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ZIP Code 94021

San Mateo, California

FIPS 94021

Juniper

ZIP Code 94021 is in the bottom 1% nationally for FEMA risk score. It also sits in the 98th percentile nationally for median home value. And it sits in the bottom 21% nationally for price-to-income ratio.

Median Home Value

$1,073,100

Higher than 98% of U.S. ZIP codes

FEMA Risk Score

99.4

Higher than 99% of U.S. ZIP codes

The basics

Total Population

321

Median Age

46.8

Home values & property tax

Ranked against U.S. ZIP codes.

Median Home Value

$1,073,100

Higher than 98%

Median Property Tax

$8,490

Effective Tax Rate

1%

Cost of living & affordability

Ranked against U.S. ZIP codes.

Price-to-Income Ratio

4.29

Higher than 79%

Climate & weather

Ranked against U.S. ZIP codes.

Summer Avg High (°F)

78.9

Winter Avg Low (°F)

40.4

Avg Temperature (°F)

57.1

Hot Days/yr (>90°F)

13.1

Freezing Days/yr (<32°F)

11.2

Annual Precipitation (in)

42.2

Annual Snowfall (in)

0

Flood & disaster risk

Ranked against U.S. ZIP codes.

FEMA Risk Score

99.4

Higher than 99%

EAL Flood/Coastal per $1K

0

The full report

Six pillars — each with percentile benchmarks, 16-year trends, and per-metric detail.

  • People

  • Work & Money

  • Housing

  • Amenities

  • Environment & Risk

ZIP Code 94021: frequently asked questions

What is the median home value in ZIP Code 94021?
The median home value in ZIP Code 94021 is $1,073,100, higher than 98% of U.S. ZIP codes.
How much is property tax in ZIP Code 94021?
The median annual property tax in ZIP Code 94021 is $8,490, an effective rate of 1% of home value.
Is ZIP Code 94021 expensive to live in?
Homes in ZIP Code 94021 cost about 4.29× the median household income, higher than 79% of U.S. ZIP codes.
What is the weather like in ZIP Code 94021?
ZIP Code 94021 averages 57.1°F year-round, summer highs near 78.9°F, winter lows around 40.4°F (NOAA 1991–2020 normals).
Is ZIP Code 94021 at risk of flooding or natural disasters?
ZIP Code 94021's FEMA National Risk Index score is 99.4 (higher than 99% of U.S. ZIP codes). Its greatest modeled natural hazard is earthquake. Modeled coastal-flood loss is negligible.

Sources: U.S. Census ACS, FEMA National Risk Index, FHFA House Price Index, OpenStreetMap, EPA. Explore the map →