ZIP code · Brooklyn · Maryland · United States

ZIP code 21225 — Brooklyn

ZIP code 21225 serves Brooklyn, Maryland.

Postal code
21225
Single source Value from one source, not cross-checked.
City
Brooklyn
County
Anne Arundel FIPS 24003
State
Maryland
Country
United States
Coordinates
39.2259, -76.6153 — precision estimated (postal-area centroid)
View on OpenStreetMap
Population
34,469 (ZCTA, ACS 5-year)
Population density
5,336 / sq mi
Land area
6.5 sq mi (16.7 km²) (ZCTA, ACS 5-year)
Median household income
$50,069
Per-capita income
$26,626
Median age
35.2
Households
12,917
Housing units
14,434
Median home value
$214,000
Median gross rent
$1,118 / month
Congressional districts
MD-3 (also MD-7) (119th Congress)
USDA hardiness zone
8a (10 to 15 °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
410, 443, 667 (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 90°F), coldest Jan (avg low 30°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F444755677685908780695848
Avg low °F303239485868737165534335
Precip in3.12.83.93.53.43.44.74.34.53.53.03.7

NOAA 1991–2020 climate normals from the nearest station: MD SCI CTR BALTIMORE (3.9 mi) · NOAA NCEI

Places in ZIP 21225

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