City · Kansas
Olathe, Kansas
Olathe, city, in Johnson County, Kansas. Olathe had 150,025 residents on July 1, 2025 by the Census Bureau's estimate, up 6.2% since 2020; the 2020 Census counted 141,290 and the ACS 2020-2024 5-year estimates put it at 145,057 (±105). GEOID 2052575.
Residents, July 2025 estimate
150,025
Census Bureau estimate (no margin published)
2020 Census count: 141,290 · ACS 2020-2024: 145,057 ±105
Median household income
$114,009
±$2,589 (90% margin)
Kansas: $74,275
Median home value
$364,700
±$5,272 (90% margin)
Kansas: $217,200
Median gross rent
$1,314
±$49 (90% margin)
Kansas: $1,060
Where is Olathe and what county is it in?
Olathe is a city in Johnson County, Kansas. It covers 64.4 square miles of land, 2,194 residents per square mile in 2020.
Olathe is in the Kansas City, MO-KS metropolitan statistical area, which takes in 14 counties (Census Bureau delineation, July 2023).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Olathe, and is it growing?
The Census Bureau estimates that 150,025 people lived in Olathe on July 1, 2025, up 6.2% since 2020, faster than Kansas (+1.3%). The 2020 Census counted 141,290 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 145,057 (±105).
| Measure | Olathe | Johnson County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 145,057 ±105 | 620,631 | +7,439 |
| Households | 53,072 ±860 | 249,531 | +4,845 |
| Average household size | 2.70 ±0.04 | 2.46 | −0.12 |
| Housing units | 54,594 ±895 | 259,655 | +4,746 |
Olathe's population since 2000
From 92,962 in 2000 to 150,025 in 2025: up 61.4%. The 2000, 2010 and 2020 figures are census counts, each for Olathe as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Olathe?
The median resident of Olathe is 37.2 years old; 26.0% are under 18 and 13.8% are 65 or older. The largest group is non-Hispanic white residents at 72.4%, then Hispanic or Latino residents (of any race) at 12.6%. 11.2% of residents were born outside the United States.
| Measure | Olathe | Johnson County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 37.2 ±0.6 | 38.6 | +1.8 |
| Under 18 years | 26.0% ±0.9 pts | 23.5% | – |
| 65 years and over | 13.8% ±0.7 pts | 16.0% | – |
| Male | 49.6% ±0.7 pts | 49.4% | – |
| Hispanic or Latino (any race) | 12.6% ±1.1 pts | 9.3% | no clear change |
| White alone, not Hispanic | 72.4% ±1.3 pts | 76.1% | −2.7 pts |
| Black or African American alone, not Hispanic | 5.3% ±0.6 pts | 4.8% | no clear change |
| Asian alone, not Hispanic | 4.3% ±0.6 pts | 5.2% | no clear change |
| American Indian and Alaska Native alone, not Hispanic | 0.1% ±0.1 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.1 pts | 0.0% | – |
| Two or more races, not Hispanic | 4.4% ±0.5 pts | 4.0% | – |
| Some other race alone, not Hispanic | 0.8% ±0.4 pts | 0.4% | – |
| Born outside the United States | 11.2% ±1.1 pts | 9.2% | no clear change |
| Speak a language other than English at home (age 5+) | 15.5% ±1.3 pts | 12.1% | – |
| Civilian veterans (age 18+) | 5.0% ±0.5 pts | 5.3% | – |
| With a disability | 9.7% ±0.7 pts | 9.0% | – |
| No health insurance coverage | 7.2% ±0.9 pts | 4.9% | no clear change |
| High school graduate or higher (age 25+) | 94.6% ±0.8 pts | 96.6% | – |
| Bachelor's degree or higher (age 25+) | 50.5% ±1.8 pts | 57.6% | no clear change |
| Graduate or professional degree (age 25+) | 19.1% ±1.3 pts | 22.9% | – |
| Lived in the same house a year earlier | 89.2% ±1.0 pts | 87.3% | – |
| Moved from another state in the past year | 2.2% ±0.5 pts | 4.0% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Olathe earn?
Half of Olathe's 53,072 households earn less than $114,009 a year (±$2,589), against $109,208 in Johnson County and $74,275 in Kansas. In 2015-2019 it was $111,298 in 2024 dollars; the margins of error cannot tell the two periods apart. 5.6% of residents live below the poverty line.
| Measure | Olathe | Johnson County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $114,009 ±$2,589 | $109,208 | no clear change |
| Mean household income | $137,006 ±$4,591 | $146,136 | – |
| Per capita income | $50,628 ±$1,537 | $60,137 | +$4,255 |
| People below the poverty line | 5.6% ±0.7 pts | 5.4% | no clear change |
| Children under 18 below the poverty line | 5.5% ±1.2 pts | 5.2% | −2.4 pts |
| Households receiving SNAP | 2.0% ±0.4 pts | 2.0% | – |
| Households with a computer | 98.1% ±0.6 pts | 97.9% | – |
| Households with a broadband subscription | 95.7% ±0.8 pts | 95.9% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Olathe?
Owners occupy 74.8% of Olathe's occupied homes and renters 25.2%. The median owner-occupied home is valued at $364,700 by its owner (±$5,272). The median renter pays $1,314 a month including utilities, and 31.1% of renters pay 35% or more of their income on rent.
| Measure | Olathe | Johnson County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $364,700 ±$5,272 | $391,200 | +$71,672 |
| Median gross rent | $1,314 ±$49 | $1,434 | no clear change |
| Renters paying 35% or more of income on rent | 31.1% ±3.3 pts | 32.9% | no clear change |
| Median monthly owner costs, with a mortgage | $2,142 ±$40 | $2,254 | – |
| Owner-occupied homes | 74.8% ±1.4 pts | 68.5% | +2.5 pts |
| Renter-occupied homes | 25.2% ±1.4 pts | 31.5% | – |
| Housing units | 54,594 ±895 | 259,655 | +4,746 |
| Homeowner vacancy rate | 0.4% ±0.3 pts | 0.4% | – |
| Rental vacancy rate | 4.9% ±1.4 pts | 5.5% | – |
| Single-family detached homes | 71.6% ±1.5 pts | 66.2% | – |
| Mobile homes | 1.3% ±0.4 pts | 0.7% | – |
| Built 2020 or later | 3.1% ±0.5 pts | 2.6% | – |
| Built 2010 to 2019 | 12.2% ±1.0 pts | 11.8% | – |
| Built 1939 or earlier | 1.6% ±0.4 pts | 2.6% | – |
| Households with no vehicle | 3.2% ±0.6 pts | 3.5% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Olathe building?
Builders took permits for 636 new housing units in Olathe in 2025 (527 in single-family houses), 4.2 per 1,000 residents against 3.5 across Kansas.
Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.
Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Olathe work and get to work?
68.6% of Olathe's workers drive alone and 20.9% work from home. The average trip to work takes 20.6 minutes. The unemployment rate in 2020-2024 averaged 2.7%.
| Measure | Olathe | Johnson County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 72.9% ±1.1 pts | 71.7% | – |
| Unemployment rate | 2.7% ±0.6 pts | 3.2% | no clear change |
| Drove alone to work | 68.6% ±1.5 pts | 69.5% | – |
| Carpooled | 7.8% ±1.0 pts | 5.9% | – |
| Public transportation | 0.2% ±0.1 pts | 0.2% | – |
| Walked | 1.0% ±0.3 pts | 0.9% | – |
| Worked from home | 20.9% ±1.3 pts | 22.4% | +14.9 pts |
| Mean travel time to work | 20.6 min ±0.7 | 20.6 min | −1.1 min |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in Olathe?
32 census tracts lie mostly in Olathe, and 7 more reach into it (2020 census blocks). Their median household incomes run from $49,239 (Tract 535.55) to $183,125 (Tract 528.04).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 535.09Johnson County | 6,477 | $100,748 |
| Tract 528.05Johnson County | 7,661 | $142,286 |
| Tract 528.04Johnson County | 6,457 | $183,125 |
| Tract 535.08Johnson County | 5,981 | $123,393 |
| Tract 535.07Johnson County | 5,892 | $117,072 |
| Tract 534.26Johnson County | 5,706 | $153,333 |
| Tract 528.06Johnson County | 5,563 | $133,036 |
| Tract 536.04Johnson County | 5,537 | $109,840 |
| Tract 529.08Johnson County | 5,473 | $75,455 |
| Tract 535.10Johnson County | 5,307 | $141,488 |
| Tract 528.07Johnson County | 5,156 | $175,075 |
| Tract 529.10Johnson County | 5,102 | $141,847 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Olathe) · Census block assignment files
How does Olathe compare with other places in Kansas?
By the Census Bureau's July 2025 estimates, Olathe is the 183rd-most populous of the 19,476 U.S. incorporated places that have one and the 4th-most populous of 625 in Kansas.
Olathe ranks 28th of 374 places in Kansas with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 4th | 625 |
| Growth 2020-2025 (PEP) | 28th | 373 |
| Residents per square mile | 21st | 376 |
| Median household income | 28th | 374 |
| Per capita income | 40th | 375 |
| Median home value | 29th | 370 |
| Median gross rent | 38th | 333 |
| Poverty rate | 226th | 266 |
| Bachelor's degree or higher | 29th | 374 |
| Median age | 250th | 376 |
| Owner-occupied share | 212th | 374 |
| Work from home | 17th | 233 |
| Travel time to work | 193rd | 375 |
Olathe's figures with every place in Kansas (CSV)
Every place in Kansas, sortable · Compare Olathe with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Olathe?
3 of the 57 figures for Olathe on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Olathe are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' public schools in Olathe.