ZIP code · Malcom · Iowa · United States
ZIP code 50157 — Malcom
ZIP code 50157 serves Malcom, Iowa.
- Postal code
- 50157Single source Value from one source, not cross-checked.
- City
- Malcom
- County
- Poweshiek FIPS 19157
- State
- Iowa
- Country
- United States
- Coordinates
- 41.7695, -92.5354 — precision precise (locality)
View on OpenStreetMap - Population
- 686 (ZCTA, ACS 5-year)
- Population density
- 10 / sq mi
- Land area
- 66.7 sq mi (172.8 km²) (ZCTA, ACS 5-year)
- Median household income
- $59,583
- Per-capita income
- $37,391
- Median age
- 41
- Households
- 299
- Housing units
- 343
- Median home value
- $101,000
- Median gross rent
- $773 / month
- 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
- 641Telephone 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 50157 with another ZIP · ZIPs within 25 miles · distance from 50157
Map of ZIP code 50157
Climate — monthly normals
Warmest month Jul (avg high 83°F), coldest Jan (avg low 10°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 28 | 33 | 46 | 59 | 70 | 80 | 83 | 81 | 75 | 62 | 47 | 34 |
| Avg low °F | 10 | 14 | 25 | 35 | 47 | 58 | 62 | 59 | 50 | 38 | 26 | 16 |
| Precip in | 1.1 | 1.6 | 2.2 | 3.9 | 5.1 | 5.5 | 4.0 | 4.4 | 3.7 | 3.2 | 1.9 | 1.6 |
NOAA 1991–2020 climate normals from the nearest station: GRINNELL 3 SW (11.5 mi) · NOAA NCEI
Places in ZIP 50157
- 1 parks
- 1 post offices
- 4 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