Postal reference / United States

52644Mount Union, Iowa

ZIP code 52644 is a United States postal code for Mount Union, Iowa. Its county association is Henry County. The map reference point is at 41.0374, -91.4138.

State / territory
Iowa
Recorded place name
Mount Union
County association
Henry
Estimated coordinate
41.0374, -91.4138
View on OpenStreetMap
ZIP prefix
526 · 36 ZIP codes share it
Data source
GeoNames postal reference, snapshot September 26, 2026

GeoNames reference data. County associations may not include every intersecting county, place names are postal names rather than legal boundaries, and coordinates are approximate. This is not address validation.

Area

Land area
43.316 sq mi (2023 Census Gazetteer)

Figures are for the ZIP Code Tabulation Area (ZCTA) that most closely matches this ZIP code, not an exact match to USPS delivery boundaries. Source: U.S. Census Bureau, 2023 Gazetteer + 2023 ACS 5-Year Estimates, retrieved 2026-09-27. How to read this data.

Need the last four digits?

ZIP+4 depends on the full delivery address. A five-digit code alone cannot determine its extension.

Find ZIP+4

Explore Iowa

Browse the other 1,054 ZIP codes recorded for Iowa, sorted by code with place and county.

Iowa directory

Nearby ZIP code reference points

ZIP codePlaceStateCounty associationMiles
52659WinfieldIAHenry6.2
52660YarmouthIADes Moines6.9
52652SwedesburgIAHenry8.3
52645New LondonIAHenry8.4
52640Morning SunIALouisa9.1
52641Mount PleasantIAHenry9.2
52647OldsIAHenry9.6
52621CrawfordsvilleIAWashington13.6

Straight-line distance between reference points. Nearby points do not prove that ZIP areas touch.

Verify a mailing address

For mailing, confirm the complete street or PO Box address with USPS. A place record does not confirm delivery eligibility or the ZIP+4 extension.

Open USPS address lookup