Seward County, Kansas Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 26th-largest in Kansas
The population of Seward County, Kansas is 21,640 as of the 2023 American Community Survey, making it the 26th-largest county in Kansas. The median household income is $62,269, the median home value is $134,000, and the median age is 31.0.
The population of Seward County has declined 7.4% since 2010 (22,972 → 21,276), a -0.55% annualized rate.
21,640
Population
-0.55%
Annual growth
34
People / sq mi
$62,269
Median Income
$134,000
Median Home Value
Seward County covers 640 sq mi of land at 33.8 people per square mile.
About Seward County, KS
Seward County is a county in Kansas with a population of 21,640. It ranks #26 among counties in Kansas by population. The median age is 31.0, younger than the national median. The population is 52.5% male and 47.5% female.
The median household income in Seward County is $62,269, below the US median of $74,580. 10.8% of residents live below the federal poverty level. Home values sit at a median of $134,000, with monthly rent averaging $924. The homeownership rate of 61.2% is lower than the national rate of 64.8%.
Educational attainment in Seward County reflects 12.7% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 3.0% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 16.5 minutes each way.
Seward County Population History (2010-2024)
The county of Seward County had a population of 22,972 in 2010 and 21,276 in 2024, a -7.4% growth over 14 years. The peak was 23,358 in 2012. Average annual growth rate: -0.54%.
21,276
Population (2024)
22,972
Population (2010)
23,358
Peak (2012)
-0.54%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 22,972 |
| 2011 | 23,131 |
| 2012 | 23,358 |
| 2013 | 23,318 |
| 2014 | 23,308 |
| 2015 | 23,283 |
| 2016 | 22,907 |
| 2017 | 22,239 |
| 2018 | 21,904 |
| 2019 | 21,421 |
| 2020 | 21,857 |
| 2021 | 21,764 |
| 2022 | 21,326 |
| 2023 | 21,209 |
| 2024 | 21,276 |
Race & Ethnicity
| White | 40.5% |
| Black or African American | 2.7% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 2.4% |
| Two or More Races | 0.0% |
Age & Sex
31.0
Median Age
47.5%
Female
52.5%
Male
10.4%
Age 65+
Age Distribution
Children (under 15): 25.6% · Seniors (65+): 10.4%
Income & Poverty
| Median household income | $62,269$-10,370 vs state |
| Mean household income | $78,653 |
| Per-capita income | $29,053 |
| Poverty rate | 10.8%+3.1% vs state |
| Unemployment rate | 3.0% |
| Employment-to-population | 66.9% |
Top Industries by Employment
The largest employment sector in Seward County is manufacturing, accounting for 27.4% of workers.
How residents commute
0.0%
Drive alone
1.9%
Carpool
77.3%
Public transit
3.0%
Work from home
16.5 min
Avg commute
Housing
$134,000$-69,400 vs state
Median home value
$924
Median rent
61.2%
Homeownership rate
8,299
Total housing units
86.9%
Occupied
13.1%
Vacant
38.8%
Renter-occupied
Social & access
86.1%
With health insurance
93.1%
With broadband internet
21.0%
Foreign-born
2.2%
Veterans (18+)
10.7%
With a disability
40.7%
Speak language other than English at home
Education
71.9%
High School+
12.7%
Bachelor's+
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County rankings
Frequently Asked Questions
Seward County, Kansas has a population of 21,640 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 26th-largest county in Kansas. Population density is 34 people per square mile.
The population of Seward County has declined 7.4% since 2010 (22,972 → 21,276), a -0.55% annualized rate.
The median household income in Seward County, Kansas is $62,269, with mean (average) household income of $78,653 and per-capita income of $29,053. 10.8% of residents live below the federal poverty level.
In Seward County, the largest racial and ethnic groups are White (40.5%), Black or African American (2.7%), Hispanic or Latino (2.4%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Seward County, Kansas is 31.0 years. Residents are 47.5% female and 52.5% male.
The median home value in Seward County is $134,000 and median monthly rent is $924. 61.2% of occupied housing units are owner-occupied. The county has 8,299 total housing units, 13.1% of which are vacant.
The largest employment sector in Seward County, Kansas is manufacturing, employing 27.4% of workers. The unemployment rate is 3.0%.
Wichita is among the largest cities associated with Seward County, Kansas, with a population of 396,488.
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Statewide data for Kansas
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.