ZIP code · Baltimore · Maryland · United States

ZIP code 21217 — Baltimore

ZIP code 21217 serves Baltimore, Maryland.

Postal code
21217
Single source Value from one source, not cross-checked.
City
Baltimore
County
Baltimore (city) FIPS 24510
State
Maryland
Country
United States
Coordinates
39.3064, -76.6393 — precision precise (locality)
View on OpenStreetMap
Population
31,125 (ZCTA, ACS 5-year)
Population density
14,684 / sq mi
Land area
2.1 sq mi (5.5 km²) (ZCTA, ACS 5-year)
Median household income
$37,207
Per-capita income
$31,721
Median age
40.3
Households
14,952
Housing units
20,064
Median home value
$175,900
Median gross rent
$1,065 / month
Congressional district
MD-7 (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
410, 443, 667, 301
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 (2.4 mi) · NOAA NCEI

Places in ZIP 21217

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