Louisa County, Iowa Demographics 2026
Louisa County, Iowa has a population of 10,678, the 68th most populous county in Iowa. The median household income is $77,354 and the median home value is $150,100. The poverty rate is 9.8%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Louisa County Quick Facts
How Louisa County Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 10,710 | 10,678 | -0.3% |
| Median household income | $80,223 | $77,354 | -3.6% |
| Median home value | $137,600 | $150,100 | +9.1% |
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 31 | National average: 61
Education
Educational Attainment (Adults 25+)
Cities & Places in Louisa County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Columbus Junction | 2,110 | $63,828 | 10.3% | $125,800 |
| Wapello | 1,765 | $72,708 | 6.4% | $143,900 |
| Morning Sun | 802 | $56,350 | 11.3% | $102,200 |
| Grandview | 449 | $57,625 | 9.6% | $142,400 |
| Letts | 361 | $76,538 | 3.3% | $122,400 |
| Columbus City | 323 | $89,875 | 5.9% | $111,600 |
| Fredonia | 240 | $85,625 | 32.5% | $71,700 |
| Oakville | 204 | $63,750 | 22.1% | $77,500 |
| Cotter | 31 | N/A | 34.5% | $112,500 |
Explore Iowa Rankings
Population Overview
Louisa County is located in Iowa with a total population of 10,678. It is the 68th most populous county out of 99 in Iowa. The county encompasses 9 Census-designated places.
Age Demographics
The median age in Louisa County is 41.9 years. This is 9% higher than the state median of 38.6 years.
Economy, Income & Housing
The median household income in Louisa County is $77,354. This is 3% higher than the state median of $75,059. It is also 4% lower than the national median of $80,734. The poverty rate stands at 9.8%. This is 12% lower than the state poverty rate of 11.1%. The unemployment rate is 3.0%. This is 17% lower than the state rate of 3.6%. The median home value is $150,100. Housing costs are 28% lower than the state median of $208,000. With a home-value-to-income ratio of just 1.9x, Louisa County is one of the most affordable housing markets in the area. 80.3% of occupied housing units are owner-occupied. This homeownership rate is 12% higher than the state average of 71.7%.
Race & Ethnicity
The largest racial or ethnic group in Louisa County is White (non-Hispanic), making up 77.0% of the population. Hispanic or Latino residents account for 16.4%. The Black or African American population (0.9%) is well below the state average of 3.8%. The Hispanic or Latino population is significantly higher than the state average (16.4% vs 7.3%).
Education
16.8% of residents aged 25 and older hold a bachelor's degree or higher. This is among the lowest rates in the state, which may correlate with employment and income patterns. This is 47% lower than the state rate of 31.4%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 85.7%.
Data Sources & Methodology
All figures for Louisa County come from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates, with comparisons drawn against Iowa and national averages from the same dataset. See our methodology page for how each metric is defined, or data.census.gov for official tables with margins of error.
Frequently Asked Questions
What is the population of Louisa County, Iowa?
Louisa County has a population of 10,678, making it the 68th most populous county in Iowa.
What is the median income in Louisa County?
The median household income in Louisa County is $77,354 with a poverty rate of 9.8%.
How many cities are in Louisa County, Iowa?
Louisa County contains 9 Census-designated places.