ZIP code · Griswold · Iowa · United States
ZIP code 51535 — Griswold
ZIP code 51535 serves Griswold, Iowa.
- Postal code
- 51535Single source Value from one source, not cross-checked.
- City
- Griswold
- County
- Cass
- State
- Iowa
- Country
- United States
- Coordinates
- 41.2350, -95.1375 — precision precise (locality)
View on OpenStreetMap - Population
- 1,768 (ZCTA, ACS 5-year)
- Median household income
- $83,929
- Median age
- 50
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