Osage County, Kansas Population 2026

Updated April 2026 · US Census ACS 2023 5-Year Estimates · 32nd-largest in Kansas

The population of Osage County, Kansas is 15,780 as of the 2023 American Community Survey, making it the 32nd-largest county in Kansas. The median household income is $70,216, the median home value is $142,800, and the median age is 42.8.

The population of Osage County has declined 3.3% since 2010 (16,274 → 15,737), a -0.24% annualized rate.

Osage County within Kansas · Source: US Census TIGER/Line via us-atlas

15,780

Population

-0.24%

Annual growth

People / sq mi

$70,216

Median Income

$142,800

Median Home Value

Osage County covers 706 sq mi of land at 22.4 people per square mile.

About Osage County, KS

Osage County is a county in Kansas with a population of 15,780. It ranks #32 among counties in Kansas by population. The median age is 42.8, older than the national median. The population is 50.8% male and 49.2% female.

The median household income in Osage County is $70,216, below the US median of $74,580. 7.3% of residents live below the federal poverty level. Home values sit at a median of $142,800, with monthly rent averaging $810. The homeownership rate of 80.1% is higher than the national rate of 64.8%.

Educational attainment in Osage County reflects 21.0% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 7.9% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 29.0 minutes each way.

Osage County Population History (2010-2024)

The county of Osage County had a population of 16,274 in 2010 and 15,737 in 2024, a -3.3% growth over 14 years. The peak was 16,342 in 2011. Average annual growth rate: -0.24%.

15,737

Population (2024)

16,274

Population (2010)

16,342

Peak (2011)

-0.24%

Avg Annual Growth

Year	Population	Change	Annual %	Source
2010	16,274	-	-	estimate
2011	16,342	+68	+0.42%	estimate
2012	16,179	-163	-1.00%	estimate
2013	16,084	-95	-0.59%	estimate
2014	15,973	-111	-0.69%	estimate
2015	15,867	-106	-0.66%	estimate
2016	15,836	-31	-0.20%	estimate
2017	15,842	+6	+0.04%	estimate
2018	15,921	+79	+0.50%	estimate
2019	15,906	-15	-0.09%	estimate
2020	15,740	-166	-1.04%	estimate
2021	15,754	+14	+0.09%	estimate
2022	15,690	-64	-0.41%	estimate
2023	15,798	+108	+0.69%	estimate
2024	15,737	-61	-0.39%	estimate

Race & Ethnicity

White	93.7%
Black or African American	0.5%
Asian	0.0%
Hispanic or Latino (any race)	1.8%
Two or More Races	0.0%

Age & Sex

42.8

Median Age

49.2%

Female

50.8%

Male

20.6%

Age 65+

Age Distribution

Under 5

5.2%

5–9

6.9%

10–14

6.7%

15–19

6.6%

20–24

4.9%

25–34

10.4%

35–44

11.5%

45–54

11.6%

55–59

7.3%

60–64

8.2%

65–74

12.7%

75–84

6.0%

85+

1.9%

Children (under 15): 18.8% · Seniors (65+): 20.6%

Income & Poverty

Median household income	$70,216$-2,423 vs state
Mean household income	$81,759
Per-capita income	$33,617
Poverty rate	7.3%-0.4% vs state
Unemployment rate	1.6%
Employment-to-population	60.0%

Top Industries by Employment

Professional & business services

24.0%

Retail trade

10.9%

Manufacturing

9.8%

Construction

9.2%

Finance & real estate

7.9%

Public administration

7.2%

Education & health care

5.9%

Arts, entertainment & food

4.8%

The largest employment sector in Osage County is professional & business services, accounting for 24.0% of workers.

How residents commute

0.2%

Drive alone

2.0%

Carpool

76.4%

Public transit

7.9%

Work from home

29.0 min

Avg commute

Housing

$142,800$-60,600 vs state

Median home value

$810

Median rent

80.1%

Homeownership rate

7,293

Total housing units

87.2%

Occupied

12.8%

Vacant

19.9%

Renter-occupied

Social & access

91.7%

With health insurance

91.5%

With broadband internet

21.7%

Foreign-born

8.4%

Veterans (18+)

16.4%

With a disability

97.9%

Speak language other than English at home

Education

92.4%

High School+

21.0%

Bachelor's+

Largest cities in Kansas

Wichita (396,488)Overland Park (197,199)Kansas City (154,776)Olathe (143,720)Topeka (126,103)Lawrence (95,459)Shawnee (68,175)Lenexa (57,986)Manhattan (53,951)Salina (46,432)All Kansas cities →

Other counties in Kansas

Johnson County (614,764)Sedgwick County (524,810)Shawnee County (178,315)Wyandotte County (167,277)Douglas County (119,547)Leavenworth County (82,493)Riley County (71,710)Butler County (67,916)Reno County (61,693)Saline County (53,801)All Kansas counties →

Part of Kansas

Kansas demographic profile All Kansas data →

Metro areas in Kansas

Kansas City (2,202,006)Wichita (648,935)Topeka (232,724)Joplin (202,258)Manhattan (133,413)St. Joseph (120,609)Lawrence (119,547)All US metros →

County rankings

US Counties by Population Richest US Counties by Median Household Income Expensive US Counties by Home Value Educated US Counties Counties With Highest Poverty Rates Youngest US Counties by Median Age Oldest US Counties by Median Age Cheapest US Counties by Median Home Value Racially Diverse US Counties Counties With Largest Hispanic Population All rankings →

Frequently Asked Questions

Osage County, Kansas has a population of 15,780 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 32nd-largest county in Kansas. Population density is 22 people per square mile.

The population of Osage County has declined 3.3% since 2010 (16,274 → 15,737), a -0.24% annualized rate.

The median household income in Osage County, Kansas is $70,216, with mean (average) household income of $81,759 and per-capita income of $33,617. 7.3% of residents live below the federal poverty level.

In Osage County, the largest racial and ethnic groups are White (93.7%), Hispanic or Latino (1.8%), Black or African American (0.5%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.

The median age in Osage County, Kansas is 42.8 years. Residents are 49.2% female and 50.8% male.

The median home value in Osage County is $142,800 and median monthly rent is $810. 80.1% of occupied housing units are owner-occupied. The county has 7,293 total housing units, 12.8% of which are vacant.

The largest employment sector in Osage County, Kansas is professional, scientific, and management services, employing 24.0% of workers. The unemployment rate is 1.6%.

Wichita is among the largest cities associated with Osage County, Kansas, with a population of 396,488.