• county
  • FIPS 21143
  • Largest town: Eddyville

Lyon County, Kentucky

Lyon County had 9,078 residents in the Census Vintage 2024 estimate, on 213.8 square miles of land. It ranks 102nd of 120 in Kentucky by population and 95th by land area.

Population
9,078
#102 of 120 in Kentucky · #2,489 in US
Area
213.8 sq mi
#95 of 120 in Kentucky · #2,978 in US
Density
42 / sq mi
#79 of 120 in Kentucky · #1,618 in US
Median household income
$63,989
#31 of 120 in Kentucky · #1,458 in US

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

Lyon County within Kentucky. Pin: Frankfort.

Measure from here

Tools and pages that start from Lyon County

Lyon County population, land area and income

Lyon County had 9,078 residents in the Census Vintage 2024 estimate, on 213.8 square miles of land. It ranks 102nd of 120 in Kentucky by population and 95th by land area. That works out to 42.5 people per square mile, below the US average of 96.3, and below the national county median.

The median county-equivalent in Kentucky has 19,740 residents, so Lyon County has 46% of the typical county's population.

Its SAIPE 2023 median household income of $63,989 is above the national county median among 3,143 counties with an estimate.

National rank among 3,144

Population

9,078

3144th1st

2489th of 3,144 (US)

Land area

214 sq mi

3144th1st

2978th of 3,144 (US)

Density

42.5 / sq mi

3144th1st

1618th of 3,144 (US)

Median household income

$63,989

3143rd1st

1458th of 3,143 (US)

Rank within Kentucky (120)

Population

9,078

120th1st

102nd of 120 (KY)

Land area

214 sq mi

120th1st

95th of 120 (KY)

Density

42.5 / sq mi

120th1st

79th of 120 (KY)

Median household income

$63,989

120th1st

31st of 120 (KY)

How Lyon County's population changed since 2020

Lyon County gained 400 residents between the July 2020 and July 2024 estimates, a rise of 4.6%. That ranks 10th 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, Lyon County recorded 214 births and 576 deaths, a natural change of -362. Net international migration added +26 and net domestic migration, people moving to or from other US counties, came to +668. The largest single component was domestic migration, which added 668 people.

8,67820208,43420219,11920229,19020239,0782024
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
214
Deaths
576
Net international migration
+26
Net domestic migration
+668
Change, July 2023 to July 2024
-112

Where Lyon County is

The Census internal point of Lyon County is at 37.024000, -88.083400. 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 Lyon 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: Lyon County internal point. Dark pin: Frankfort.

Internal point

Decimal
37.024000, -88.083400
DMS
37°01'26.40"N 88°05'0.24"W
UTM
16N 403632.0E 4098083.4N
Geohash
dn96es58k
Plus code
869H2WF8+JJ

Towns in Lyon County

One incorporated place of 1,000+ people has residents in Lyon County, 2,332 people together, or 26% of the county. Each figure counts only the part of the town inside Lyon County; towns marked "part" extend into another county. The largest is Eddyville with 2,332.

  1. 01Eddyville2,332
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Lyon County

The Census 2024 county adjacency file lists 5 neighbors for Lyon County. The most populous is Marshall County, KY, with 31,734 residents. Distances run between Census internal points in a straight line.

Distance to Frankfort and the nearest big city

Frankfort is 193.1 miles ENE of Lyon County's internal point in a straight line. The nearest place of 100,000 or more is Clarksville, TN (population 185,690), 51.6 miles away. The nearest place of 10,000 or more is Paducah, KY (population 26,712), 31.1 miles away.

Lyon County FIPS code

The FIPS code of Lyon County is 21143: state code 21 for Kentucky plus county code 143. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $63,989.

Questions people ask

What is the population of Lyon County, Kentucky?

The Census Vintage 2024 estimate for July 1, 2024 is 9,078. That is up 400 people (4.6%) from the July 2020 estimate of 8,678.

What is the FIPS code of Lyon County?

21143. The first two digits (21) are Kentucky; the last three (143) identify the county.

What is the largest town in Lyon County?

Eddyville, with 2,332 residents inside Lyon County in 2024.

Which counties border Lyon County?

5 county-equivalents border it in the Census 2024 adjacency file: Marshall County, KY; Trigg County, KY; Caldwell County, KY; Crittenden 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.