ZIP code · East Grand Forks · Minnesota · United States

ZIP code 56721 — East Grand Forks

ZIP code 56721 serves East Grand Forks, Minnesota.

Postal code
56721
Single source Value from one source, not cross-checked.
City
East Grand Forks
County
Polk FIPS 27119
State
Minnesota
Country
United States
Coordinates
47.9318, -97.0213 — precision precise (locality)
View on OpenStreetMap
Population
10,791 (ZCTA, ACS 5-year)
Population density
56 / sq mi
Land area
192.4 sq mi (498.4 km²) (ZCTA, ACS 5-year)
Median household income
$83,633
Per-capita income
$37,388
Median age
35
Households
4,112
Housing units
4,381
Median home value
$247,200
Median gross rent
$876 / month
Congressional district
MN-7 (119th Congress)
USDA hardiness zone
4a (-30 to -25 °F)
Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
Time zone
America/Chicago (UTC−6 / UTC−5 DST)
Area code
218
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 80°F), coldest Jan (avg low -1°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F152034526776807970533521
Avg low °F-131731445559574735206
Precip in0.50.60.91.23.04.13.53.02.42.00.80.7

NOAA 1991–2020 climate normals from the nearest station: GRAND FORKS UNIV (NWS) (3.6 mi) · NOAA NCEI

Places in ZIP 56721

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