South San Francisco, CA

Single-footprint Census roll-up for South San Francisco, CA: 1 USPS ZIP, population 63,975. Open the primary ZIP for household income, housing tenure, and commute from ACS 2023 5-Year Estimates.

U.S. Census Bureau, SimpleMaps US ZIP Code Database, delivery-area ZIP coverage

ACS city ledger plate

Sheet SOUTH-SAN-FRANCISCO-CA · South San Francisco, CA 1 ZIPs · 63,975 pop · #1279/25278 · San Mateo County

INC-TOP · RANK-TOP · BELOW-PEER · BOOK-ONE · OWN-LOW · POP-SMALL · SPREAD-UNK · HOME-TOP

  • INC-TOP $136,733
  • RANK-TOP #1279/25278
  • BELOW-PEER under San Bruno
  • BOOK-ONE 1 ZIP
  • OWN-LOW 59% owners
  • POP-SMALL 63,975
  • SPREAD-UNK Single-ZIP book
  • HOME-TOP $1,188,700

Nearest income peer: San Bruno, CA (+ $4,539 income $)

Instrument codes from this city’s ACS household income, national rank, county-peer gap, ZIP book, owner tenure, population scale, intra-city income spread, and home-value band, not a moving recommendation.

Income neighbourhood around South San Francisco

Lowest/highest poles plus county-sharing cities nearest South San Francisco on average ZIP median household income. Full ladder: /cities.

median HH income

What this shows County-sharing peers only, not the full US city board. Open a near peer when the gap is small; open the poles when the mosaic is wide.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2026-08-25

National city placement

According to ACS 5-Year Estimates, South San Francisco, CA sits among US cities with a top-decile household income, on a small-city population base, across a single-ZIP footprint.

Top 5%
household income vs 25,278 US cities
63,975
city population (Census)
1
USPS ZIP codes covered
$136,733
avg ZIP median income

Income percentile ranks this city's average ZIP median household income against 25,278 US cities with ACS income on at least one ZIP. Scale and ZIP-spread words come from Census population and USPS ZIP coverage.

High-income footprint on only 1 ZIP: the city page and the ZIP page nearly coincide. Headline income $136,733 and home value $1,188,700 should be read as near-neighborhood numbers ; bachelor's attainment averages 40.8%.

Owner-occupancy is comparatively low (58.9%) for this income tier, rent $2,809 may matter more than the home-value average.

Within California, Mission Viejo is the closest lower-income city and Gilroy the closest higher-income city by average ZIP household income. Their 2 and 1 ZIP footprints are the immediate statewide comparison set for South San Francisco.

Population concentration

South San Francisco reads through its lone ZIP, 94080

63,975 ACS residents, one ZIP: 94080 is not the leading code inside South San Francisco, it is the only one on file. Treat the ZIP page as the primary source for anything below the city-wide total.

Census ZBP business roll-up

Dense ZBP book packed into South San Francisco's one ZIP

Citywide ZBP: 2,268 establishments, 62,055 employees , annual payroll $9,795,142k (~35 establishments per 1,000 residents) across 1 of 1 ZIPs. Peak business ZIP 94080 (2,268 units) ; leading NAICS Professional, scientific, and technical services (295) · also Accommodation and food services · Wholesale trade .

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ZIP Codes in South San Francisco, CA

These ZIP codes sit in San Mateo County, which covers 30 ZIP codes in all; 1 of them fall in South San Francisco. See the San Mateo County roll-up →

South San Francisco sits in the lower half of San Mateo County on income: San Mateo, Redwood City and Palo Alto report more, and only Daly City reports less. San Carlos marks the far end of that range at $240,074, 76% above South San Francisco.

ZIP Code Population Median income Establishments Density
94080 63,975 $136,733 2,268 2,388

South San Francisco roll-ups here are for informational purposes only and do not constitute financial or relocation advice. ACS and Census ZBP figures are estimates; confirm the current table against Census before a money or move decision involving South San Francisco, .