Name of place Number of counties Principal county Lower zip code Upper zip code
Yager Junction 1 Humboldt County    
Yale 1 Riverside County 92544  
Yankee Hill 1 Butte County 95965  
Yankee Hill 1 Tuolumne County    
Yankee Jims 1 Placer County 95713  
Yarmouth 1 San Joaquin County    
Yellowjacket 1 Tehama County    
Yerba Buena Island 1 San Francisco County    
Yermo 1 San Bernardino County 92398  
Yettem 1 Tulare County 93670  
Ygnacio Valley 1 Contra Costa County 94598  
Yokohl 1 Tulare County    
Yolano 1 Solano County 95620  
Yolo 1 Yolo County 95697  
Yontocket 1 Del Norte County    
Yorba 1 Los Angeles County 91767  
Yorba Linda 1 Orange County 92686  
York 1 Los Angeles County 90050  
Yorkville 1 Mendocino County 95494  
Yosemite Forks 1 Madera County    
Yosemite Junction 1 Tuolumne County 95389  
Yosemite Lakes 1 Madera County    
Yosemite Lakes Park 1 Madera County    
Yosemite Lodge 1 Mariposa County 95389  
Yosemite National Park 3 Madera County 95389  
Yosemite National Park 3 Mariposa County 95389  
Yosemite National Park 3 Tuolumne County 95389  
Yosemite National Park 1 Mariposa County 95389  
Yosemite Valley 1 Mariposa County    
Yosemite Village 1 Mariposa County    
You Bet 1 Nevada County    
Youngstown 1 San Joaquin County    
Yountville 1 Napa County 94599  
Yreka 1 Siskiyou County 96097  
Yreka City 1 Siskiyou County 96097  
Yuba City 1 Sutter County 95991  
Yuba City Farm Labor Center 1 Sutter County 95991  
South Yuba City 1 Sutter County 95991  
Yuba Pass 1 Nevada County    
Yuba-Sutter Area 2 Sutter County Yuba County    
Yucaipa 1 San Bernardino County 92399  
Yucca Grove 1 San Bernardino County    
Yucca Inn 1 San Bernardino County    
Yucca Valley 1 San Bernardino County 92284  
Yurok Indian Reservation 2 Del Norte County 95546  
Yurok Indian Reservation 2 Humboldt County 95546