• county
  • FIPS 21157
  • Largest town: Benton

Marshall County, Kentucky

Marshall County had 31,734 residents in the Census Vintage 2024 estimate, on 302.1 square miles of land. It ranks 32nd of 120 in Kentucky by population and 64th by land area.

Population
31,734
#32 of 120 in Kentucky · #1,397 in US
Area
302.1 sq mi
#64 of 120 in Kentucky · #2,807 in US
Density
105 / sq mi
#26 of 120 in Kentucky · #870 in US
Median household income
$61,426
#39 of 120 in Kentucky · #1,697 in US

Census Vintage 2024 estimates · SAIPE 2023 income · 2024 Gazetteer land area

Marshall County within Kentucky. Pin: Frankfort.

Measure from here

Tools and pages that start from Marshall County

Marshall County population, land area and income

Marshall County had 31,734 residents in the Census Vintage 2024 estimate, on 302.1 square miles of land. It ranks 32nd of 120 in Kentucky by population and 64th by land area. That works out to 105.0 people per square mile, near the US average of 96.3, and above the national county median.

The median county-equivalent in Kentucky has 19,740 residents; Marshall County is somewhat larger.

Its SAIPE 2023 median household income of $61,426 is below the national county median among 3,143 counties with an estimate.

National rank among 3,144

Population

31,734

3144th1st

1397th of 3,144 (US)

Land area

302 sq mi

3144th1st

2807th of 3,144 (US)

Density

105.0 / sq mi

3144th1st

870th of 3,144 (US)

Median household income

$61,426

3143rd1st

1697th of 3,143 (US)

Rank within Kentucky (120)

Population

31,734

120th1st

32nd of 120 (KY)

Land area

302 sq mi

120th1st

64th of 120 (KY)

Density

105.0 / sq mi

120th1st

26th of 120 (KY)

Median household income

$61,426

120th1st

39th of 120 (KY)

How Marshall County's population changed since 2020

Marshall County gained 46 residents between the July 2020 and July 2024 estimates, a rise of 0.1%. That ranks 74th of 120 in Kentucky for growth. The median Kentucky county changed by +1.4%, and the state as a whole by +1.8%.

Since the April 2020 estimates base, Marshall County recorded 1,254 births and 1,956 deaths, a natural change of -702. Net international migration added -8 and net domestic migration, people moving to or from other US counties, came to +796. The largest single component was domestic migration, which added 796 people.

31.7k202031.8k202131.8k202231.7k202331.7k2024
Census Vintage 2024 county estimates for July 1 of each year. The axis starts above zero so year-to-year changes are visible.

Components of change, April 2020 to July 2024

Births
1,254
Deaths
1,956
Net international migration
-8
Net domestic migration
+796
Change, July 2023 to July 2024
+17

Where Marshall County is

The Census internal point of Marshall County is at 36.882000, -88.332800. It sits in UTM zone 16N. The map shades Kentucky's 120 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Marshall County outlined. Dots are towns of 1,000+ people with residents in it.

Adair County: +1.9%Kenton County: +3.3%Owen County: +1.2%Morgan County: +4.1%Bracken County: +1.1%Edmonson County: +4.0%Trigg County: +3.4%Jackson County: +3.0%Spencer County: +6.8%Clark County: +1.7%Jessamine County: +6.6%Green County: +3.8%Henry County: +3.2%Graves County: +0.8%Webster County: -1.3%Washington County: +1.9%Ohio County: +0.8%Knott County: -5.1%Meade County: +1.4%Carroll County: +2.5%Scott County: +7.2%Lincoln County: +2.7%Greenup County: -1.7%Boyle County: +2.1%Hardin County: +1.8%Nelson County: +4.1%Hart County: +3.2%Christian County: -2.4%Carlisle County: -0.6%Crittenden County: -0.2%Elliott County: -1.0%Garrard County: +6.3%Larue County: +1.7%Lee County: -0.7%Leslie County: -7.1%Hancock County: -1.0%Lewis County: -1.6%Lyon County: +4.6%McLean County: -0.1%Magoffin County: -4.2%Martin County: -4.9%Mason County: -1.1%Rockcastle County: +1.0%Menifee County: +3.2%Russell County: +2.6%Whitley County: +1.5%Todd County: +3.9%Union County: -3.5%Wolfe County: -2.9%Bell County: -3.9%Boyd County: -0.9%Butler County: +1.9%Metcalfe County: +2.7%Grant County: +2.8%Simpson County: +3.7%Pike County: -5.2%Gallatin County: +1.5%Harlan County: -6.4%Fayette County: +2.1%Logan County: +3.5%Muhlenberg County: -1.2%Bath County: +1.8%Mercer County: +3.8%Barren County: +2.5%Franklin County: +1.6%Bullitt County: +4.2%Boone County: +5.6%Campbell County: +0.9%Jefferson County: +1.4%Wayne County: +0.4%Ballard County: -1.1%Anderson County: +4.1%Pulaski County: +2.7%Knox County: -1.7%Laurel County: +1.0%Breckinridge County: +3.8%Oldham County: +4.2%Letcher County: -6.2%Lawrence County: -3.1%McCracken County: -0.6%Nicholas County: +3.7%Owsley County: -2.6%Powell County: -1.3%Bourbon County: +0.2%Calloway County: +3.7%Henderson County: -1.1%Clinton County: -0.5%Warren County: +9.6%Montgomery County: +2.4%Floyd County: -3.5%Woodford County: +3.1%Hopkins County: -0.3%Johnson County: -2.4%Marshall County: +0.1%Estill County: -1.1%Cumberland County: +3.2%Fleming County: +3.3%Madison County: +7.1%Carter County: -1.9%Allen County: +7.1%Daviess County: +1.0%Harrison County: +4.3%Perry County: -5.7%Fulton County: -3.5%Clay County: -3.5%Robertson County: +9.1%Trimble County: +1.5%Taylor County: +3.1%Shelby County: +3.9%McCreary County: -0.2%Breathitt County: -6.5%Livingston County: -0.6%Hickman County: -3.0%Rowan County: -0.2%Casey County: +0.2%Monroe County: -1.4%Marion County: +1.3%Grayson County: +2.3%Caldwell County: -0.2%Pendleton County: +1.3%
Change 2020 to 2024
  1. < -1.6%
  2. < +0.2%
  3. < +1.9%
  4. < +3.7%
  5. ≥ +3.7%
no data

Orange pin: Marshall County internal point. Dark pin: Frankfort.

Internal point

Decimal
36.882000, -88.332800
DMS
36°52'55.20"N 88°19'58.08"W
UTM
16N 381226.7E 4082611.6N
Geohash
dn91vfnj0
Plus code
868HVMJ8+RV

Towns in Marshall County

2 incorporated places of 1,000+ people have residents in Marshall County, 7,243 people together, or 23% of the county. Each figure counts only the part of the town inside Marshall County; towns marked "part" extend into another county. The largest is Benton with 4,726.

  1. 01Benton4,726
  2. 02Calvert City2,517
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Marshall County

The Census 2024 county adjacency file lists 6 neighbors for Marshall County. The most populous is McCracken County, KY, with 67,550 residents. Distances run between Census internal points in a straight line.

Distance to Frankfort and the nearest big city

Frankfort is 209.8 miles ENE of Marshall County's internal point in a straight line. The nearest place of 100,000 or more is Clarksville, TN (population 185,690), 58.9 miles away. The nearest place of 10,000 or more is Murray, KY (population 18,567), 18.5 miles away.

Marshall County FIPS code

The FIPS code of Marshall County is 21157: state code 21 for Kentucky plus county code 157. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $61,426.

Questions people ask

What is the population of Marshall County, Kentucky?

The Census Vintage 2024 estimate for July 1, 2024 is 31,734. That is up 46 people (0.1%) from the July 2020 estimate of 31,688.

What is the FIPS code of Marshall County?

21157. The first two digits (21) are Kentucky; the last three (157) identify the county.

What is the largest town in Marshall County?

Benton, with 4,726 residents inside Marshall County in 2024.

Which counties border Marshall County?

6 county-equivalents border it in the Census 2024 adjacency file: McCracken County, KY; Calloway County, KY; Graves County, KY; Trigg County, KY; Lyon County, KY; Livingston County, KY.

Sources and data as of

Data as of: Census Vintage 2024 population estimates, 2024 Gazetteer land area and internal points, SAIPE 2023 median household income.

  1. 01Census Vintage 2024 county population estimates
  2. 02Census 2024 Gazetteer, counties
  3. 03Census SAIPE 2023 state and county estimates
  4. 04Census Vintage 2024 subcounty population estimates
  5. 05Census 2024 county adjacency file
  6. 06Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.