• county
  • FIPS 20111
  • Largest town: Emporia

Lyon County, Kansas

Lyon County had 32,520 residents in the Census Vintage 2024 estimate, on 847.5 square miles of land. It ranks 18th of 105 in Kansas by population and 42nd by land area.

Population
32,520
#18 of 105 in Kansas · #1,381 in US
Area
847.5 sq mi
#42 of 105 in Kansas · #986 in US
Density
38 / sq mi
#17 of 105 in Kansas · #1,712 in US
Median household income
$55,659
#83 of 105 in Kansas · #2,265 in US

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

Lyon County within Kansas. Pin: Topeka.

Measure from here

Tools and pages that start from Lyon County

Lyon County population, land area and income

Lyon County had 32,520 residents in the Census Vintage 2024 estimate, on 847.5 square miles of land. It ranks 18th of 105 in Kansas by population and 42nd by land area. That works out to 38.4 people per square mile, below the US average of 96.3, and below the national county median.

The median county-equivalent in Kansas has 6,946 residents, so Lyon County is 4.7 times that size.

Its SAIPE 2023 median household income of $55,659 is below the national county median among 3,143 counties with an estimate.

National rank among 3,144

Population

32,520

3144th1st

1381st of 3,144 (US)

Land area

847 sq mi

3144th1st

986th of 3,144 (US)

Density

38.4 / sq mi

3144th1st

1712th of 3,144 (US)

Median household income

$55,659

3143rd1st

2265th of 3,143 (US)

Rank within Kansas (105)

Population

32,520

105th1st

18th of 105 (KS)

Land area

847 sq mi

105th1st

42nd of 105 (KS)

Density

38.4 / sq mi

105th1st

17th of 105 (KS)

Median household income

$55,659

105th1st

83rd of 105 (KS)

How Lyon County's population changed since 2020

Lyon County gained 407 residents between the July 2020 and July 2024 estimates, a rise of 1.3%. That ranks 16th of 105 in Kansas for growth. The median Kansas county changed by -1.0%, and the state as a whole by +1.1%.

Since the April 2020 estimates base, Lyon County recorded 1,491 births and 1,422 deaths, a natural change of +69. Net international migration added +815 and net domestic migration, people moving to or from other US counties, came to -551. The largest single component was international migration, which added 815 people.

32.1k202032.0k202132.0k202232.3k202332.5k2024
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
1,491
Deaths
1,422
Net international migration
+815
Net domestic migration
-551
Change, July 2023 to July 2024
+253

Where Lyon County is

The Census internal point of Lyon County is at 38.455400, -96.161600. It sits in UTM zone 14N. The map shades Kansas's 105 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.

Harper County: -1.0%Phillips County: -4.6%Seward County: -2.7%Grant County: -3.1%Pawnee County: -3.8%Haskell County: -4.5%Ness County: -2.3%Logan County: -1.8%Wichita County: -3.6%Greenwood County: -1.7%Stanton County: -0.7%Edwards County: -5.3%Gray County: +1.6%Franklin County: +1.0%Saline County: -1.5%Allen County: -0.9%Lyon County: +1.3%Cloud County: -3.3%Brown County: -3.6%Rice County: -1.1%Lincoln County: -0.6%Osborne County: -4.0%Rooks County: -2.8%Russell County: -0.8%Jefferson County: +0.0%Jewell County: -1.0%Lane County: -5.6%Sheridan County: -1.9%Gove County: -2.1%Trego County: -1.1%Montgomery County: -3.0%Sumner County: +0.1%Graham County: -1.5%Marion County: -1.0%Washington County: +0.8%Stevens County: -4.0%Kiowa County: -0.7%Mitchell County: +0.4%Cheyenne County: +1.3%Ellis County: +0.2%Rush County: -4.6%Scott County: -4.3%Comanche County: +0.7%Wallace County: -2.6%Nemaha County: -2.0%Linn County: +2.6%Ford County: -0.4%Dickinson County: +1.4%Ellsworth County: -0.9%Labette County: -2.3%Cowley County: -1.0%Neosho County: -2.2%Wilson County: -2.2%Thomas County: -1.7%Greeley County: -9.6%Osage County: -0.0%Finney County: +0.1%Kearny County: -3.8%Kingman County: -6.4%Republic County: -1.3%Ottawa County: +2.1%Smith County: -0.5%Crawford County: -0.1%Elk County: -1.5%Miami County: +4.4%Hodgeman County: -3.7%Morris County: -1.7%Morton County: -8.1%Harvey County: -1.0%Meade County: -4.2%Sedgwick County: +2.1%Geary County: -3.6%Woodson County: +0.4%Bourbon County: +0.6%Chase County: -2.6%Pratt County: -0.0%Reno County: -0.8%Chautauqua County: -1.2%Norton County: -2.1%Marshall County: -0.7%Doniphan County: +1.4%Cherokee County: -0.9%Barton County: -2.3%Riley County: +0.8%Butler County: +2.6%Stafford County: -3.7%Anderson County: +0.9%Sherman County: -1.8%Rawlins County: -5.5%Pottawatomie County: +5.7%McPherson County: +0.5%Coffey County: -0.7%Hamilton County: +0.0%Atchison County: -0.5%Shawnee County: -0.4%Leavenworth County: +3.3%Jackson County: +2.2%Clark County: -5.3%Douglas County: +2.7%Clay County: -1.9%Barber County: -3.2%Johnson County: +3.5%Wabaunsee County: +3.2%Decatur County: -1.1%Wyandotte County: +0.3%
Change 2020 to 2024
  1. < -3.6%
  2. < -1.7%
  3. < -0.7%
  4. < +0.6%
  5. ≥ +0.6%
no data

Orange pin: Lyon County internal point. Dark pin: Topeka.

Internal point

Decimal
38.455400, -96.161600
DMS
38°27'19.44"N 96°09'41.76"W
UTM
14N 747678.2E 4260161.6N
Geohash
9ygdgb96b
Plus code
86C5FR4Q+59

Towns in Lyon County

One incorporated place of 1,000+ people has residents in Lyon County, 24,354 people together, or 75% 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 Emporia with 24,354.

  1. 01Emporia24,354
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Lyon County

The Census 2024 county adjacency file lists 6 neighbors for Lyon County. The most populous is Osage County, KS, with 15,737 residents. Distances run between Census internal points in a straight line.

Distance to Topeka and the nearest big city

Topeka is 48.5 miles NNE of Lyon County's internal point in a straight line. The nearest place of 100,000 or more is Topeka, KS (population 125,467), 47.2 miles away. The nearest place of 10,000 or more is Emporia, KS (population 24,354), 4.0 miles away.

Lyon County FIPS code

The FIPS code of Lyon County is 20111: state code 20 for Kansas plus county code 111. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $55,659.

Questions people ask

What is the population of Lyon County, Kansas?

The Census Vintage 2024 estimate for July 1, 2024 is 32,520. That is up 407 people (1.3%) from the July 2020 estimate of 32,113.

What is the FIPS code of Lyon County?

20111. The first two digits (20) are Kansas; the last three (111) identify the county.

What is the largest town in Lyon County?

Emporia, with 24,354 residents inside Lyon County in 2024.

Which counties border Lyon County?

6 county-equivalents border it in the Census 2024 adjacency file: Osage County, KS; Coffey County, KS; Wabaunsee County, KS; Greenwood County, KS; Morris County, KS; Chase County, KS.

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.