ZIP code · Colwell · Iowa · United States
ZIP code 50620 — Colwell
ZIP code 50620 serves Colwell, Iowa.
- Postal code
- 50620Single source Value from one source, not cross-checked.
- City
- Colwell
- County
- Floyd FIPS 19067
- State
- Iowa
- Country
- United States
- Coordinates
- 43.1584, -92.5905 — precision precise (locality)
View on OpenStreetMap - Population
- 54 (ZCTA, ACS 5-year)
- Population density
- 368 / sq mi
- Land area
- 0.1 sq mi (0.4 km²) (ZCTA, ACS 5-year)
- Median household income
- $46,458
- Per-capita income
- $78,981
- Median age
- 30
- Households
- 23
- Housing units
- 26
- Median home value
- $104,700
- Congressional district
- IA-2 (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
- 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 50620 with another ZIP · ZIPs within 25 miles · distance from 50620
Map of ZIP code 50620
Climate — monthly normals
Warmest month Jul (avg high 82°F), coldest Jan (avg low 9°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 25 | 30 | 43 | 58 | 70 | 79 | 82 | 80 | 73 | 60 | 44 | 30 |
| Avg low °F | 9 | 13 | 25 | 37 | 49 | 59 | 62 | 60 | 51 | 39 | 26 | 15 |
| Precip in | 1.0 | 1.1 | 1.9 | 3.7 | 5.1 | 6.1 | 4.9 | 4.3 | 3.8 | 2.6 | 1.7 | 1.4 |
NOAA 1991–2020 climate normals from the nearest station: CHARLES CITY (7.9 mi) · NOAA NCEI
Places in ZIP 50620
- 1 parks
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