San Francisco-Oakland-Berkeley, CA · California

San Mateo County

745,100 residents1,986 permits TTM$156,000 median HHI30 ZIP codesUpdated April 16, 2026
Investor first look

Median home value

$1,494,500

ACS 5-Year

Cap rate proxy

2.3%

FMR × 0.65 ÷ Home Value

Rent-to-income

22.3%

HUD FMR ÷ ACS HHI

Net migration

+2.72%

IRS SOI

Permits (TTM)

1,986

Census BPS

Climate risk

99.2

FEMA NRI (0–100)

ZIP code breakdown30 ZIP codes
ZIPMedian home valueRent (FMR 2BR)Gross yieldCap rateRent gap
940143.9%
940803.5%
940633.5%
94020$1,494,500$4,0303.2%3.5%28.2%
940443.3%
940053.1%
944013.0%
940662.9%
940602.9%
940652.8%
940152.7%
944042.7%
940382.4%
944032.4%
940182.3%
94021county est.2.3%
940372.3%
94074county est.2.3%
94128county est.2.3%
940192.2%
940302.2%
940612.2%
940702.0%
944021.8%
940021.7%
940251.7%
940621.5%
940101.3%
94028$1,494,500$3,8203.1%0.8%24.3%
940270.4%

Sort by any column. Click a ZIP for detail. Rent gap: green = HUD FMR above market rent.

Demographics

Owner-occupied

59.1%

Census ACS

Vacancy rate

7.4%

Census ACS

Bachelor's degree +

53.1%

Census ACS

Rent burdened

46.8%

Census ACS (>30% income)

Median age

40.6

Census ACS

Data sources
U.S. Census Bureau — American Community Survey 5-Year Estimates
U.S. Census Bureau — Building Permits Survey
U.S. Department of Housing and Urban Development — Fair Market Rents / Small Area Fair Market Rents (SAFMR)
Internal Revenue Service — Statistics of Income Migration Data
FEMA — National Risk Index
Last updated: April 16, 2026