PlainZIP

San Carlos, CA

Single-footprint Census roll-up for San Carlos, CA: 1 USPS ZIP, population 29,166. 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 SAN-CARLOS-CA · San Carlos, CA 1 ZIPs · 29,166 pop · #120/25278 · San Mateo County

INC-TOP · RANK-TOP · ABOVE-PEER · BOOK-ONE · OWN-MID · POP-SMALL · SPREAD-UNK · HOME-TOP

  • INC-TOP $240,074
  • RANK-TOP #120/25278
  • ABOVE-PEER over Menlo Park
  • BOOK-ONE 1 ZIP
  • OWN-MID 69% owners
  • POP-SMALL 29,166
  • SPREAD-UNK Single-ZIP book
  • HOME-TOP $2,000,001

Nearest income peer: Menlo Park, CA ( $23,473 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 San Carlos

Lowest/highest poles plus county-sharing cities nearest San Carlos 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, San Carlos, CA sits among US cities with a top-decile household income, on a small-city population base, across a single-ZIP footprint.

Top 1%
household income vs 25,278 US cities
29,166
city population (Census)
1
USPS ZIP codes covered
$240,074
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 $240,074 and home value $2,000,000+ should be read as near-neighborhood numbers ; bachelor's attainment averages 70.5%.

Owner-occupancy sits in a mixed band (68.6%) - check the ZIP page's tenure split before treating San Carlos as a pure owner town.

Within California, Danville is the closest lower-income city and La Canada Flintridge the closest higher-income city by average ZIP household income. Their 2 and 1 ZIP footprints are the immediate statewide comparison set for San Carlos.

Population concentration

San Carlos reads through its lone ZIP, 94070

29,166 ACS residents, one ZIP: 94070 is not the leading code inside San Carlos, 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 San Carlos's one ZIP

Citywide ZBP: 1,357 establishments, 20,055 employees , annual payroll $2,259,199k (~47 establishments per 1,000 residents) across 1 of 1 ZIPs. Peak business ZIP 94070 (1,357 units) ; leading NAICS Professional, scientific, and technical services (288) · also Construction · Health care and social assistance .

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ZIP Codes in San Carlos, CA

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

No other city sharing San Mateo County reports a higher average ZIP median income than San Carlos. San Mateo, Daly City and Redwood City sit below it, so a household comparing this county on income alone starts here. Daly City marks the far end of that range at $125,011, 48% below San Carlos.

ZIP Code Population Median income Establishments Density
94070 29,166 $240,074 1,357 1,836
How we build city roll-ups · Guide: reading ZIP code data · BLS wages

San Carlos 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 San Carlos, .