Dixon1
Vacaville1
Total Positives for Solano County: 2
 
Yolo County
Davis3
Woodland3
Total Positives for Yolo County: 6
 
Yuba County
Marysville1
Olivehurst1
Total Positives for Yuba County: 2

Total Positives for all Counties: 494

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