The following information was provided by the United States Census Bureau.

This data includes the 2010 census with some data comparisons to the 2000 census.



2010 Percent of
Total Population

2000 Percent of
Total Population
White 83.1% 88.6%
Black or African American 5.3% 3.7%
American Indian & Alaska Native 0.4% 0.4%
Asian 4.1% 2.7%
Native Hawaiian & Other Pacific Islander 0.1% 0.0%
Some Other Race 4.1% 2.6%
Two or More Races 3.0% 1.8%
Hispanic or Latina (of any race) 10.2%  5.4%
Source: 2000 & 2010 Census    


Diversity in Olathe

Olathe became more diverse over the past decade with non-white residents increasing from 11.4% to 16.9% of the total population.  The black or African American population increased from 2.7% to 5.3% of the total population between 2000 and 2010.  Olathe’s Asian population increased from 2.7% to 4.1% of the total population.

Hispanic and Latino Population

Between 2000 and 2010, the number Hispanics or Latinos of any race in Olathe increased more than 150% from 5,060 to 12,794, and increased as a percentage of the total population from 5.4 to 10.2%.

Overall Population Growth

  • Olathe's population increased from 92,962 in 2000 to 125,872 in 2010, for an increase of 32,910 or 35.4%.  This makes Olathe the fastest growing city in Kansas since 2000 in absolute numbers. 

  • Among the top ten largest cities in the Kansas City area, the City of Olathe had the largest growth both in terms of total population added, and in percentage growth. 
  • With a population of 125,872 in 2010, Olathe ranks as the fourth largest city in the region behind Kansas City, MO (459,787), Overland Park, KS (173,372), and Kansas City, KS (145,786).

  • Olathe ranks as the fifth largest city in Kansas, behind Wichita (382,368), Overland Park (173,372), Kansas City, KS (145,786), and Topeka (127,473).

  • Johnson County added 93,093 residents between 2000 and 2010, which is more people than the next four largest growth counties in the Kansas City region combined (Clay, Jackson, Cass, and Platte).  By percentage, Johnson County grew by 20.6%, which is just slightly less than the highest percentage growth counties in the region (Cass County at 21.6% and Platte County at 21.1%).

See the City of Olathe Planning Division's latest Demographics and Development Brochure and Quarterly Report: Demographics & Development and Year in Review.