Marshall County, Kentucky Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 32nd-largest in Kentucky
The population of Marshall County, Kentucky is 31,728 as of the 2023 American Community Survey, making it the 32nd-largest county in Kentucky. The median household income is $63,611, the median home value is $173,700, and the median age is 44.9.
The population of Marshall County has grown 0.9% since 2010 (31,453 → 31,734), a +0.06% annualized rate.
31,728
Population
+0.06%
Annual growth
105
People / sq mi
$63,611
Median Income
$173,700
Median Home Value
Marshall County covers 302 sq mi of land at 105.0 people per square mile.
About Marshall County, KY
Marshall County is a county in Kentucky with a population of 31,728. It ranks #32 among counties in Kentucky by population. The median age is 44.9, older than the national median. The population is 49.8% male and 50.2% female.
The median household income in Marshall County is $63,611, below the US median of $74,580. 8.5% of residents live below the federal poverty level. Home values sit at a median of $173,700, with monthly rent averaging $773. The homeownership rate of 82.1% is higher than the national rate of 64.8%.
Educational attainment in Marshall County reflects 21.0% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 6.5% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 24.0 minutes each way.
Marshall County Population History (2010-2024)
The county of Marshall County had a population of 31,453 in 2010 and 31,734 in 2024, a 0.9% growth over 14 years. The peak was 31,810 in 2021. Average annual growth rate: 0.07%.
31,734
Population (2024)
31,453
Population (2010)
31,810
Peak (2021)
0.07%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 31,453 |
| 2011 | 31,264 |
| 2012 | 31,264 |
| 2013 | 31,218 |
| 2014 | 30,997 |
| 2015 | 31,068 |
| 2016 | 31,277 |
| 2017 | 31,324 |
| 2018 | 31,247 |
| 2019 | 31,113 |
| 2020 | 31,688 |
| 2021 | 31,810 |
| 2022 | 31,766 |
| 2023 | 31,717 |
| 2024 | 31,734 |
Race & Ethnicity
| White | 96.2% |
| Black or African American | 0.7% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.6% |
| Two or More Races | 0.0% |
Age & Sex
44.9
Median Age
50.2%
Female
49.8%
Male
22.0%
Age 65+
Age Distribution
Children (under 15): 16.5% · Seniors (65+): 22.0%
Income & Poverty
| Median household income | $63,611+$1,194 vs state |
| Mean household income | $81,091 |
| Per-capita income | $33,532 |
| Poverty rate | 8.5%-3.3% vs state |
| Unemployment rate | 2.1% |
| Employment-to-population | 53.1% |
Top Industries by Employment
The largest employment sector in Marshall County is professional & business services, accounting for 20.8% of workers.
How residents commute
0.1%
Drive alone
1.5%
Carpool
78.8%
Public transit
6.5%
Work from home
24.0 min
Avg commute
Housing
$173,700$-18,600 vs state
Median home value
$773
Median rent
82.1%
Homeownership rate
16,461
Total housing units
79.9%
Occupied
20.1%
Vacant
17.9%
Renter-occupied
Social & access
92.9%
With health insurance
94.2%
With broadband internet
33.4%
Foreign-born
7.8%
Veterans (18+)
19.0%
With a disability
98.5%
Speak language other than English at home
Education
92.3%
High School+
21.0%
Bachelor's+
Largest cities in Kentucky
Other counties in Kentucky
Part of Kentucky
Metro areas in Kentucky
County rankings
Frequently Asked Questions
Marshall County, Kentucky has a population of 31,728 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 32nd-largest county in Kentucky. Population density is 105 people per square mile.
The population of Marshall County has grown 0.9% since 2010 (31,453 → 31,734), a +0.06% annualized rate.
The median household income in Marshall County, Kentucky is $63,611, with mean (average) household income of $81,091 and per-capita income of $33,532. 8.5% of residents live below the federal poverty level.
In Marshall County, the largest racial and ethnic groups are White (96.2%), Black or African American (0.7%), Hispanic or Latino (0.6%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Marshall County, Kentucky is 44.9 years. Residents are 50.2% female and 49.8% male.
The median home value in Marshall County is $173,700 and median monthly rent is $773. 82.1% of occupied housing units are owner-occupied. The county has 16,461 total housing units, 20.1% of which are vacant.
The largest employment sector in Marshall County, Kentucky is professional, scientific, and management services, employing 20.8% of workers. The unemployment rate is 2.1%.
Louisville/Jefferson County is among the largest cities associated with Marshall County, Kentucky, with a population of 627,210.
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Statewide data for Kentucky
Population, race, income, age, and trends across Kentucky
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.