Olathe, Kansas Population 2026

Updated April 2026 · US Census ACS 2023 5-Year Estimates

The population of Olathe, Kansas is 143,720 as of the 2023 American Community Survey, making it the 4th-largest city in Kansas. The median household income is $112,232, the median home value is $340,600, and the median age is 36.6.

The population has grown 18.0% since 2010 (126,269 → 149,035).

143,720

Population

2231

People / sq mi

$112,232

Median Income

$340,600

Median Home Value

Olathe covers 64.4 sq mi of land at 2231 people per square mile.

About Olathe, KS

Olathe is a city in Kansas with a population of 143,720. It ranks #4 among cities in Kansas by population. The median age is 36.6, younger than the national median. The population is 50.0% male and 50.0% female.

The median household income in Olathe is $112,232, above the US median of $74,580. 4.0% of residents live below the federal poverty level. Home values sit at a median of $340,600, with monthly rent averaging $1,314. The homeownership rate of 73.7% is higher than the national rate of 64.8%.

Educational attainment in Olathe reflects 49.4% of adults 25 and older holding a bachelor's degree or higher, above the national average of 34.3%. Roughly 18.8% of workers primarily work from home, noticeably above the national work-from-home rate of 14.2%. The average commute is 20.7 minutes each way.

Olathe city Population History (2010-2024)

The city of Olathe city had a population of 126,269 in 2010 and 149,035 in 2024, a 18.0% growth over 14 years. The peak was 149,035 in 2024. Average annual growth rate: 1.19%.

149,035

Population (2024)

126,269

Population (2010)

149,035

Peak (2024)

1.19%

Avg Annual Growth

Year	Population	Change	Annual %	Source
2010	126,269	-	-	estimate
2011	128,325	+2,056	+1.63%	estimate
2012	129,963	+1,638	+1.28%	estimate
2013	131,798	+1,835	+1.41%	estimate
2014	132,839	+1,041	+0.79%	estimate
2015	134,298	+1,459	+1.10%	estimate
2016	135,928	+1,630	+1.21%	estimate
2017	137,526	+1,598	+1.18%	estimate
2018	139,758	+2,232	+1.62%	estimate
2019	140,545	+787	+0.56%	estimate
2020	141,560	+1,015	+0.72%	estimate
2021	142,958	+1,398	+0.99%	estimate
2022	144,741	+1,783	+1.25%	estimate
2023	147,145	+2,404	+1.66%	estimate
2024	149,035	+1,890	+1.28%	estimate

Race & Ethnicity

White	78.6%
Black or African American	4.8%
Asian	0.0%
Hispanic or Latino (any race)	1.7%
Two or More Races	0.0%

Economy & Income

$112,232

Median Household Income

$48,655

Per Capita Income

4.0%

Poverty Rate

2.1%

Unemployment Rate

Housing

$340,600

Median Home Value

$1,314

Median Rent

73.7%

Owner-Occupied

Education

94.7%

High School+

49.4%

Bachelor's+

Commute

0.2%

Drive Alone

71.5%

Public Transit

18.8%

Work From Home

20.7 min

Avg Commute

Community Profile

41.5%

Foreign Born

84.4%

Non-English at Home

5.1%

Veterans

9.5%

With Disability

93.1%

Health Insurance

98.1%

Internet Access

Employment by Industry

Professional, Scientific & Management	22.4%
Finance, Insurance & Real Estate	15.4%
Manufacturing	9.9%
Information	9.8%
Education, Health Care & Social Services	7.3%
Retail Trade	5.3%
Construction	5.3%
Arts, Entertainment & Food Services	4.1%
Public Administration	3.5%
Transportation & Warehousing	2.9%
Agriculture & Mining	0.6%

Largest cities in Kansas

Wichita (396,488)Overland Park (197,199)Kansas City (154,776)Topeka (126,103)Lawrence (95,459)Shawnee (68,175)Lenexa (57,986)Manhattan (53,951)Salina (46,432)Hutchinson (39,837)View all Kansas cities →

Largest counties in Kansas

Johnson County (614,764)Sedgwick County (524,810)Shawnee County (178,315)Wyandotte County (167,277)Douglas County (119,547)

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 →

City rankings

US Cities by Population Cities With Highest Median Income Expensive US Cities by Home Value Youngest US Cities by Median Age Racially Diverse US Cities Cities With Highest Rent Educated US Cities Cities With Highest Work From Home Rates Cheapest US Cities by Median Home Value Cities With Lowest Rent All rankings →

Common questions about Olathe, KS

What is the population of Olathe city, KS?What is the median household income in Olathe city, KS?What is the median home value in Olathe city, KS?What are the demographics of Olathe city, KS?What is the cost of living in Olathe city, KS?Is Olathe city, KS growing?

Frequently Asked Questions

Olathe, Kansas has a population of 143,720 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 4th-largest city in Kansas.

The median household income in Olathe, Kansas is $112,232, with 4.0% of residents living below the federal poverty level.

The median home value in Olathe, Kansas is $340,600, with median monthly rent at $1,314 and a homeownership rate of 73.7%.

The median age in Olathe, Kansas is 36.6 years. The population is 50.0% male and 50.0% female.

The population has grown 18.0% since 2010 (126,269 → 149,035).