ZIP code · Underwood · Iowa · United States
ZIP code 51576 — Underwood
ZIP code 51576 serves Underwood, Iowa.
- Postal code
- 51576Single source Value from one source, not cross-checked.
- City
- Underwood
- County
- Pottawattamie FIPS 19155
- State
- Iowa
- Country
- United States
- Coordinates
- 41.3603, -95.6270 — precision precise (locality)
View on OpenStreetMap - Population
- 1,890 (ZCTA, ACS 5-year)
- Population density
- 41 / sq mi
- Land area
- 46.3 sq mi (120 km²) (ZCTA, ACS 5-year)
- Median household income
- $107,679
- Per-capita income
- $45,681
- Median age
- 37.7
- Households
- 699
- Housing units
- 751
- Median home value
- $291,500
- Median gross rent
- $819 / month
- Congressional district
- IA-4 (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
- 712Telephone 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 51576 with another ZIP · ZIPs within 25 miles · distance from 51576
Map of ZIP code 51576
Climate — monthly normals
Warmest month Jul (avg high 85°F), coldest Jan (avg low 12°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 30 | 35 | 49 | 62 | 72 | 82 | 85 | 83 | 77 | 64 | 48 | 35 |
| Avg low °F | 12 | 16 | 27 | 37 | 50 | 61 | 64 | 62 | 53 | 41 | 28 | 17 |
| Precip in | 0.8 | 1.1 | 2.0 | 3.9 | 5.4 | 5.3 | 3.6 | 4.9 | 3.6 | 3.0 | 1.6 | 1.3 |
NOAA 1991–2020 climate normals from the nearest station: OAKLAND (13.2 mi) · NOAA NCEI
Places in ZIP 51576
- 5 schools
- 2 restaurants & cafés
- 2 parks
- 1 playgrounds
- 2 post offices
- 3 places of worship
- 1 gas stations
- 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