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San Mateo, CA

Full City Profile · California · San Mateo County County

3.0 /5.0
B Good
103,555 Population 8,537/sq mi density
$152,669 Median Income $80,312 per capita
$1,563,200 Home Value $1,638,485 Zillow
$3,079 Median Rent 28.5% income on rent
57°F Avg Temperature 330 sunny days/yr
251 Violent Crime/100K 2,091 property/100K
B
Overall
3.0 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.9 / 5.0
$152,669 median income, 3.0% unemployment
F
Affordability
1.0 / 5.0
$1,563,200 home value, $3,079/mo rent
F
Safety
1.0 / 5.0
251 violent crimes/100K
A+
Education
5.0 / 5.0
57.6% bachelor's degree or higher

Change Over Time (2013–2023)

Population Change
+1.4%
100,657 → 102,098
over 10 years
Annual Pop. Growth
+0.14%
Compound annual growth rate
Median Income Change
+78.2%
$85,669 → $152,669
nominal, not inflation-adjusted
Annual Income Growth
+5.95%
Compound annual growth rate

Population Over Time

Total population for San Mateo across each available Census ACS release.

Median Household Income Over Time

Median household income reported by U.S. Census ACS. Values are nominal (not adjusted for inflation).

Projected 2030

Simple projections extrapolating the 2013–2023 compound annual growth rate forward. These are mathematical extensions of recent trends, not forecasts — real outcomes depend on migration, policy and economic shifts.

Projected Population 2030
103,103
+1,005 from 2023 (102,098)
Projected Median Income 2030
$228,801
+$76,132 from 2023 ($152,669)

Year-by-Year Detail

Year Population YoY % Median Income YoY %
2013 100,657 $85,669
2015 103,272 +2.6% $90,208 +5.3%
2017 104,176 +0.9% $103,399 +14.6%
2019 103,463 -0.7% $124,842 +20.7%
2021 102,200 -1.2% $133,612 +7%
2023 102,098 -0.1% $152,669 +14.3%
Source: U.S. Census ACS 5-Year Estimates (Data Commons). Home value and rent are not yet available historically.