Comparison to Surrounding Areas
The median household income ($101,994) for 94931 is less than the median household income for 94951 ($106,332), 94952 ($117,343), 95472 ($108,925), Sonoma County ($104,674), Cotati city ($110,750), and Penngrove CDP ($107,147). But it's more than 94928 ($99,280) and 95407 ($82,863).
| 94931 | $101,994 |
| Cotati city | $110,750 |
| Penngrove CDP | $107,147 |
| Sonoma County | $104,674 |
Get Median Household Income for all Zip Codes in California.
The average household income ($128,205) for 94931 is less than the average household income for 94951 ($165,110), 94952 ($156,832), 95472 ($148,903), Sonoma County ($142,354), Cotati city ($130,296), and Penngrove CDP ($185,631). But it's more than 94928 ($126,089) and 95407 ($104,319).
| 94931 | $128,205 |
| Cotati city | $130,296 |
| Penngrove CDP | $185,631 |
| Sonoma County | $142,354 |
Get Average Household Income for all Zip Codes in California.
The per-capita income for 94931 is $55,275. The per capita income ($55,275) for 94931 is less than the per capita income for 94951 ($70,956), 94952 ($65,835), 95472 ($61,231), Sonoma County ($56,640), Cotati city ($56,032), and Penngrove CDP ($84,058). But it's more than 94928 ($46,113) and 95407 ($33,207).
| 94931 | $55,275 |
| Cotati city | $56,032 |
| Penngrove CDP | $84,058 |
| Sonoma County | $56,640 |
Get Per-Capita Income for all Zip Codes in California.
18.3% of households make over $200,000 a year. The percent high income households (18.3%) for 94931 is less than the percent high income households for 94951 (28.1%), 94952 (25.8%), 95472 (24.6%), Sonoma County (20.7%), Cotati city (19.3%), and Penngrove CDP (32.9%). But it's more than 94928 (16.0%) and 95407 (11.4%).
| 94931 | 18.3% |
| Cotati city | 19.3% |
| Penngrove CDP | 32.9% |
| Sonoma County | 20.7% |
Get High Income Households for all Zip Codes in California.
| under 25 years | 25 to 44 years | 45 to 64 years | 65 years and over | |
|---|---|---|---|---|
| 94931 | $51,226 | $121,683 | $122,208 | $67,583 |
| Cotati city | $49,570 | $125,114 | $118,611 | $61,172 |
| Penngrove CDP | $-1 | $-1 | $191,917 | $72,969 |
| Sonoma County | $67,041 | $114,241 | $127,091 | $78,329 |
Get Median Household Income by Age of Householder for all Zip Codes in California.
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All income statistics above are the most current, comparable income statistics available from the US Census Bureau and are from the American Community Survey 2024 5-year estimates. You can find this information and other demographics for 94931 on the US Census Bureau’s website. These values are in 2024 inflation-adjusted dollars and were downloaded on 29 January 2026.
Margins of error for the income data are:
| Median Household Income | Average Household Income | Per Capita Income | High Income Households | Median Household Income by Age of Householder | ||||
|---|---|---|---|---|---|---|---|---|
| under 25 | 25 to 44 | 45 to 64 | 65+ | |||||
| 94931 | +/-$21,080 | +/-$13,956 | +/-$5,122 | +/-4.6% | +/-$973 | +/-$15,168 | +/-$21,567 | +/-$14,686 |
| Cotati city | +/-$19,380 | +/-$14,508 | +/-$5,260 | +/-4.7% | +/-$27,792 | +/-$13,689 | +/-$8,395 | +/-$36,146 |
| Penngrove CDP | +/-$35,310 | +/-$39,290 | +/-$16,160 | +/-9.2% | +/-$-1 | +/-$-1 | +/-$73,583 | +/-$48,602 |
| Sonoma County | +/-$2,030 | +/-$2,942 | +/-$1,078 | +/-0.7% | +/-$13,578 | +/-$3,864 | +/-$4,645 | +/-$2,813 |