Ranking of California Counties By Average Household Income in 2021 (ACS-5Yrs)
Updated on March 13, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, the Average Household Income for California was $119,149. Among all California counties, San Mateo County had the highest average household income ($196,442), followed by Marin County ($195,569), and Santa Clara County ($189,352). On the other hand, the following 3 counties had the lowest average household income: Modoc County ($61,796), Trinity County ($62,784), and Imperial County ($66,973).
The chart below shows the top 10 California counties with high average household income, and the table below shows the ranking of all California counties.
You can also see similar information for other states and for the United States.
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Related Topics: California ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census Bureau.
Ranking of California Counties By Average Household Income in 2021
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| Rank | County | Average Household Income ($) |
|---|---|---|
| 1 | San Mateo County | 196442 |
| 2 | Marin County | 195569 |
| 3 | Santa Clara County | 189352 |
| 4 | San Francisco County | 178742 |
| 5 | Contra Costa County | 151026 |
| 6 | Alameda County | 148638 |
| 7 | Napa County | 136193 |
| 8 | Orange County | 134820 |
| 9 | Santa Cruz County | 133176 |
| 10 | Placer County | 127176 |
| 11 | Ventura County | 123929 |
| 12 | El Dorado County | 123342 |
| 13 | Sonoma County | 121206 |
| 14 | Santa Barbara County | 120192 |
| 15 | San Benito County | 118804 |
| 16 | San Diego County | 118474 |
| 17 | Alpine County | 114903 |
| 18 | Solano County | 111110 |
| 19 | Monterey County | 110295 |
| 20 | Yolo County | 109841 |
| 21 | Los Angeles County | 109499 |
| 22 | San Luis Obispo County | 107113 |
| 23 | Nevada County | 103903 |
| 24 | Riverside County | 100004 |
| 25 | Sacramento County | 99141 |
| 26 | San Joaquin County | 97178 |
| 27 | Sutter County | 91829 |
| 28 | San Bernardino County | 91380 |
| 29 | Amador County | 91269 |
| 30 | Calaveras County | 89521 |
| 31 | Stanislaus County | 89007 |
| 32 | Tuolumne County | 88355 |
| 33 | Mono County | 87835 |
| 34 | Butte County | 84766 |
| 35 | Shasta County | 84215 |
| 36 | Fresno County | 83892 |
| 37 | Madera County | 83780 |
| 38 | Plumas County | 80975 |
| 39 | Lake County | 80886 |
| 40 | Colusa County | 80856 |
| 41 | Kern County | 80195 |
| 42 | Sierra County | 79957 |
| 43 | Merced County | 79592 |
| 44 | Tehama County | 79138 |
| 45 | Inyo County | 78816 |
| 46 | Mendocino County | 78750 |
| 47 | Kings County | 77920 |
| 48 | Yuba County | 77817 |
| 49 | Tulare County | 77575 |
| 50 | Humboldt County | 75434 |
| 51 | Lassen County | 73074 |
| 52 | Glenn County | 70801 |
| 53 | Mariposa County | 70052 |
| 54 | Del Norte County | 69915 |
| 55 | Siskiyou County | 67989 |
| 56 | Imperial County | 66973 |
| 57 | Trinity County | 62784 |
| 58 | Modoc County | 61796 |