Louisa County, IA ZIP codes
Louisa County ZIP codes by town
Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.
ZIP codes partly in Louisa County
These ZIP codes lie mostly in a neighbouring county but each cover a twentieth or more of Louisa County.
- 52646 Oakville · mostly in Des Moines County
- 52754 Letts · mostly in Muscatine County
Map of Louisa County ZIP codes
The ZIP codes of Louisa County, 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.
Louisa County in numbers
About 10,678 people live in Louisa County, in 4,237 households, the 68th most populous of Iowa's 99 counties. The median household income is $77,354 a year, 3% above the Iowa median of $75,059 (US: $80,734). The median owner-occupied home is valued at $150,100 (28% below the Iowa median), and median gross rent is $775 a month. The median age is 41.9; 16.8% of adults 25 and over hold a bachelor's degree or higher (31.4% across Iowa); the average commute takes 27 minutes.
| Population | 10,678 |
|---|---|
| Households | 4,237 |
| Median age | 41.9 |
| Median household income | $77,354 |
| Median home value | $150,100 |
| Median gross rent | $775 |
| Bachelor's degree or higher | 16.8% |
| Mean commute | 27.3 min |
| Population density | 27 / sq mi |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.
Largest towns in Louisa County
| Town | ZIP codes | Population |
|---|---|---|
| Columbus Junction | 1 | 2,110 |
| Wapello | 1 | 1,765 |
| Morning Sun | 1 | 802 |
| Grandview | 1 | 449 |
| Conesville | 1 | 439 |
| Columbus City | 1 | 323 |
Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.
Neighbouring counties
Counties that share a ZIP code with Louisa County.
Not sure you are in Louisa County? What county am I in? answers from your location, near a county line included.
Every ZIP code in Louisa County, with figures
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
52640 | Morning Sun , IA | Standard | 1,274 | $67,813 | $125,800 |
52653 | Wapello , IA | Standard | 3,083 | $83,525 | $161,000 |
52737 | Columbus City , IA | Standard | 323 | $89,875 | $111,600 |
52738 | Columbus Junction , IA | Standard | 3,398 | $80,385 | $145,700 |
52739 | Conesville , IA | Standard | 788 | $74,375 | $97,500 |
52752 | Grandview , IA | Standard | 413 | $49,545 | $144,300 |
Cite this page
zipcodes.pro. “Louisa County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/ia/county/louisa
Underlying data is public domain or openly licensed — sources, vintages and licences.