ZIP code · Archer · Iowa · United States
ZIP code 51231 — Archer
ZIP code 51231 serves Archer, Iowa.
- Postal code
- 51231Single source Value from one source, not cross-checked.
- City
- Archer
- County
- O'Brien
- State
- Iowa
- Country
- United States
- Coordinates
- 43.1179, -95.7417 — precision precise (locality)
View on OpenStreetMap - Population
- 543 (ZCTA, ACS 5-year)
- Median household income
- $105,388
- Median age
- 16.3
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 · census-acs5. Data generated on 2026-08-21. Methodology · Report an error on this page