What are the richest counties in California?

Santa Clara County ($164,281), San Mateo County ($158,855) and Marin County ($149,091) had the highest median household income in California in the 2020–24 survey.

Data as of 2024 · updated November 5, 2026

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All 58 ranked California counties

California counties ranked by median household income
Rank	County	Median household income 2020–24	Change since 2016–20	Residents
1	Santa Clara County	$164,281	+25.5%	1,914,391
2	San Mateo County	$158,855	+24.0%	743,568
3	Marin County	$149,091	+22.5%	253,694
4	San Francisco County	$140,970	+18.3%	826,079
5	Alameda County	$129,367	+23.3%	1,636,630
6	Contra Costa County	$127,229	+22.3%	1,170,070
7	Orange County	$116,289	+23.1%	3,149,507
8	Placer County	$115,998	+23.8%	442,081
9	San Benito County	$114,394	+33.3%	70,082
10	Napa County	$111,471	+20.9%	132,949
11	Santa Cruz County	$111,093	+23.5%	258,852
12	Ventura County	$109,797	+23.0%	830,851
13	El Dorado County	$108,845	+30.0%	192,323
14	San Diego County	$106,268	+28.9%	3,282,248
15	Alpine County	$105,521	+23.1%	1,043
16	Sonoma County	$104,674	+21.5%	486,444
17	Solano County	$100,401	+18.6%	455,376
18	Mono County	$99,415	+53.1%	12,505
19	Santa Barbara County	$98,161	+24.4%	442,065
20	San Luis Obispo County	$97,446	+25.0%	282,367
21	Monterey County	$97,230	+26.4%	433,729
22	Riverside County	$93,074	+31.6%	2,544,916
23	San Joaquin County	$92,179	+34.3%	823,815
24	Sacramento County	$92,175	+30.4%	1,618,460
25	Yolo County	$91,752	+24.4%	224,410
26	Los Angeles County	$90,112	+26.3%	9,694,934
27	Nevada County	$89,882	+31.5%	101,911
28	Amador County	$88,044	+35.1%	41,876
29	San Bernardino County	$85,478	+30.0%	2,224,091
30	Stanislaus County	$81,468	+29.6%	557,719
31	Sutter County	$79,704	+25.5%	98,787
32	Calaveras County	$78,647	+17.3%	46,605
33	Tuolumne County	$77,404	+27.9%	53,160
34	Madera County	$76,627	+23.7%	167,927
35	Yuba County	$76,373	+28.5%	88,691
36	Colusa County	$75,672	+27.3%	21,836
37	Fresno County	$74,201	+29.9%	1,035,456
38	Inyo County	$73,991	+24.8%	18,158
39	Shasta County	$72,636	+27.1%	181,648
40	Tulare County	$71,300	+35.7%	485,146
41	Kings County	$70,995	+15.3%	154,327
42	Kern County	$70,210	+28.0%	927,068
43	Mariposa County	$68,412	+34.2%	16,918
44	Mendocino County	$68,092	+28.7%	88,122
45	Butte County	$67,928	+23.6%	209,211
46	Lassen County	$67,403	+18.3%	28,117
47	Glenn County	$67,139	+29.9%	28,141
48	Del Norte County	$67,058	+34.2%	26,410
49	Plumas County	$66,031	+15.4%	18,583
50	Merced County	$65,510	+16.3%	297,260
51	Tehama County	$63,784	+30.5%	64,665
52	Sierra County	$63,355	+21.6%	3,098
53	Humboldt County	$61,160	+24.2%	131,647
54	Lake County	$60,621	+23.1%	67,772
55	Modoc County	$59,455	+16.0%	8,426
56	Siskiyou County	$59,095	+24.7%	42,013
57	Imperial County	$57,681	+24.8%	181,411
58	Trinity County	$53,002	+26.9%	15,720

How this is ranked

Median household income from the Census Bureau's American Community Survey 5-year estimates (2020–24). Survey estimates carry margins of error, so counties a few hundred dollars apart may not really differ. Counties with fewer than 1,000 residents, or without a figure for the same period as the others, are not ranked.

Source: U.S. Census Bureau, American Community Survey 5-year estimates. Figures come from public federal statistics and are informational only, not investment advice. Check the source before relying on a number. Methodology: how ranks and figures are built. More on every layer: data sources and licences.

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Questions

Which county in California has the highest median household income?

Santa Clara County: $164,281, ahead of San Mateo County ($158,855) and Marin County ($149,091), of 58 California counties ranked.

How is this ranking calculated?

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Median household income in other states

Across the U.S.