Marshall County, Kentucky Demographics 2026
Marshall County, Kentucky has a population of 31,743, the 32nd most populous county in Kentucky. The median household income is $65,831 and the median home value is $173,800. The poverty rate is 12.3%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Marshall County Quick Facts
How Marshall 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 | 31,728 | 31,743 | +0.0% |
| Median household income | $63,611 | $65,831 | +3.5% |
| Median home value | $173,700 | $173,800 | +0.1% |
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: 33 | National average: 61
Education
Educational Attainment (Adults 25+)
Cities & Places in Marshall County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Benton | 4,748 | $66,827 | 11.4% | $157,000 |
| Calvert City | 2,526 | $48,906 | 12.8% | $165,700 |
| Hardin | 446 | $30,250 | 44.7% | $96,500 |
| Gilbertsville | 433 | $12,391 | 77.4% | $101,800 |
Explore Kentucky Rankings
Population Overview
Marshall County is located in Kentucky with a total population of 31,743. It is the 32nd most populous county out of 120 in Kentucky. The county encompasses 4 Census-designated places.
Age Demographics
The median age in Marshall County is 45.1 years. This is 15% higher than the state median of 39.1 years.
Economy, Income & Housing
The median household income in Marshall County is $65,831. This is 3% higher than the state median of $63,726. It is also 18% lower than the national median of $80,734. The poverty rate stands at 12.3%. This is 24% lower than the state poverty rate of 16.1%. The unemployment rate is 4.5%. This is 7% lower than the state rate of 4.9%. The median home value is $173,800. Housing costs are 15% lower than the state median of $205,600. With a home-value-to-income ratio of just 2.6x, Marshall County is one of the most affordable housing markets in the area. 81.6% of occupied housing units are owner-occupied. This homeownership rate is 19% higher than the state average of 68.3%.
Race & Ethnicity
Marshall County has a predominantly White (non-Hispanic) population, comprising 95.4% of all residents. Hispanic or Latino residents account for 2.0%. The Black or African American population (0.6%) is well below the state average of 7.5%. The Hispanic or Latino population (2.0%) is well below the state average of 5.0%. The Asian population (0.4%) is well below the state average of 1.6%.
Education
21.2% of residents aged 25 and older hold a bachelor's degree or higher. This is 23% lower than the state rate of 27.6%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 91.4%.
Data Sources & Methodology
All figures for Marshall County come from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates, with comparisons drawn against Kentucky 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 Marshall County, Kentucky?
Marshall County has a population of 31,743, making it the 32nd most populous county in Kentucky.
What is the median income in Marshall County?
The median household income in Marshall County is $65,831 with a poverty rate of 12.3%.
How many cities are in Marshall County, Kentucky?
Marshall County contains 4 Census-designated places.