100 Largest ZIP Codes in the United States by Population in Louisa County, Iowa
Explore the 100 largest ZIP codes in the United States ranked by population using U.S. Census demographic data. This page lists ZIP codes located in Louisa County, Iowa.
| Rank | ZIP Code | City | State | Population |
|---|---|---|---|---|
| 1 | 52738 | COLUMBUS JUNCTION | IA | 3,389 |
| 2 | 52653 | WAPELLO | IA | 3,109 |
| 3 | 52754 | LETTS | IA | 1,501 |
| 4 | 52640 | MORNING SUN | IA | 1,366 |
| 5 | 52752 | GRANDVIEW | IA | 364 |
| 6 | 52646 | OAKVILLE | IA | 293 |
| 7 | 52737 | COLUMBUS CITY | IA | 274 |