Comparison to Surrounding Areas
The median household income ($-1) for 94128 is less than 94010 ($196,882), 94030 ($163,476), 94066 ($141,272), 94080 ($136,733), San Mateo County ($158,855), and South San Francisco city ($136,578).
| 94128 | $-1 |
| South San Francisco city | $136,578 |
| San Mateo County | $158,855 |
Get Median Household Income for all Zip Codes in California.
The average household income ($-1) for 94128 is less than 94010 ($313,565), 94030 ($215,347), 94066 ($176,521), 94080 ($177,797), San Mateo County ($231,822), and South San Francisco city ($177,602).
| 94128 | $-1 |
| South San Francisco city | $177,602 |
| San Mateo County | $231,822 |
Get Average Household Income for all Zip Codes in California.
The per-capita income for 94128 is $-1. The per capita income ($-1) for 94128 is less than 94010 ($120,330), 94030 ($78,551), 94066 ($64,238), 94080 ($62,585), San Mateo County ($84,288), and South San Francisco city ($62,611).
| 94128 | $-1 |
| South San Francisco city | $62,611 |
| San Mateo County | $84,288 |
Get Per-Capita Income for all Zip Codes in California.
-1% of households make over $200,000 a year. The percent high income households (-1.0%) for 94128 is less than 94010 (49.3%), 94030 (39.7%), 94066 (33.7%), 94080 (31.1%), San Mateo County (39.9%), and South San Francisco city (31.2%).
| 94128 | -1.0% |
| South San Francisco city | 31.2% |
| San Mateo County | 39.9% |
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 | |
|---|---|---|---|---|
| 94128 | $-1 | $-1 | $-1 | $-1 |
| South San Francisco city | $89,781 | $179,214 | $143,459 | $92,037 |
| San Mateo County | $88,226 | $190,774 | $184,789 | $103,766 |
Get Median Household Income by Age of Householder for all Zip Codes in California.
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All income statistics above are the most current, comparable income statistics available from the US Census Bureau and are from the American Community Survey 2024 5-year estimates. You can find this information and other demographics for 94128 on the US Census Bureau’s website. These values are in 2024 inflation-adjusted dollars and were downloaded on 29 January 2026.
Margins of error for the income data are:
| Median Household Income | Average Household Income | Per Capita Income | High Income Households | Median Household Income by Age of Householder | ||||
|---|---|---|---|---|---|---|---|---|
| under 25 | 25 to 44 | 45 to 64 | 65+ | |||||
| 94128 | +/-$-1 | +/-$-1 | +/-$-1 | +/--1.0% | +/-$-1 | +/-$-1 | +/-$-1 | +/-$-1 |
| South San Francisco city | +/-$7,930 | +/-$14,402 | +/-$5,656 | +/-2.3% | +/-$17,562 | +/-$12,256 | +/-$8,131 | +/-$8,487 |
| San Mateo County | +/-$2,851 | +/-$3,575 | +/-$1,230 | +/-0.8% | +/-$12,122 | +/-$4,761 | +/-$5,275 | +/-$3,834 |