California County Codes & Other Resources

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The following headings require some explanations, and they are:

County & Address:Using this address will get your letter to the County Recorder. The highlighted County name will take you to the County's main GenWeb Page.

Date Formed:The date the parent or original county was formed.

Parent Counties:These are the names of the counties from which the current county was formed.

Birth, Marriage & Death: The dates listed in this column are the first available dates for these records within the county, listed respectively. It's important to note that only a small percentage of the births and deaths were registered between 1850 and 1905, so don't get discouraged if no record exists.

Land, Probate & Court: The dates listed here are the first available dates for these records within the county, listed respectively.

Links: Vitals & Court This link will take you to a page setting forth infomration about the County's vital and court records.

County Code	County Name County Recorder's Address	Date Formed Parent Counties	Birth Marriage Death	Land Probate Court	Links:
01	Alameda Courthouse, Rm. 100 1225 Fallon Street Oakland 94612-4280	1853 Contra Costa Santa Clara	1919 1853 1853	1853 1853 1853
02	Alpine P. O. Box 217 Markleeville 96120	1864 Eldorado, Amador Calaveras	1900 1900 1900	1900 1900 1900
03	Amador 108 Court Street Jackson 95642	1854 Calaveras	1854 1854 1854	1854 1854 1854
04	Butte 25 County Center Dr. Oroville 95965	1850 Original County	1850 1850 1850	1850 1850 1850
05	Calaveras Government Center San Andreas 95249	1850 Original County	1860 1882 1882	1852 1866 1866
06	Colusa 546 Jay Street Colusa 95932	1850 Original County	1850 1850 1850	1850 1850 1850
07	Contra Costa P. O. Box 350 Martinez 94553	1850 Original County	1850 1850 1850	1850 1850 1850
08	Del Norte 457 F Street Cresent City 95531	1857 Klamath	1857 1858 1858	1858 1858 1858
09	El Dorado 360 Fair Lane Placerville 95667	1850 Original County	1905 1905 1905	1850 1850 1850
10	Fresno P. O. Box 766 Fresno 93721	1856 Merced Mariposa	1900 1900 1900	1860 1860 1860
11	Glenn P. O. Box 391 Willows 95988	1891 Colusa	1891 1891 1891	1891 1891 1891
12	Humboldt 825 5th Street Eureka 95501	1853 Trinity	1886 1886 1886	1853 1853 1853
13	Imperial P. O. Box 1560 El Centro 92243	1907 San Diego	1907 1907 1907	1907 1907 1907
14	Inyo P. O. Drawer F Independence 93526	1866 Tulare	1905 1866 1905	1866 1866 1866
15	Kern 1655 Chester Bakersfield 93301	1866 Tulare, Los Angeles	1866 1866 1866	1866 1866 1866
16	Kings 1400 Lacey Blvd. Hanford 93280	1893 Tulare	1893 1893 1893	1893 1893 1893	Marriages
17	Lake 255 North Forbes Street Lakeport 95453	1861 Napa	1867 1867 1867	1867 1867 1867
18	Lassen Courthouse- Lassen Street Susanville 96130	1864 Plumas Shasta	1864 1864 1864	1864 1864 1864
19	Los Angeles P. O. Box 120 Los Angeles 90053-0120	1850 Original County	1850 1850 1850	1850 1850 1850
20	Madera 209 West Yosemite Madera 93637	1893 Fresno	1893 1893 1893	1893 1893 1893	Vitals
21	Marin 3501 Civic Center, Rm. 290 San Rafel 94903-4177	1850 Original County	1850 1850 1850	1850 1850 1850
22	Mariposa P. O. Box 35 Mariposa 95338	1850 Original County	1850 1850 1850	1850 1850 1850	Deaths 1873-1904
23	Mendocino P. O. Box 148 Ukiah 95482	1850 Original County	1850 1850 1850	1850 1872 1858
24	Merced 2222 M Street Merced 95340	1855 Mariposa	1855 1855 1855	1855 1855 1855
25	Modoc 205 South East Street Alturas 96101	1874 Siskiyou	1874 1874 1874	1874 1874 1874
26	Mono P. O. Box 537 Bridgeport 93517	1861 Fresno Calaveras	1864 1864 1864	1864 1864 1864
27	Monterey P. O. Box 29 Salinas 93901	180 Original County	1850 1850 1850	1850 1850 1850
28	Napa P. O. Box 298 Napa 95488	1850 Original County	1850 1850 1850	1850 1850 1850
29	Nevada P. O. Box 6232 Nevada City 95959	1851 Yuba	1873 1856 1873	1856 1880 1880
30	Orange P. O. Box 238 Santa Ana 92701	1889 Los Angeles	1889 1889 1889	1889 1889 1889
31	Placer P. O. Box 5228 Auburn 95604	1851 Yuba Sutter	1851 1851 1851	1851 1851 1851
32	Plumas P. O. Box 10706 Quincy 95971	1854 Butte	1860 1860 1860	1854 1860 1860
33	Riverside P. O. Box 751 Riverside 92502	1893 San Diego San Bernardino	1893 1893 1893	1893 1893 1893
34	Sacramento P. O. Box 839 Metro Main Station Sacramento 95814-1207	1850 Original County	1850 1850 1850	1850 1850 1850	Vitals
35	San Benito Courthouse - Rm. 206 Hollister 95023	1874 Monterey	1874 1874 1874	1874 1874 1874
36	San Bernardino 222 West Hospitality Lane San Bernardino 92415-0022	1853 Los Angeles	1853 1887 1853	1853 1853 1853
37	San Diego P. O. Box 1750 San Diego 92112	1850 Original County	1850 1850 1850	1850 1850 1850
38	San Francisco City Hall, Rm. 167 San Francisco 94102	1850 Original County	1906 1906 1906	1906 1906 1906	Vitals
39	San Joaquin P. O. Box 1968 Stockton 95201-1968	1850 Original County	1851 1851 1851	1851 1851 1851
40	San Luis Obispo 1144 Montery Suite C San Luis Obispo 94308	1850 Original County	1850 1850 1850	1850 1854 1854
41	San Mateo 2200 Broadway Redwood City 94063	1856 San Francisco	1866 1856 1873	1856 1880 1866
42	Santa Barbara P. O. Box 159 Santa Barbara 93102-0159	1850 Original County	1850 1873 1850	1850 1850 1850
43	Santa Clara 70 West Hedding East Wing, First Floor San Jose 95110	1850 Original County	1850 1850 1850	1850 1850 1850
44	Santa Cruz 701 Ocean, Rm 230 Santa Cruz 95060	1850 Original County	1873 1852 1873	1850 1850 18507
45	Shasta 1500 Court Street Room 102 Redding 96001-1679	1850 Original County	1850 1850 1850	1850 1880 1880
46	Sierra P. O. Drawer D Downieville 95936	1852 Yuba	1852 1852 1852	1852 1852 1852
47	Siskiyou P. O. Box 8 Yreka 96097	1852 Klamath Shasta	1852 1852 1852	1852 1852 1852
48	Solano 580 Texas Street Fairfield 94533	1850 Original County	1850 1850 1850	1850 1850 1850
49	Sonoma 585 Fiscal Drive Room 103F Santa Rosa 95403	1850 Original County	1850 1850 1850	1850 1850 1850
50	Stanislaus 912 11th Street Modesto 95353	1854 Tuolumne	1854 1854 1854	1854 1854 1854
51	Sutter 433 Second Street Yuba City 95991	1850 Original County	1850 1850 1850	1850 1850 1850
52	Tehama P. O. Box 250 Red Bluff 96080	1856 Colusa Butte Shasta	1889 1856 1889	1856 1856 1856
53	Trinity P. O. Drawer 1258 Weaverville 96093-1258	1850 Original County	1889 1856 1889	1856 1856 1856
54	Tulare Courthouse, Rm. 203 Visalia 93291-4593	1852 Mariposa	1852 1873 1852	1852 1852 1852	Vitals Probates Marriages
55	Tuolumne 2 South Green St. Sonora 95370	1850 Original County	1858 18507 1859	1850 1850 1850
56	Ventura 800 South Victoria Ventura 93009	1872 Santa Barbara	1873 1873 1873	1871 1873 1873
57	Yolo P. O. Box 105 Woodland 95776	1850 Original County	1850 1850 1850	1850 1850 1850
58	Yuba 935 14th Street Marysville 95902	1850 Original County	1850 1865 1850	1850 1850 1850

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