ZIP code · Middle River · Minnesota · United States
ZIP code 56737 — Middle River
ZIP code 56737 serves Middle River, Minnesota.
- Postal code
- 56737Single source Value from one source, not cross-checked.
- City
- Middle River
- County
- Marshall FIPS 27089
- State
- Minnesota
- Country
- United States
- Coordinates
- 48.4426, -96.1232 — precision precise (locality)
View on OpenStreetMap - Population
- 759 (ZCTA, ACS 5-year)
- Population density
- 3 / sq mi
- Land area
- 238 sq mi (616.5 km²) (ZCTA, ACS 5-year)
- Median household income
- $70,536
- Per-capita income
- $39,553
- Median age
- 49.5
- Households
- 345
- Housing units
- 425
- Median home value
- $125,000
- Median gross rent
- $400 / month
- Congressional district
- MN-7 (119th Congress)
- USDA hardiness zone
- 3b (-35 to -30 °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
- 218Telephone 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.
Tools: compare 56737 with another ZIP · ZIPs within 25 miles · distance from 56737
Map of ZIP code 56737
Climate — monthly normals
Warmest month Jul (avg high 81°F), coldest Jan (avg low -3°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 16 | 22 | 36 | 53 | 67 | 77 | 81 | 80 | 70 | 54 | 36 | 21 |
| Avg low °F | -3 | 0 | 15 | 31 | 44 | 55 | 59 | 57 | 48 | 34 | 19 | 5 |
| Precip in | 0.6 | 0.5 | 0.8 | 1.4 | 3.1 | 3.9 | 4.0 | 3.3 | 2.7 | 2.2 | 1.1 | 0.8 |
NOAA 1991–2020 climate normals from the nearest station: AGASSIZ REFUGE (11.7 mi) · NOAA NCEI
Places in ZIP 56737
- 1 bars & pubs
- 1 parks
- 1 playgrounds
- 2 post offices
- 4 places of worship
- 1 banks
- 2 police & fire stations
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