Lyon County, Kansas Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 18th-largest in Kansas
The population of Lyon County, Kansas is 32,145 as of the 2023 American Community Survey, making it the 18th-largest county in Kansas. The median household income is $59,078, the median home value is $142,200, and the median age is 33.1.
The population of Lyon County has declined 3.3% since 2010 (33,647 → 32,520), a -0.24% annualized rate.
32,145
Population
-0.24%
Annual growth
38
People / sq mi
$59,078
Median Income
$142,200
Median Home Value
Lyon County covers 847 sq mi of land at 37.9 people per square mile.
About Lyon County, KS
Lyon County is a county in Kansas with a population of 32,145. It ranks #18 among counties in Kansas by population. The median age is 33.1, younger than the national median. The population is 48.9% male and 51.1% female.
The median household income in Lyon County is $59,078, below the US median of $74,580. 8.7% of residents live below the federal poverty level. Home values sit at a median of $142,200, with monthly rent averaging $796. The homeownership rate of 58.2% is lower than the national rate of 64.8%.
Educational attainment in Lyon County reflects 27.7% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 6.4% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 15.2 minutes each way.
Lyon County Population History (2010-2024)
The county of Lyon County had a population of 33,647 in 2010 and 32,520 in 2024, a -3.3% growth over 14 years. The peak was 33,651 in 2011. Average annual growth rate: -0.24%.
32,520
Population (2024)
33,647
Population (2010)
33,651
Peak (2011)
-0.24%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 33,647 |
| 2011 | 33,651 |
| 2012 | 33,544 |
| 2013 | 33,478 |
| 2014 | 33,148 |
| 2015 | 33,142 |
| 2016 | 33,367 |
| 2017 | 33,246 |
| 2018 | 33,302 |
| 2019 | 33,224 |
| 2020 | 32,113 |
| 2021 | 32,034 |
| 2022 | 31,994 |
| 2023 | 32,267 |
| 2024 | 32,520 |
Race & Ethnicity
| White | 75.0% |
| Black or African American | 1.6% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 3.2% |
| Two or More Races | 0.0% |
Age & Sex
33.1
Median Age
51.1%
Female
48.9%
Male
15.7%
Age 65+
Age Distribution
Children (under 15): 18.5% · Seniors (65+): 15.7%
Income & Poverty
| Median household income | $59,078$-13,561 vs state |
| Mean household income | $72,659 |
| Per-capita income | $29,881 |
| Poverty rate | 8.7%+1.0% vs state |
| Unemployment rate | 1.7% |
| Employment-to-population | 66.3% |
Top Industries by Employment
The largest employment sector in Lyon County is professional & business services, accounting for 26.0% of workers.
How residents commute
0.2%
Drive alone
4.4%
Carpool
76.6%
Public transit
6.4%
Work from home
15.2 min
Avg commute
Housing
$142,200$-61,200 vs state
Median home value
$796
Median rent
58.2%
Homeownership rate
14,998
Total housing units
88.8%
Occupied
11.2%
Vacant
41.8%
Renter-occupied
Social & access
89.0%
With health insurance
94.4%
With broadband internet
22.5%
Foreign-born
6.4%
Veterans (18+)
13.4%
With a disability
83.8%
Speak language other than English at home
Education
89.2%
High School+
27.7%
Bachelor's+
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County rankings
Frequently Asked Questions
Lyon County, Kansas has a population of 32,145 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 18th-largest county in Kansas. Population density is 38 people per square mile.
The population of Lyon County has declined 3.3% since 2010 (33,647 → 32,520), a -0.24% annualized rate.
The median household income in Lyon County, Kansas is $59,078, with mean (average) household income of $72,659 and per-capita income of $29,881. 8.7% of residents live below the federal poverty level.
In Lyon County, the largest racial and ethnic groups are White (75.0%), Hispanic or Latino (3.2%), Black or African American (1.6%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Lyon County, Kansas is 33.1 years. Residents are 51.1% female and 48.9% male.
The median home value in Lyon County is $142,200 and median monthly rent is $796. 58.2% of occupied housing units are owner-occupied. The county has 14,998 total housing units, 11.2% of which are vacant.
The largest employment sector in Lyon County, Kansas is professional, scientific, and management services, employing 26.0% of workers. The unemployment rate is 1.7%.
Wichita is among the largest cities associated with Lyon County, Kansas, with a population of 396,488.
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Population, race, income, age, and trends across Kansas
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.