ZIP code · Randall · Iowa · United States
ZIP code 50231 — Randall
ZIP code 50231 serves Randall, Iowa.
- Postal code
- 50231Single source Value from one source, not cross-checked.
- City
- Randall
- County
- Hamilton FIPS 19079
- State
- Iowa
- Country
- United States
- Coordinates
- 42.2383, -93.6008 — precision precise (locality)
View on OpenStreetMap - Population
- 160 (ZCTA, ACS 5-year)
- Population density
- 357 / sq mi
- Land area
- 0.4 sq mi (1.2 km²) (ZCTA, ACS 5-year)
- Median household income
- $69,688
- Per-capita income
- $33,921
- Median age
- 48.4
- Households
- 68
- Housing units
- 77
- Median home value
- $106,300
- Median gross rent
- $825 / month
- Congressional district
- IA-4 (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
- 515Telephone 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 50231 with another ZIP · ZIPs within 25 miles · distance from 50231
Map of ZIP code 50231
Climate — monthly normals
Warmest month Jul (avg high 84°F), coldest Jan (avg low 11°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 29 | 33 | 47 | 61 | 72 | 81 | 84 | 82 | 76 | 63 | 47 | 34 |
| Avg low °F | 11 | 15 | 27 | 38 | 50 | 60 | 63 | 60 | 51 | 39 | 27 | 17 |
| Precip in | 0.6 | 0.8 | 1.9 | 3.9 | 5.2 | 5.2 | 4.4 | 4.8 | 3.3 | 2.8 | 1.9 | 1.1 |
NOAA 1991–2020 climate normals from the nearest station: AMES MUNI AP (17.0 mi) · NOAA NCEI
Places in ZIP 50231
- 1 parks
- 1 post offices
- 1 places of worship
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