California counties

Assessor contacts, formal appeal deadlines and a free assessment check for each of California’s 58 counties.

• Alameda CountyFormal appeals close September 15
• Alpine CountyFormal appeals close September 15
• Amador CountyFormal appeals close November 30
• Butte CountyFormal appeals close November 30
• Calaveras CountyFormal appeals close November 30
• Colusa CountyFormal appeals close November 30
• Contra Costa CountyFormal appeals close November 30
• Del Norte CountyFormal appeals close November 30
• El Dorado CountyFormal appeals close November 30
• Fresno CountyFormal appeals close November 30
• Glenn CountyFormal appeals close November 30
• Humboldt CountyFormal appeals close November 30
• Imperial CountyFormal appeals close November 30
• Inyo CountyFormal appeals close September 15
• Kern CountyFormal appeals close November 30
• Kings CountyFormal appeals close September 15
• Lake CountyFormal appeals close November 30
• Lassen CountyFormal appeals close November 30
• Los Angeles CountyFormal appeals close November 30
• Madera CountyFormal appeals close November 30
• Marin CountyFormal appeals close November 30
• Mariposa CountyFormal appeals close November 30
• Mendocino CountyFormal appeals close November 30
• Merced CountyFormal appeals close November 30
• Modoc CountyFormal appeals close November 30
• Mono CountyFormal appeals close September 15
• Monterey CountyFormal appeals close November 30
• Napa CountyFormal appeals close November 30
• Nevada CountyFormal appeals close November 30
• Orange CountyFormal appeals close November 30
• Placer CountyFormal appeals close September 15
• Plumas CountyFormal appeals close November 30
• Riverside CountyFormal appeals close November 30
• Sacramento CountyFormal appeals close November 30
• San Benito CountyFormal appeals close November 30
• San Bernardino CountyFormal appeals close November 30
• San Diego CountyFormal appeals close November 30
• San Francisco CountyFormal appeals close September 15
• San Joaquin CountyFormal appeals close November 30
• San Luis Obispo CountyFormal appeals close September 15
• San Mateo CountyFormal appeals close November 30
• Santa Barbara CountyFormal appeals close November 30
• Santa Clara CountyFormal appeals close September 15
• Santa Cruz CountyFormal appeals close November 30
• Shasta CountyFormal appeals close November 30
• Sierra CountyFormal appeals close September 15
• Siskiyou CountyFormal appeals close November 30
• Solano CountyFormal appeals close November 30
• Sonoma CountyFormal appeals close November 30
• Stanislaus CountyFormal appeals close November 30
• Sutter CountyFormal appeals close November 30
• Tehama CountyFormal appeals close November 30
• Trinity CountyFormal appeals close November 30
• Tulare CountyFormal appeals close November 30
• Tuolumne CountyFormal appeals close November 30
• Ventura CountyFormal appeals close September 15
• Yolo CountyFormal appeals close November 30
• Yuba CountyFormal appeals close November 30