Ranking of Kansas Counties By Population in 2018

Updated on January 28, 2024.

Based on the US Census Vintage data estimates, in 2018, the Population for Kansas was 2.91M. Among all Kansas counties, Johnson County had the highest population (599.04K), followed by Sedgwick County (513.88K), and Shawnee County (177.22K).

The chart below shows the top 10 counties, and the table below shows the ranking of all Kansas counties.

You can see similar ranking information for related topics, and for other states. You can also see the ranking of all counties in the United States.

See this for other years:
Ranking of Kansas Counties By Population in 2018
Johnson
599.04K
Sedgwick
513.88K
Shawnee
177.22K
Wyandotte
165.78K
Douglas
121.33K
Leavenworth
81.66K
Riley
74.83K
Butler
66.89K
Reno
62.36K
Saline
54.35K
Ranking of Kansas Counties By Population in 2018
Rank
County
Population
1 Johnson County 599,045
2 Sedgwick County 513,877
3 Shawnee County 177,224
4 Wyandotte County 165,781
5 Douglas County 121,327
6 Leavenworth County 81,659
7 Riley County 74,826
8 Butler County 66,887
9 Reno County 62,363
10 Saline County 54,351
11 Crawford County 38,884
12 Finney County 36,473
13 Cowley County 35,067
14 Harvey County 34,225
15 Miami County 33,714
16 Ford County 33,623
17 Lyon County 33,302
18 Geary County 32,998
19 Montgomery County 32,040
20 Ellis County 28,709
21 McPherson County 28,565
22 Barton County 26,120
23 Franklin County 25,681
24 Pottawatomie County 24,243
25 Sumner County 22,982
Items per page:
1 – 25 of 105