Harper, IA ZIP code
The ZIP code for Harper, Iowa is 52231. It is in Keokuk County.
- Population in these ZIPs
- 539
- Avg. median income
- $90,900population-weighted
- Typical home value
- $150,300population-weighted
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Harper, IA ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 52231 | 539 | $90,893 | $150,300 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities near Harper
- Keota 6 mi
- Sigourney 7 mi
- South English 8 mi
- Webster 10 mi
- Ollie 10 mi
- Hayesville 12 mi
- Richland 12 mi
- West Chester 13 mi
- North English 13 mi
- Wellman 14 mi
- Keswick 14 mi
- Thornburg 16 mi
Frequently asked questions
What is the ZIP code for Harper, IA?
The ZIP code for Harper, IA is 52231.
What county is Harper, Iowa in?
Harper ZIP codes are in Keokuk County.