Residential delivery area · Minnesota
ZIP Code 56721: East Grand Forks, MN
ZIP code 56721 uses the postal name East Grand Forks, Minnesota and lies entirely in Polk County (Census 2020 ZIP-county file). About 11,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $82,525 (Census Bureau, ACS 2020-2024). By Census place, 3% of its land lies in East Grand Forks; 97% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- East Grand Forks · its only residential ZIP
- County
- Polk County
- Census places
- East Grand Forks
- Metro area
- Grand Forks, ND-MN
- House district
- MN-7 119th Congress
- State
- Minnesota
- Time zone
- Central
- Land area
- 192.4 sq mi · 55 people per sq mi
Where is ZIP code 56721?
56721 centers on 47.971°, -96.950° and covers 192.4 square miles of land plus 0.5 of water. It borders 9 ZIP codes: 58203, 58201, 56723, 56722, 58256, 58278, 56762, 56710, 56744.
The map draws ZIP code areas only. For the streets inside 56721, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 56721 compare with the rest of Polk County?
| Measure | 56721 | In Polk County | In MN |
|---|---|---|---|
| People (ACS 2020-2024) | 10,679 | 2nd of 25 | 161st of 881 |
| Median household income | $83k | 2nd of 10 | 265th of 545 |
| Median home value | $259k | 1st of 10 | 311th of 558 |
Its median household income is higher than in 65% of U.S. residential ZIP codes, and it is denser than 44% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 56721?
The 2020 Census counted 10,602 people in 56721; the ACS, which samples households over 2020-2024, estimates 10,679. Between the 2010 and 2020 censuses its population grew 5.0% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 10,679
- 2020 Census count
- 10,602+5.0% since 2010 (10,096)
- Households
- 4,067
- Median age
- 36.5
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 56721?
Of the 10,679 people the ACS estimates in 56721, 27.9% are under 18 and 13.6% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (79.1%).
- Under 1827.9%
- 18 to 6458.4%
- 65 and older13.6%
- White, not Hispanic79.1%
- Hispanic or Latino9.3%
- Other or two or more8.0%
- Black, not Hispanic3.2%
- Asian, not Hispanic0.4%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 56721 earn?
Median household income is $82,525 (ACS 2020-2024), the 2nd highest of the 10 ranked ZIP codes in Polk County. It is not measurably different from 2015-2019 ($78,600 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $82,525±$9,296
- Income per person
- $36,872
- Below the poverty line
- 10.8%
- Unemployed (of the labor force)
- 3.2%
- Adults 25+ with a bachelor's degree
- 26.3%
- Adjusted gross income per tax return, 2022
- $76,1414,730 returns; wages 71% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 56721?
FHFA's house price index for 56721, built from repeat sales and appraisals of the same homes, rose 40% from 2015 to 2025 and rose 28% from 2020 to 2025, and moved +3.7% in 2025.
- Median home value (owners' estimate)
- $259,300
- Median gross rent
- $890
- Homes owned by their occupants
- 72.2%
- Housing units
- 4,324
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 56721?
211 business establishments had a location in this ZIP code in 2023, 5 fewer than in 2018; the most are in health care and social assistance (ZIP Code Business Patterns).
- Health care and social assistance41
- Retail trade26
- Accommodation and food services19
- Other services (except public administration)19
- Construction18
- Finance and insurance17
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 56721?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 58203 | Grand Forks, ND | 16,478 | $61k | 10.0 mi |
| 58201 | Grand Forks, ND | 42,373 | $68k | 11.4 mi |
| 56723 | Fisher | 838 | $106k | 13.2 mi |
| 56722 | Euclid | 377 | $94k | 13.9 mi |
| 58256 | Manvel, ND | 705 | $91k | 14.0 mi |
| 58278 | Thompson, ND | 2,168 | $111k | 15.3 mi |
| 56762 | Warren | 2,433 | $63k | 16.7 mi |
| 56710 | Alvarado | 483 | $68k | 17.2 mi |
| 56744 | Oslo | 571 | $82k | 19.7 mi |
| 58202 | Grand Forks, ND | 2,865 | $30k | 6.7 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.