Kansas Population By County in 2015

Updated on June 16, 2025.

Based on the US Census Vintage data estimates, in 2015, the population of Kansas was 2,910,717. Among all Kansas counties, Johnson had the highest population (580,158), followed by Sedgwick (511,230), and Shawnee (178,789).

Hover over or click on the counties in the map below to see the populations. The data can also be found in a table below. You can use the table to sort, filter, and explore the data further.

You can see similar information for other states and by state for the United States.

Related Topics: Kansas Census Vintage Data Topic List.

Data Source: US Census Bureau (Vintage).

See this for other years:

Kansas Population By County in 2015

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County	Population	% of State Population
Allen	12680	0.44
Anderson	7826	0.27
Atchison	16429	0.56
Barber	4824	0.17
Barton	27164	0.93
Bourbon	14734	0.51
Brown	9710	0.33
Butler	66293	2.28
Chase	2654	0.09
Chautauqua	3389	0.12
Cherokee	20552	0.71
Cheyenne	2676	0.09
Clark	2082	0.07
Clay	8291	0.28
Cloud	9192	0.32
Coffey	8294	0.28
Comanche	1828	0.06
Cowley	35774	1.23
Crawford	39166	1.35
Decatur	2927	0.10
Dickinson	19214	0.66
Doniphan	7789	0.27
Douglas	118265	4.06
Edwards	2955	0.10
Elk	2572	0.09
Ellis	29030	1.00
Ellsworth	6311	0.22
Finney	37127	1.28
Ford	34617	1.19
Franklin	25495	0.88
Geary	36783	1.26
Gove	2700	0.09
Graham	2591	0.09
Grant	7719	0.27
Gray	6083	0.21
Greeley	1302	0.05
Greenwood	6235	0.21
Hamilton	2563	0.09
Harper	5785	0.20
Harvey	34832	1.20
Haskell	4087	0.14
Hodgeman	1868	0.06
Jackson	13286	0.46
Jefferson	18789	0.65
Jewell	2964	0.10
Johnson	580158	19.93
Kearny	3936	0.14
Kingman	7639	0.26
Kiowa	2568	0.09
Labette	20640	0.71
Lane	1630	0.06
Leavenworth	79269	2.72
Lincoln	3141	0.11
Linn	9574	0.33
Logan	2785	0.10
Lyon	33142	1.14
McPherson	28667	0.99
Marion	12054	0.41
Marshall	9848	0.34
Meade	4298	0.15
Miami	32782	1.13
Mitchell	6295	0.22
Montgomery	33458	1.15
Morris	5630	0.19
Morton	2950	0.10
Nemaha	10099	0.35
Neosho	16291	0.56
Ness	3022	0.10
Norton	5538	0.19
Osage	15867	0.55
Osborne	3641	0.13
Ottawa	5932	0.20
Pawnee	6772	0.23
Phillips	5419	0.19
Pottawatomie	23145	0.80
Pratt	9695	0.33
Rawlins	2504	0.09
Reno	63612	2.19
Republic	4688	0.16
Rice	9926	0.34
Riley	77293	2.66
Rooks	5179	0.18
Rush	3097	0.11
Russell	7045	0.24
Saline	55463	1.91
Scott	4950	0.17
Sedgwick	511230	17.56
Seward	23283	0.80
Shawnee	178789	6.14
Sheridan	2474	0.09
Sherman	5965	0.21
Smith	3691	0.13
Stafford	4217	0.14
Stanton	2072	0.07
Stevens	5791	0.20
Sumner	23414	0.80
Thomas	7908	0.27
Trego	2904	0.10
Wabaunsee	6886	0.24
Wallace	1505	0.05
Washington	5568	0.19
Wichita	2166	0.07
Wilson	8847	0.30
Woodson	3142	0.11
Wyandotte	163776	5.63