New Horizons Genealogy

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Free California Genealogy Records Online

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California Genealogy By County

CountyCounty SeatDate FormedOrigin
Alameda CountyOakland1853Contra Costa and Santa Clara
Alpine CountyMarkleeville1864Amador, El Dorado, Calaveras, Mono and Tuolumne
Amador CountyJackson1854Calaveras
Butte CountyOroville1850Original
Calaveras CountySan Andreas1850Original
City and County of San FranciscoSan Francisco1850Original
Colusa CountyColusa1850Original
Contra Costa CountyMartinez1850Original
Del Norte CountyCrescent City1857Klamath
El Dorado CountyPlacerville1850Original
Fresno CountyFresno1856Mariposa, Merced and Tulare
Glenn CountyWillows1891Colusa
Humboldt CountyEureka1853Trinity
Imperial CountyEl Centro1907San Diego
Inyo CountyIndependence1866Mono and Tulare
Kern CountyBakersfield1866Los Angeles and Tulare
Kings CountyHanford1893Tulare
Lake CountyLakeport1861Napa
Lassen CountySusanville1864Plumas and Shasta, and now defunct Lake County, Nevada
Los Angeles CountyLos Angeles1850Original
Madera CountyMadera1893Mariposa
Marin CountySan Rafael1850Original
Mariposa CountyMariposa1850Original
Mendocino CountyUkiah1850Original
Merced CountyMerced1855Mariposa
Modoc CountyAlturas1874Siskiyou
Mono CountyBridgeport1861Calaveras, Fresno and Mariposa
Monterey CountySalinas1850Original
Napa CountyNapa1850Original
Nevada CountyNevada City1851Yuba
Orange CountySanta Ana1889Los Angeles
Placer CountyAuburn1851Sutter and Yuba
Plumas CountyQuincy1854Butte
Riverside CountyRiverside1893San Bernardino and San Diego
Sacramento CountySacramento1850Original
San Benito CountyHollister1874Monterey
San Bernardino CountySan Bernardino1853Los Angeles
San Diego CountySan Diego1850Original
San Diego CountySan Diego1850Original
San Francisco CountySan Francisco1850Original
San Joaquin CountyStockton1850Original
San Luis Obispo CountySan Luis Obispo1850Original
San Mateo CountyRedwood City1856San Francisco and Santa Cruz
Santa Barbara CountySanta Barbara1850Original
Santa Clara CountySan Jose1850Original
Santa Cruz CountySanta Cruz1850Original
Shasta CountyRedding1850Original
Sierra CountyDownieville1852Yuba
Siskiyou CountyYreka1852Shasta and Klamath
Solano CountyFairfield1850Original
Sonoma CountySanta Rosa1850Original
Stanislaus CountyModesto1854Tuolumne
Sutter CountyYuba City1850Original
Tehama CountyRed Bluff1856Butte, Colusa and Shasta
Trinity CountyWeaverville1850Original
Tulare CountyVisalia1852Mariposa
Tuolumne CountySonora1850Original
Ventura CountyVentura1872Santa Barbara
Yolo CountyWoodland1850Original
Yuba CountyMarysville1850Original

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