San Mateo, CA
Single-footprint Census roll-up for San Mateo, CA: 4 USPS ZIPs, population 131,801. 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-MATEO-CA · San Mateo, CA 4 ZIPs · 131,801 pop · #554/25278 · San Mateo County
INC-TOP · RANK-TOP · PHOTO-FINISH · BOOK-FEW · OWN-LOW · POP-MID · SPREAD-MOD · HOME-TOP
- INC-TOP $165,500
- RANK-TOP #554/25278
- PHOTO-FINISH ≈ Millbrae
- BOOK-FEW 4 ZIPs
- OWN-LOW 51% owners
- POP-MID 131,801
- SPREAD-MOD 94401→94404
- HOME-TOP $1,661,300
Nearest income peer: Millbrae, CA ( $2,024 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 Mateo
Lowest/highest poles plus county-sharing cities nearest San Mateo on average ZIP median household income. Full ladder: /cities.
- Daly City · lowest
Daly City · lowest
$125,011 median HH income
- Palo Alto · near
Palo Alto · near
$151,609 median HH income
- Pacifica · near
Pacifica · near
$160,408 median HH income
- Millbrae · near
Millbrae · near
$163,476 median HH income
- San Mateo · this city
San Mateo · this city
$165,500 median HH income
- Redwood City · near
Redwood City · near
$178,061 median HH income
- San Carlos · highest
San Carlos · highest
$240,074 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.
National city placement
According to ACS 5-Year Estimates, San Mateo, CA sits among US cities with a top-decile household income, on a mid-size population base, across a handful of delivery areas.
- Top 2%
- household income vs 25,278 US cities
- 131,801
- city population (Census)
- 4
- USPS ZIP codes covered
- $165,500
- 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 4 ZIPs: the city page and the ZIP page nearly coincide. Headline income $165,500 and home value $1,661,300 should be read as near-neighborhood numbers ; bachelor's attainment averages 62.4%.
Owner-occupancy is comparatively low (51.4%) for this income tier, rent $3,257 may matter more than the home-value average.
Within California, El Dorado Hills is the closest lower-income city and Hermosa Beach the closest higher-income city by average ZIP household income. Their 1 and 1 ZIP footprints are the immediate statewide comparison set for San Mateo.
Within-city ZIP comparison
Where the ZIP codes inside San Mateo differ
San Mateo's city average masks two linked splits. Median household income runs from $122,227 in ZIP 94401 to $192,332 in ZIP 94404, while home values span $1,184,500 in 94401 to $2,000,000+ in 94402. Compare the endpoint ZIPs before treating the city-level number as a neighborhood-level answer.
- Income high-to-low ratio
- 1.6×
- Home-value high-to-low ratio
- 1.7×
- Poverty-rate spread
- 7.9 points
94401 to 94404
94401 to 94402
94404 to 94401
Derived from the published ACS 2023 ZIP-level records shown on this site. A high-to-low ratio compares the highest and lowest available ZIP values; it is not a score or forecast.
Population concentration
San Mateo residents split across a short ZIP set
No ZIP owns San Mateo: the largest, 94403, is only about 30% of 131,801 residents across 4 codes. Compare at least two ZIPs before treating the city roll-up as a neighborhood answer.
Census ZBP business roll-up
Employer-heavy short list in San Mateo
Citywide ZBP: 4,301 establishments, 99,273 employees , annual payroll $17,197,188k (~33 establishments per 1,000 residents) across 4 of 4 ZIPs. Peak business ZIP 94403 (1,204 units) ; leading NAICS Professional, scientific, and technical services (758) · also Health care and social assistance · Accommodation and food services .
ZIP Codes in San Mateo, CA
These ZIP codes sit in San Mateo County, which covers 30 ZIP codes in all; 4 of them fall in San Mateo. See the San Mateo County roll-up →
San Mateo lands mid-pack among the 11 cities sharing San Mateo County: Redwood City, Burlingame and Menlo Park earn more and Daly City, Palo Alto and South San Francisco earn less. San Carlos marks the far end of that range at $240,074, 45% above San Mateo.
Side-by-side: Compare 94403 vs 94401 →
San Mateo 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 Mateo, .