ZIP code · Keystone · Iowa · United States
ZIP code 52249 — Keystone
ZIP code 52249 serves Keystone, Iowa.
- Postal code
- 52249Single source Value from one source, not cross-checked.
- City
- Keystone
- County
- Benton
- State
- Iowa
- Country
- United States
- Coordinates
- 42.0156, -92.2179 — precision precise (locality)
View on OpenStreetMap - Population
- 1,106 (ZCTA, ACS 5-year)
- Median household income
- $77,500
- Median age
- 40.5
- Time zone
- America/Chicago (UTC−6 / UTC−5 DST)
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). Data generated on 2026-08-21. Methodology · Report an error on this page