ZIP code · Boonsboro · Maryland · United States

ZIP code 21713 — Boonsboro

ZIP code 21713 serves Boonsboro, Maryland.

Postal code
21713
Single source Value from one source, not cross-checked.
City
Boonsboro
County
Washington FIPS 24043
State
Maryland
Country
United States
Coordinates
39.5520, -77.6957 — precision precise (locality)
View on OpenStreetMap
Population
10,146 (ZCTA, ACS 5-year)
Population density
256 / sq mi
Land area
39.6 sq mi (102.5 km²) (ZCTA, ACS 5-year)
Median household income
$101,585
Per-capita income
$46,822
Median age
45
Households
3,939
Housing units
4,109
Median home value
$348,300
Median gross rent
$1,224 / month
Congressional district
MD-6 (119th Congress)
USDA hardiness zone
7a (0 to 5 °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
240, 301, 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 86°F), coldest Jan (avg low 22°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F404453657483868578665444
Avg low °F222532415362666556453427
Precip in3.22.73.93.94.33.43.73.74.83.42.93.7

NOAA 1991–2020 climate normals from the nearest station: HAGERSTOWN 1 E (6.1 mi) · NOAA NCEI

Places in ZIP 21713

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