Williamson ZIP code, Iowa
The ZIP code for Williamson, IA is 50272, and its area code is 641.
- USPS city name
- 1 ZIP code
- Overlapping the city
- 1 more
- Population
- 190
- Area code
- 641
- County
- Lucas County
- State
- Iowa
Mail addressed to Williamson uses the ZIP code above. 1 more ZIP code covers part of the city but is addressed as somewhere else; they are listed separately below.
ZIP codes addressed as Williamson
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
50272 | Williamson , IA | Standard | 190 | $45,000 | — |
Other ZIP codes overlapping Williamson
These ZIP codes cover part of Williamson but are addressed as somewhere else.
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
50049 | Chariton , IA | Standard | 6,414 | $61,190 | $124,900 |
Map of Williamson ZIP codes
The ZIP codes of Williamson, IA, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Towns near Williamson
The nearest larger towns are Chariton (4,242 people, 5.6 mi), Russell (613 people, 8.0 mi) and Melcher-Dallas (1,176 people, 9.6 mi).
| Town | Population | Distance |
|---|---|---|
| Chariton | 4,242 | 5.6 mi |
| Knoxville | 7,473 | 17.8 mi |
| Albia | 3,663 | 24.0 mi |
| Indianola | 16,044 | 24.8 mi |
| Osceola | 5,523 | 27.8 mi |
| Pella | 10,720 | 28.1 mi |
More nearby: every ZIP code in Lucas County · Iowa ZIP codes
Cite this page
zipcodes.pro. “Williamson, IA ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/ia/williamson
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