ZIP code · Edgewood · Maryland · United States

ZIP code 21040 — Edgewood

ZIP code 21040 serves Edgewood, Maryland.

Postal code
21040
Single source Value from one source, not cross-checked.
City
Edgewood
County
Harford FIPS 24025
State
Maryland
Country
United States
Coordinates
39.4277, -76.3055 — precision precise (locality)
View on OpenStreetMap
Population
25,290 (ZCTA, ACS 5-year)
Population density
2,577 / sq mi
Land area
9.8 sq mi (25.4 km²) (ZCTA, ACS 5-year)
Median household income
$86,925
Per-capita income
$37,072
Median age
36.8
Households
9,870
Housing units
10,211
Median home value
$231,100
Median gross rent
$1,420 / month
Congressional district
MD-1 (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
443, 410, 667
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 86°F), coldest Jan (avg low 25°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F424453657382868478675646
Avg low °F252733435362686659473730
Precip in3.32.84.13.54.04.34.84.24.84.23.33.9

NOAA 1991–2020 climate normals from the nearest station: ABERDEEN PHILLIPS FLD (7.8 mi) · NOAA NCEI

Places in ZIP 21040

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