ZIP code · Thor · Iowa · United States
ZIP code 50591 — Thor
ZIP code 50591 serves Thor, Iowa.
- Postal code
- 50591Single source Value from one source, not cross-checked.
- City
- Thor
- County
- Humboldt FIPS 19091
- State
- Iowa
- Country
- United States
- Coordinates
- 42.6889, -94.0390 — precision precise (locality)
View on OpenStreetMap - Population
- 366 (ZCTA, ACS 5-year)
- Population density
- 12 / sq mi
- Land area
- 29.4 sq mi (76.2 km²) (ZCTA, ACS 5-year)
- Median household income
- $56,960
- Per-capita income
- $35,151
- Median age
- 41.5
- Households
- 181
- Housing units
- 204
- Median home value
- $169,600
- Median gross rent
- $979 / 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 50591 with another ZIP · ZIPs within 25 miles · distance from 50591
Map of ZIP code 50591
Climate — monthly normals
Warmest month Jul (avg high 83°F), coldest Jan (avg low 8°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 26 | 30 | 43 | 59 | 70 | 80 | 83 | 81 | 76 | 62 | 45 | 31 |
| Avg low °F | 8 | 12 | 24 | 35 | 48 | 59 | 62 | 60 | 51 | 38 | 26 | 15 |
| Precip in | 0.9 | 1.4 | 2.0 | 3.7 | 5.1 | 5.4 | 4.0 | 4.5 | 3.2 | 2.6 | 1.6 | 1.4 |
NOAA 1991–2020 climate normals from the nearest station: DAKOTA CITY (8.3 mi) · NOAA NCEI
Places in ZIP 50591
- 1 post offices
- 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