ZIP code · Columbia · Iowa · United States
ZIP code 50057 — Columbia
ZIP code 50057 serves Columbia, Iowa.
- Postal code
- 50057Single source Value from one source, not cross-checked.
- City
- Columbia
- County
- Marion FIPS 19125
- State
- Iowa
- Country
- United States
- Coordinates
- 41.1838, -93.1582 — precision precise (locality)
View on OpenStreetMap - Population
- 261 (ZCTA, ACS 5-year)
- Population density
- 14 / sq mi
- Land area
- 18.6 sq mi (48.1 km²) (ZCTA, ACS 5-year)
- Per-capita income
- $31,127
- Median age
- 50.5
- Households
- 112
- Housing units
- 138
- Median home value
- $213,100
- Congressional district
- IA-1 (119th Congress)
- USDA hardiness zone
- 5b (-15 to -10 °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
- 641 (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.
Tools: compare 50057 with another ZIP · ZIPs within 25 miles · distance from 50057
Map of ZIP code 50057
Climate — monthly normals
Warmest month Jul (avg high 85°F), coldest Jan (avg low 13°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 30 | 35 | 48 | 61 | 71 | 81 | 85 | 83 | 76 | 63 | 48 | 36 |
| Avg low °F | 13 | 17 | 28 | 39 | 51 | 61 | 66 | 63 | 54 | 42 | 30 | 19 |
| Precip in | 1.1 | 1.7 | 1.9 | 3.9 | 5.0 | 5.6 | 4.3 | 3.9 | 3.7 | 3.1 | 1.8 | 1.6 |
NOAA 1991–2020 climate normals from the nearest station: KNOXVILLE (10.2 mi) · NOAA NCEI
Places in ZIP 50057
- 2 schools
- 1 places of worship
- 1 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