County · Kentucky
Marshall County, Kentucky
Marshall County, Kentucky. Marshall County had 31,659 residents in 2025 by the Census Bureau's estimate, about level with 2020, slower than Kentucky (+2.2%). It holds 4 places (3 cities, villages and boroughs and 1 census-designated) and 10 census tracts. GEOID 21157.
Residents, July 2025 estimate
31,659
Census Bureau estimate (no margin published)
2020 Census count: 31,659 · ACS 2020-2024: 31,743
Median household income
$65,831
±$6,084 (90% margin)
Kentucky: $63,726
Median home value
$173,800
±$13,742 (90% margin)
Kentucky: $205,600
Median gross rent
$798
±$58 (90% margin)
Kentucky: $967
How many people live in Marshall County, and is it growing?
The 2020 Census counted 31,659 residents in Marshall County. The Census Bureau estimates 31,659 for July 1, 2025, about level with 2020, slower than Kentucky (+2.2%). The 2020-2024 American Community Survey puts the population at 31,743 over 302 square miles of land.
| Measure | Marshall County | Kentucky | Change since 2015-2019 |
|---|---|---|---|
| Total population | 31,743 | 4,534,824 | +551 |
| Households | 13,209±432 | 1,814,469 | no clear change |
| Average household size | 2.36±0.08 | 2.43 | no clear change |
| Housing units | 16,572±32 | 2,023,116 | +397 |
Marshall County's population since 2000
From 30,125 in 2000 to 31,659 in 2025: up 5.1%. The 2000, 2010 and 2020 figures are census counts. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); PEP Vintage 2025 (CO-EST2025); 2020 Census · Check it at data.census.gov
What cities and towns are in Marshall County?
Marshall County holds 4 places: 3 cities, villages and boroughs (incorporated places) and 1 census-designated place. The largest is Benton with 4,718 residents (2025 estimate). Places that cross a county line are listed with the share of their 2020 residents who live in this county.
| Benton | 4,756 | $66,827 |
|---|---|---|
| Calvert City | 2,514 | $48,906 |
| Hardin | 580 | $30,250 |
| GilbertsvilleGEOID 2130880 | 332 | $12,391 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 place-by-county parts · Check it at data.census.gov
Who lives in Marshall County?
The median resident of Marshall County is 45.1 years old; 20.1% are under 18 and 22.6% are 65 or older. The largest group is non-Hispanic white residents at 95.4%, then Hispanic or Latino residents (of any race) at 2.0%. 0.9% of residents were born outside the United States.
| Measure | Marshall County | Kentucky | Change since 2015-2019 |
|---|---|---|---|
| Median age | 45.1±0.1 | 39.1 | no clear change |
| Under 18 years | 20.1%±0.1 pts | 22.6% | – |
| 65 years and over | 22.6%±0.2 pts | 17.3% | – |
| Hispanic or Latino (any race) | 2.0% | 5.0% | +0.4 pts |
| White alone, not Hispanic | 95.4%±0.4 pts | 81.5% | −0.9 pts |
| Black or African American alone, not Hispanic | 0.6%±0.2 pts | 7.6% | no clear change |
| Asian alone, not Hispanic | 0.4%±0.1 pts | 1.6% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.2%±0.2 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±0.1 pts | 0.1% | – |
| Two or more races, not Hispanic | 1.5%±0.5 pts | 3.9% | – |
| Some other race alone, not Hispanic | 0.0%±0.1 pts | 0.3% | – |
| Born outside the United States | 0.9%±0.3 pts | 4.7% | no clear change |
| Speak a language other than English at home (age 5+) | 1.4%±0.7 pts | 6.8% | – |
| Civilian veterans (age 18+) | 7.4%±0.9 pts | 6.5% | – |
| With a disability | 20.4%±2.1 pts | 17.9% | – |
| No health insurance coverage | 8.1%±2.6 pts | 6.0% | +3.5 pts |
| High school graduate or higher (age 25+) | 91.4%±1.5 pts | 88.9% | – |
| Bachelor's degree or higher (age 25+) | 21.2%±2.0 pts | 27.6% | no clear change |
| Graduate or professional degree (age 25+) | 8.5%±1.7 pts | 11.3% | – |
| Moved from another state in the past year | 1.8%±0.8 pts | 2.4% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Marshall County earn?
Half of Marshall County's 13,209 households earn less than $65,831 a year (±$6,084), against $63,726 in Kentucky. In 2015-2019 it was $67,827 in 2024 dollars; the margins of error cannot tell the two periods apart. 12.3% of residents live below the poverty line.
| Measure | Marshall County | Kentucky | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $65,831±$6,084 | $63,726 | no clear change |
| Mean household income | $83,442±$4,679 | $87,807 | – |
| Per capita income | $34,734±$1,869 | $35,821 | no clear change |
| People below the poverty line | 12.3%±2.0 pts | 16.1% | no clear change |
| Children under 18 below the poverty line | 14.8%±4.4 pts | 20.3% | no clear change |
| Households receiving SNAP | 9.3%±1.9 pts | 13.2% | – |
| Households with a broadband subscription | 85.5%±2.5 pts | 88.6% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Marshall County?
Owners occupy 81.6% of Marshall County's occupied homes and renters 18.4%. The median owner-occupied home is valued at $173,800 by its owner (±$13,742). The median renter pays $798 a month including utilities, and 39.3% of renters pay 35% or more of their income on rent.
| Measure | Marshall County | Kentucky | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $173,800±$13,742 | $205,600 | no clear change |
| Median gross rent | $798±$58 | $967 | no clear change |
| Renters paying 35% or more of income on rent | 39.3%±9.1 pts | 36.6% | no clear change |
| Median monthly owner costs, with a mortgage | $1,248±$58 | $1,433 | – |
| Owner-occupied homes | 81.6%±2.5 pts | 68.3% | no clear change |
| Housing units | 16,572±32 | 2,023,116 | +397 |
| Homeowner vacancy rate | 0.3%±0.5 pts | 0.9% | – |
| Rental vacancy rate | 6.5%±4.2 pts | 4.6% | – |
| Single-family detached homes | 76.7%±2.8 pts | 67.5% | – |
| Mobile homes | 15.2%±2.3 pts | 10.7% | – |
| Built 2020 or later | 1.4%±0.8 pts | 1.8% | – |
| Built 1939 or earlier | 4.1%±1.4 pts | 9.0% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Marshall County building?
Builders took permits for 86 new housing units across Marshall County in 2025 (84 single-family), 2.7 per 1,000 residents.
Source: Building Permits Survey, annual county files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Marshall County get to work?
78.2% of Marshall County's workers drive alone and 7.9% work from home. The average trip to work takes 23.7 minutes. The unemployment rate in 2020-2024 averaged 4.5%.
| Measure | Marshall County | Kentucky | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 55.9%±1.9 pts | 59.7% | – |
| Unemployment rate | 4.5%±1.4 pts | 4.9% | no clear change |
| Drove alone to work | 78.2%±3.8 pts | 76.6% | – |
| Carpooled | 10.3%±2.5 pts | 9.3% | – |
| Public transportation | 0.1%±0.1 pts | 0.6% | – |
| Walked | 1.6%±1.0 pts | 2.0% | – |
| Worked from home | 7.9%±2.0 pts | 10.2% | +5.7 pts |
| Mean travel time to work | 23.7 min±1.7 | 24.0 min | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What are Marshall County's census tracts?
Marshall County is divided into 10 census tracts. Among those with a reliable estimate, median household income runs from $40,666 (Tract 9506.02) to $94,961 (Tract 9505.01).
| Tract 9501.0121157950101 | 2,718±415 | $59,236 |
|---|---|---|
| Tract 9501.0221157950102 | 2,299±245 | $45,000 |
| Tract 950221157950200 | 4,833±449 | $86,293 |
| Tract 950321157950300 | 4,222±643 | $67,667 |
| Tract 950421157950400 | 5,539±371 | $74,248 |
| Tract 9505.0121157950501 | 2,984±590 | $94,961 |
| Tract 9505.0221157950502 | 2,737±430 | $63,226 |
| Tract 9506.0121157950601 | 3,002±569 | $57,159 |
| Tract 9506.0221157950602 | 2,364±398 | $40,666 |
| Tract 9506.0321157950603 | 1,045±204 | $43,214 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · Check it at data.census.gov
How does Marshall County compare with Kentucky's other counties?
| Measure | Rank |
|---|---|
| Population | 32nd of 120 |
| Growth 2020-2025 | 74th of 120 |
| Residents per square mile | 25th of 120 |
| Median household income | 24th of 120 |
| Median home value | 40th of 120 |
| Median gross rent | 48th of 120 |
| Poverty rate | 103rd of 120 |
| Bachelor's degree or higher | 30th of 120 |
| Median age | 9th of 120 |
Source: PlainCities ranks from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Marshall County are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.