In which county is ZIP code 52231 located?

ZIP 52231 is listed under Keokuk, IA.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 52231: Harper, IA

ZIP: 52231

County: Keokuk

Coordinates: 41.37280, -92.03880

ZIP Type: Standard

Time Zone: Central Time (CT)

This profile provides an in-depth look at ZIP code 52231, serving Harper in IA. It lies in Keokuk and supports delivery, planning, and address verification.

Primary City	Harper
ZIP Code	52231
County	Keokuk
State	IA
Latitude / Longitude	41.37280, -92.03880
ZIP Type	Standard
Time Zone	Central Time (CT)
Data Updated	2026-01-08

Maps & Useful Links

Open in Maps: Google Maps · OpenStreetMap

These links show the approximate center point for ZIP 52231 (not an exact boundary).

Geographic & Administrative Context

The geographic center of ZIP code 52231 is approximately 41.37280 (latitude) and -92.03880 (longitude). This location sits within Keokuk, contributing to regional planning across IA.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 52231 for mail delivery and general location reference in Keokuk, IA.

This ZIP may extend beyond the city core into nearby communities within Keokuk.

Related ZIP Codes (Nearby)

Explore other postal codes near Harper within IA.

Frequently Asked Questions

What is the primary city for ZIP code 52231?

The primary city for this ZIP code is Harper, located in IA.

In which county is 52231 located?

ZIP code 52231 is situated within Keokuk, IA.

What are the coordinates for 52231?

The approximate center point is 41.37280 (Latitude) and -92.03880 (Longitude).

Is ZIP code 52231 active?

This page lists ZIP 52231 as Listed based on the latest refresh date shown above.

Does ZIP 52231 cover multiple areas?

Yes. Many ZIP codes cover multiple neighborhoods or nearby areas. For exact boundaries, use official mapping tools.

Methodology & Data Notes

How we build this page: We generate this page from a structured ZIP dataset and refresh key fields (city, county, and coordinates) during scheduled updates. Coordinates represent an approximate center point, not an official boundary map.
Sources: Public ZIP reference datasets and geographic coordinate references. If you use specific sources (e.g., USPS, Census), list them on your About/Methodology page.

Page updated: 2026-01-08