Alton ZIP Code Finder by Area and Number Iowa
The Alton zip code is 51003 in Iowa helps people find the correct mailing location for homes, businesses, and services in Alton.
Alton Zip Code - 51003
| City | Alton |
| Zip Code | 51003 |
| State | Iowa |
| County | Sioux |
| Population | 1,815 |
| Latitude | 42.98355 |
| Longitude | -95.98642 |
| Time Zone | America/Chicago |
The Alton Iowa zip code is used by USPS for mail delivery, shipping, and address identification across Alton and nearby Iowa cities.
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The Alton zip code area covers neighborhoods, residential communities, and business locations in Alton IA. Whether you are looking for the Alton city zip code, Alton Iowa postal code, Alton IA mailing code, or Alton location zip code, the Alton zip code Iowa helps identify the correct postal region in Iowa.
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