ZIP code · Caledonia · Minnesota · United States
ZIP code 55921 — Caledonia
ZIP code 55921 serves Caledonia, Minnesota.
- Postal code
- 55921Single source Value from one source, not cross-checked.
- City
- Caledonia
- County
- Houston FIPS 27055
- State
- Minnesota
- Country
- United States
- Coordinates
- 43.6221, -91.4837 — precision precise (locality)
View on OpenStreetMap - Population
- 4,793 (ZCTA, ACS 5-year)
- Population density
- 27 / sq mi
- Land area
- 175.2 sq mi (453.7 km²) (ZCTA, ACS 5-year)
- Median household income
- $76,679
- Per-capita income
- $44,317
- Median age
- 45.2
- Households
- 2,142
- Housing units
- 2,278
- Median home value
- $189,600
- Median gross rent
- $825 / month
- Congressional district
- MN-1 (119th Congress)
- USDA hardiness zone
- 5a (-20 to -15 °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
- 507Telephone 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 55921 with another ZIP · ZIPs within 25 miles · distance from 55921
Map of ZIP code 55921
Climate — monthly normals
Warmest month Jul (avg high 81°F), coldest Jan (avg low 8°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 24 | 29 | 41 | 56 | 68 | 77 | 81 | 79 | 72 | 59 | 43 | 30 |
| Avg low °F | 8 | 11 | 23 | 35 | 47 | 58 | 62 | 59 | 51 | 39 | 26 | 15 |
| Precip in | 1.1 | 1.2 | 2.0 | 4.0 | 4.8 | 6.1 | 4.3 | 4.5 | 4.0 | 3.0 | 1.8 | 1.6 |
NOAA 1991–2020 climate normals from the nearest station: CALEDONIA (1.1 mi) · NOAA NCEI
Places in ZIP 55921
- 3 schools
- 3 restaurants & cafés
- 8 parks
- 2 playgrounds
- 1 gyms & sports centres
- 1 libraries
- 1 post offices
- 1 places of worship
- 2 banks
- 3 gas stations
- 3 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