ZIP code · Bethesda · Maryland · United States

ZIP code 20814 — Bethesda

ZIP code 20814 serves Bethesda, Maryland.

Postal code
20814
Single source Value from one source, not cross-checked.
City
Bethesda
County
Montgomery FIPS 24031
State
Maryland
Country
United States
Coordinates
39.0003, -77.1022 — precision precise (locality)
View on OpenStreetMap
Population
30,822 (ZCTA, ACS 5-year)
Population density
6,912 / sq mi
Land area
4.5 sq mi (11.6 km²) (ZCTA, ACS 5-year)
Median household income
$150,401
Per-capita income
$107,586
Median age
41.3
Households
14,171
Housing units
15,388
Median home value
$976,500
Median gross rent
$2,329 / month
Congressional district
MD-8 (119th Congress)
USDA hardiness zone
7b (5 to 10 °F)
Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
Time zone
America/New_York (UTC−5 / UTC−4 DST)
Area codes
301, 240, 227 (from the nearest rate centre)
Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.

Climate — monthly normals

Warmest month Jul (avg high 88°F), coldest Jan (avg low 26°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F434655687684888679685647
Avg low °F262734445463686659473630
Precip in3.33.24.23.54.44.25.14.44.54.43.33.8

NOAA 1991–2020 climate normals from the nearest station: DALECARLIA RSVR (4.3 mi) · NOAA NCEI

Places in ZIP 20814

Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology

About this page

US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.

GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page