County ProfileIA
Louisa County
Population: 10,837 · 7 ZIP codes
Demographics
Source: U.S. Census Bureau (ACS/Decennial). Estimates vary by year.
People
Total population
10,837
People
Median age
41.9
Housing
Total households
4,237
Income
Median household income
$77,354
Housing
Total housing units
4,739
Employment
Employment rate
61.5%
Education
Bachelor’s degree or higher
16.8%
Healthcare
Insured population
95.2%
County details
Local time 00:52:23(CT)| Name | Louisa |
|---|---|
| Total ZIP codes | 7total |
| ZIP codes (by type) | 6 Standard1 PO Box |
| Area code | 319 |
| Timezone | Central Time (CT) |
| Coordinates | 41.2182111, -91.2569936 |
| Land area | 401.8 sq miles(1,040.6 km²) |
Map of Louisa county, Iowa with ZIP codes
Cities and Communities in Louisa County
Compare the largest cities in Louisa County by population, median income, and growth. Use the table below to analyze key demographic shifts across the region.
| City | Population | Median incomeHousehold | ZIP codes |
|---|---|---|---|
| Wapello | 2,084 | $72,708 | 1ZIPs |
| Columbus Junction | 1,830 | $63,828 | 1ZIPs |
| Morning Sun | 752 | $56,350 | 1ZIPs |
| Grandview | 437 | $57,625 | 1ZIPs |
| Columbus City | 392 | $89,875 | 1ZIPs |
| Letts | 363 | $76,538 | 1ZIPs |
| Oakville | 200 | $63,750 | 1ZIPs |
— Data unavailable or suppressed by the U.S. Census Bureau for areas with small sample sizes to protect individual privacy.
ZIP Codes in Louisa County
Review the most populated postal areas across Louisa County. Use the ranking below to compare resident density and demographic scales between the county's major zones.
| ZIP | City | Median incomeHousehold | Population (ZIP) |
|---|---|---|---|
| 52653 | Wapello | $83,525 | 3,427 |
| 52738 | Columbus Junction | $80,385 | 3,404 |
| 52640 | Morning Sun | $67,813 | 1,331 |
| 52754 | Letts | $104,250 | 1,318 |
| 52646 | Oakville | $62,500 | 415 |
| 52752 | Grandview | $49,545 | 405 |
| 52737 | Columbus City | $89,875 | 392 |
Data Sources & Citations
The geographic and demographic information presented on this site is compiled from publicly available, authoritative sources, including:
- United States Census BureauDemographic, population, housing, and socioeconomic data sourced from Census Bureau datasets, including the Decennial Census and the American Community Survey (ACS).Census Data
- United States Postal Service (USPS)ZIP code classifications, delivery types, and postal designations used for reference purposes. USPS ZIP codes are intended for mail delivery and may not always align exactly with Census geographic boundaries.USPS