Kansas County Area & Size Rankings

Understanding Kansas’s county areas

The land-area range runs from Wyandotte County at 151.6 mi² to Butler County at 1,429.7 mi². The largest has 9.4 times the land area of the smallest and accounts for 1.7% of the combined county land in Kansas. Compare with every state’s largest county.

The median county-equivalent land area is 729.7 mi², above the national median of 604.5 mi². The median describes the middle of the county size distribution; it does not describe how people or development are distributed. A state with a few very large counties can have a much smaller median than its largest entry suggests.

Where water changes the picture

Coffey County has the most assigned water area, at 27.2 mi². Geary County has the highest water share, with water making up 4.9% of its total area. Water area and water percentage answer different questions: the first measures an amount, while the second measures the mix of land and water.

Across all 105 entries, water accounts for 0.6% of the combined total area. This is calculated from the summed land and water measurements, rather than averaging county percentages, which would give each small and large county equal weight.

Where people live

An estimated 2,977,220 people lived in Kansas on July 1, 2025 (+1.3% since 2020), or 0.9% of the national total in this dataset. Johnson County is the most populous county equivalent, with 636,906 residents — 21.4% of the state. The largest by land, Butler County, has 69,484.

Across the state there are 36 people per square mile of land. County densities range from 1,345 in Johnson County to 1.5 in Greeley County; the median county equivalent has 8.1. Switch the map above to density to see where the state’s population concentrates.

Compare the largest and smallest county equivalents in Kansas to see land, water, and total area on the same scale.

These calculations use the 2026 Census county records listed below. County-equivalent boundaries vary between states; area alone does not measure population, density, or usable land. See coverage and calculation rules.

#	County / equivalent	Land	Water	Water share	Population	Per mi²
1	Butler CountyGEOID 20015	1,429.7 mi²	16.8 mi²	1.2%	69,484	49
2	Finney CountyGEOID 20055	1,302 mi²	0.7 mi²	0.1%	37,505	29
3	Reno CountyGEOID 20155	1,255.3 mi²	16.8 mi²	1.3%	61,539	49
4	Sumner CountyGEOID 20191	1,181.7 mi²	3.3 mi²	0.3%	22,312	19
5	Greenwood CountyGEOID 20073	1,143.3 mi²	9.3 mi²	0.8%	5,826	5.1
6	Barber CountyGEOID 20007	1,134.1 mi²	2.1 mi²	0.2%	4,083	3.6
7	Cowley CountyGEOID 20035	1,125.7 mi²	6.7 mi²	0.6%	34,382	31
8	Ford CountyGEOID 20057	1,098.3 mi²	0.8 mi²	0.1%	33,993	31
9	Ness CountyGEOID 20135	1,074.7 mi²	0.3 mi²	0%	2,617	2.4
10	Thomas CountyGEOID 20193	1,074.7 mi²	0.1 mi²	0%	7,725	7.2
11	Logan CountyGEOID 20109	1,073 mi²	0.1 mi²	0%	2,661	2.5
12	Gove CountyGEOID 20063	1,071.7 mi²	0.1 mi²	0%	2,631	2.5
13	Rawlins CountyGEOID 20153	1,069.4 mi²	0.2 mi²	0%	2,431	2.3
14	Sherman CountyGEOID 20181	1,056.1 mi²	0.2 mi²	0%	5,763	5.5
15	Cheyenne CountyGEOID 20023	1,019.9 mi²	1.1 mi²	0.1%	2,604	2.6
16	Sedgwick CountyGEOID 20173	997 mi²	12.1 mi²	1.2%	538,433	540
17	Hamilton CountyGEOID 20075	996.5 mi²	1.1 mi²	0.1%	2,500	2.5
18	Meade CountyGEOID 20119	978.1 mi²	1.3 mi²	0.1%	3,852	3.9
19	Clark CountyGEOID 20025	974.6 mi²	2.6 mi²	0.3%	1,900	1.9
20	Marion CountyGEOID 20115	944.3 mi²	9.4 mi²	1%	11,634	12
21	Wallace CountyGEOID 20199	913.7 mi²	0.1 mi²	0%	1,441	1.6
22	Jewell CountyGEOID 20089	910 mi²	4.4 mi²	0.5%	2,830	3.1
23	Marshall CountyGEOID 20117	900.2 mi²	4.9 mi²	0.5%	9,852	11
24	Ellis CountyGEOID 20051	899.9 mi²	0.4 mi²	0%	29,075	32
25	Graham CountyGEOID 20065	898.5 mi²	0.2 mi²	0%	2,371	2.6
26	McPherson CountyGEOID 20113	898.3 mi²	2.3 mi²	0.3%	30,064	33
27	Sheridan CountyGEOID 20179	896 mi²	0.3 mi²	0%	2,427	2.7
28	Smith CountyGEOID 20183	895.5 mi²	1.5 mi²	0.2%	3,566	4
29	Barton CountyGEOID 20009	895.3 mi²	5.4 mi²	0.6%	24,790	28
30	Washington CountyGEOID 20201	894.8 mi²	3.9 mi²	0.4%	5,533	6.2
31	Decatur CountyGEOID 20039	893.5 mi²	0.6 mi²	0.1%	2,716	3
32	Osborne CountyGEOID 20141	892.5 mi²	1.9 mi²	0.2%	3,285	3.7
33	Rooks CountyGEOID 20163	890.5 mi²	4.6 mi²	0.5%	4,646	5.2
34	Trego CountyGEOID 20195	889.5 mi²	10.1 mi²	1.1%	2,740	3.1
35	Russell CountyGEOID 20167	886.3 mi²	13.2 mi²	1.5%	6,581	7.4
36	Phillips CountyGEOID 20147	885.9 mi²	8.7 mi²	1%	4,728	5.3
37	Norton CountyGEOID 20137	878 mi²	3.3 mi²	0.4%	5,288	6
38	Kearny CountyGEOID 20093	870.5 mi²	0.4 mi²	0.1%	3,888	4.5
39	Gray CountyGEOID 20069	868.9 mi²	0.4 mi²	0%	5,652	6.5
40	Kingman CountyGEOID 20095	863.4 mi²	3.2 mi²	0.4%	7,029	8.1
41	Hodgeman CountyGEOID 20083	860 mi²	0.3 mi²	0%	1,619	1.9
42	Lyon CountyGEOID 20111	847.5 mi²	7.9 mi²	0.9%	32,266	38
43	Dickinson CountyGEOID 20041	847.1 mi²	4.9 mi²	0.6%	18,637	22
44	Pottawatomie CountyGEOID 20149	840.7 mi²	20.9 mi²	2.4%	27,186	32
45	Harper CountyGEOID 20077	801.3 mi²	1.5 mi²	0.2%	5,370	6.7
46	Wabaunsee CountyGEOID 20197	794.3 mi²	5.3 mi²	0.7%	7,018	8.8
47	Stafford CountyGEOID 20185	792 mi²	2.9 mi²	0.4%	4,005	5.1
48	Comanche CountyGEOID 20033	788.3 mi²	1.4 mi²	0.2%	1,673	2.1
49	Greeley CountyGEOID 20071	778.4 mi²	0 mi²	0%	1,182	1.5
50	Chase CountyGEOID 20017	773.1 mi²	4.7 mi²	0.6%	2,572	3.3
51	Pawnee CountyGEOID 20145	754.3 mi²	0.4 mi²	0.1%	5,991	7.9
52	Pratt CountyGEOID 20151	735 mi²	0.7 mi²	0.1%	9,117	12
53	Morton CountyGEOID 20129	729.7 mi²	0.2 mi²	0%	2,470	3.4
54	Stevens CountyGEOID 20189	727.4 mi²	0 mi²	0%	4,984	6.9
55	Rice CountyGEOID 20159	726.2 mi²	1.7 mi²	0.2%	9,266	13
56	Kiowa CountyGEOID 20097	722.6 mi²	0.2 mi²	0%	2,432	3.4
57	Ottawa CountyGEOID 20143	720.7 mi²	0.6 mi²	0.1%	5,744	8
58	Saline CountyGEOID 20169	720.2 mi²	1.1 mi²	0.1%	53,377	74
59	Lincoln CountyGEOID 20105	719.4 mi²	1.1 mi²	0.1%	2,861	4
60	Wichita CountyGEOID 20203	718.6 mi²	0 mi²	0%	2,031	2.8
61	Rush CountyGEOID 20165	717.8 mi²	0.2 mi²	0%	2,845	4
62	Scott CountyGEOID 20171	717.6 mi²	0.1 mi²	0%	4,815	6.7
63	Nemaha CountyGEOID 20131	717.4 mi²	2 mi²	0.3%	10,054	14
64	Lane CountyGEOID 20101	717.4 mi²	0.2 mi²	0%	1,508	2.1
65	Republic CountyGEOID 20157	717.4 mi²	3.1 mi²	0.4%	4,640	6.5
66	Ellsworth CountyGEOID 20053	715.6 mi²	7.7 mi²	1.1%	6,257	8.7
67	Cloud CountyGEOID 20029	715.3 mi²	2.6 mi²	0.4%	8,833	12
68	Osage CountyGEOID 20139	705.5 mi²	14.3 mi²	2%	15,693	22
69	Mitchell CountyGEOID 20123	701.8 mi²	17.4 mi²	2.4%	5,590	8
70	Morris CountyGEOID 20127	695.3 mi²	7.5 mi²	1.1%	5,348	7.7
71	Stanton CountyGEOID 20187	680.4 mi²	0.1 mi²	0%	1,986	2.9
72	Jackson CountyGEOID 20085	656.2 mi²	1.8 mi²	0.3%	13,438	20
73	Labette CountyGEOID 20099	645.4 mi²	7.7 mi²	1.2%	19,685	31
74	Clay CountyGEOID 20027	645.3 mi²	10.3 mi²	1.6%	7,990	12
75	Elk CountyGEOID 20049	644.3 mi²	6.2 mi²	1%	2,458	3.8
76	Montgomery CountyGEOID 20125	643.6 mi²	7.9 mi²	1.2%	30,177	47
77	Seward CountyGEOID 20175	639.7 mi²	0.8 mi²	0.1%	21,073	33
78	Chautauqua CountyGEOID 20019	638.9 mi²	5.9 mi²	0.9%	3,321	5.2
79	Bourbon CountyGEOID 20011	635.5 mi²	3.6 mi²	0.6%	14,319	23
80	Coffey CountyGEOID 20031	626.9 mi²	27.2 mi²	4.2%	8,467	14
81	Edwards CountyGEOID 20047	621.9 mi²	0.1 mi²	0%	2,640	4.2
82	Riley CountyGEOID 20161	609.7 mi²	12.4 mi²	2%	72,598	119
83	Linn CountyGEOID 20107	594.1 mi²	12.3 mi²	2%	9,950	17
84	Crawford CountyGEOID 20037	589.8 mi²	5.2 mi²	0.9%	39,008	66
85	Cherokee CountyGEOID 20021	587.6 mi²	3.5 mi²	0.6%	19,105	33
86	Anderson CountyGEOID 20003	579.6 mi²	4.1 mi²	0.7%	8,018	14
87	Haskell CountyGEOID 20081	577.5 mi²	0.4 mi²	0.1%	3,599	6.2
88	Miami CountyGEOID 20121	575.9 mi²	14.4 mi²	2.4%	36,240	63
89	Grant CountyGEOID 20067	574.8 mi²	0.3 mi²	0.1%	7,028	12
90	Franklin CountyGEOID 20059	571.8 mi²	5.4 mi²	0.9%	26,299	46
91	Neosho CountyGEOID 20133	571.5 mi²	6.3 mi²	1.1%	15,637	27
92	Brown CountyGEOID 20013	570.9 mi²	1.2 mi²	0.2%	9,104	16
93	Wilson CountyGEOID 20205	570.4 mi²	4.7 mi²	0.8%	8,299	15
94	Shawnee CountyGEOID 20177	544 mi²	11.7 mi²	2.1%	178,607	328
95	Harvey CountyGEOID 20079	539.8 mi²	1 mi²	0.2%	33,580	62
96	Jefferson CountyGEOID 20087	532.6 mi²	24.1 mi²	4.3%	18,296	34
97	Allen CountyGEOID 20001	500.3 mi²	5 mi²	1%	12,302	25
98	Woodson CountyGEOID 20207	497.8 mi²	7.4 mi²	1.5%	3,118	6.3
99	Johnson CountyGEOID 20091	473.6 mi²	6.3 mi²	1.3%	636,906	1,345
100	Leavenworth CountyGEOID 20103	463.4 mi²	5.5 mi²	1.2%	84,590	183
101	Douglas CountyGEOID 20045	455.8 mi²	18.9 mi²	4%	120,920	265
102	Atchison CountyGEOID 20005	431.2 mi²	2.6 mi²	0.6%	16,172	38
103	Doniphan CountyGEOID 20043	393.5 mi²	4.8 mi²	1.2%	7,594	19
104	Geary CountyGEOID 20061	384.7 mi²	19.9 mi²	4.9%	36,338	94
105	Wyandotte CountyGEOID 20209	151.6 mi²	4.6 mi²	2.9%	170,597	1,125

County / equivalent

Land

Water

Water share

Population

Per mi²

Butler CountyGEOID 20015

1,429.7 mi²

16.8 mi²

1.2%

69,484

Finney CountyGEOID 20055

1,302 mi²

0.7 mi²

0.1%

37,505

Reno CountyGEOID 20155

1,255.3 mi²

16.8 mi²

1.3%

61,539

Sumner CountyGEOID 20191

1,181.7 mi²

3.3 mi²

0.3%

22,312

Greenwood CountyGEOID 20073

1,143.3 mi²

9.3 mi²

0.8%

5,826

5.1

Barber CountyGEOID 20007

1,134.1 mi²

2.1 mi²

0.2%

4,083

3.6

Cowley CountyGEOID 20035

1,125.7 mi²

6.7 mi²

0.6%

34,382

Ford CountyGEOID 20057

1,098.3 mi²

0.8 mi²

0.1%

33,993

Ness CountyGEOID 20135

1,074.7 mi²

0.3 mi²

2,617

2.4

Thomas CountyGEOID 20193

1,074.7 mi²

0.1 mi²

7,725

7.2

Logan CountyGEOID 20109

1,073 mi²

0.1 mi²

2,661

2.5

Gove CountyGEOID 20063

1,071.7 mi²

0.1 mi²

2,631

2.5

Rawlins CountyGEOID 20153

1,069.4 mi²

0.2 mi²

2,431

2.3

Sherman CountyGEOID 20181

1,056.1 mi²

0.2 mi²

5,763

5.5

Cheyenne CountyGEOID 20023

1,019.9 mi²

1.1 mi²

0.1%

2,604

2.6

Sedgwick CountyGEOID 20173

997 mi²

12.1 mi²

1.2%

538,433

540

Hamilton CountyGEOID 20075

996.5 mi²

1.1 mi²

0.1%

2,500

2.5

Meade CountyGEOID 20119

978.1 mi²

1.3 mi²

0.1%

3,852

3.9

Clark CountyGEOID 20025

974.6 mi²

2.6 mi²

0.3%

1,900

1.9

Marion CountyGEOID 20115

944.3 mi²

9.4 mi²

11,634

Wallace CountyGEOID 20199

913.7 mi²

0.1 mi²

1,441

1.6

Jewell CountyGEOID 20089

910 mi²

4.4 mi²

0.5%

2,830

3.1

Marshall CountyGEOID 20117

900.2 mi²

4.9 mi²

0.5%

9,852

Ellis CountyGEOID 20051

899.9 mi²

0.4 mi²

29,075

Graham CountyGEOID 20065

898.5 mi²

0.2 mi²

2,371

2.6

McPherson CountyGEOID 20113

898.3 mi²

2.3 mi²

0.3%

30,064

Sheridan CountyGEOID 20179

896 mi²

0.3 mi²

2,427

2.7

Smith CountyGEOID 20183

895.5 mi²

1.5 mi²

0.2%

3,566

Barton CountyGEOID 20009

895.3 mi²

5.4 mi²

0.6%

24,790

Washington CountyGEOID 20201

894.8 mi²

3.9 mi²

0.4%

5,533

6.2

Decatur CountyGEOID 20039

893.5 mi²

0.6 mi²

0.1%

2,716

Osborne CountyGEOID 20141

892.5 mi²

1.9 mi²

0.2%

3,285

3.7

Rooks CountyGEOID 20163

890.5 mi²

4.6 mi²

0.5%

4,646

5.2

Trego CountyGEOID 20195

889.5 mi²

10.1 mi²

1.1%

2,740

3.1

Russell CountyGEOID 20167

886.3 mi²

13.2 mi²

1.5%

6,581

7.4

Phillips CountyGEOID 20147

885.9 mi²

8.7 mi²

4,728

5.3

Norton CountyGEOID 20137

878 mi²

3.3 mi²

0.4%

5,288

Kearny CountyGEOID 20093

870.5 mi²

0.4 mi²

0.1%

3,888

4.5

Gray CountyGEOID 20069

868.9 mi²

0.4 mi²

5,652

6.5

Kingman CountyGEOID 20095

863.4 mi²

3.2 mi²

0.4%

7,029

8.1

Hodgeman CountyGEOID 20083

860 mi²

0.3 mi²

1,619

1.9

Lyon CountyGEOID 20111

847.5 mi²

7.9 mi²

0.9%

32,266

Dickinson CountyGEOID 20041

847.1 mi²

4.9 mi²

0.6%

18,637

Pottawatomie CountyGEOID 20149

840.7 mi²

20.9 mi²

2.4%

27,186

Harper CountyGEOID 20077

801.3 mi²

1.5 mi²

0.2%

5,370

6.7

Wabaunsee CountyGEOID 20197

794.3 mi²

5.3 mi²

0.7%

7,018

8.8

Stafford CountyGEOID 20185

792 mi²

2.9 mi²

0.4%

4,005

5.1

Comanche CountyGEOID 20033

788.3 mi²

1.4 mi²

0.2%

1,673

2.1

Greeley CountyGEOID 20071

778.4 mi²

0 mi²

1,182

1.5

Chase CountyGEOID 20017

773.1 mi²

4.7 mi²

0.6%

2,572

3.3

Pawnee CountyGEOID 20145

754.3 mi²

0.4 mi²

0.1%

5,991

7.9

Pratt CountyGEOID 20151

735 mi²

0.7 mi²

0.1%

9,117

Morton CountyGEOID 20129

729.7 mi²

0.2 mi²

2,470

3.4

Stevens CountyGEOID 20189

727.4 mi²

0 mi²

4,984

6.9

Rice CountyGEOID 20159

726.2 mi²

1.7 mi²

0.2%

9,266

Kiowa CountyGEOID 20097

722.6 mi²

0.2 mi²

2,432

3.4

Ottawa CountyGEOID 20143

720.7 mi²

0.6 mi²

0.1%

5,744

Saline CountyGEOID 20169

720.2 mi²

1.1 mi²

0.1%

53,377

Lincoln CountyGEOID 20105

719.4 mi²

1.1 mi²

0.1%

2,861

Wichita CountyGEOID 20203

718.6 mi²

0 mi²

2,031

2.8

Rush CountyGEOID 20165

717.8 mi²

0.2 mi²

2,845

Scott CountyGEOID 20171

717.6 mi²

0.1 mi²

4,815

6.7

Nemaha CountyGEOID 20131

717.4 mi²

2 mi²

0.3%

10,054

Lane CountyGEOID 20101

717.4 mi²

0.2 mi²

1,508

2.1

Republic CountyGEOID 20157

717.4 mi²

3.1 mi²

0.4%

4,640

6.5

Ellsworth CountyGEOID 20053

715.6 mi²

7.7 mi²

1.1%

6,257

8.7

Cloud CountyGEOID 20029

715.3 mi²

2.6 mi²

0.4%

8,833

Osage CountyGEOID 20139

705.5 mi²

14.3 mi²

15,693

Mitchell CountyGEOID 20123

701.8 mi²

17.4 mi²

2.4%

5,590

Morris CountyGEOID 20127

695.3 mi²

7.5 mi²

1.1%

5,348

7.7

Stanton CountyGEOID 20187

680.4 mi²

0.1 mi²

1,986

2.9

Jackson CountyGEOID 20085

656.2 mi²

1.8 mi²

0.3%

13,438

Labette CountyGEOID 20099

645.4 mi²

7.7 mi²

1.2%

19,685

Clay CountyGEOID 20027

645.3 mi²

10.3 mi²

1.6%

7,990

Elk CountyGEOID 20049

644.3 mi²

6.2 mi²

2,458

3.8

Montgomery CountyGEOID 20125

643.6 mi²

7.9 mi²

1.2%

30,177

Seward CountyGEOID 20175

639.7 mi²

0.8 mi²

0.1%

21,073

Chautauqua CountyGEOID 20019

638.9 mi²

5.9 mi²

0.9%

3,321

5.2

Bourbon CountyGEOID 20011

635.5 mi²

3.6 mi²

0.6%

14,319

Coffey CountyGEOID 20031

626.9 mi²

27.2 mi²

4.2%

8,467

Edwards CountyGEOID 20047

621.9 mi²

0.1 mi²

2,640

4.2

Riley CountyGEOID 20161

609.7 mi²

12.4 mi²

72,598

119

Linn CountyGEOID 20107

594.1 mi²

12.3 mi²

9,950

Crawford CountyGEOID 20037

589.8 mi²

5.2 mi²

0.9%

39,008

Cherokee CountyGEOID 20021

587.6 mi²

3.5 mi²

0.6%

19,105

Anderson CountyGEOID 20003

579.6 mi²

4.1 mi²

0.7%

8,018

Haskell CountyGEOID 20081

577.5 mi²

0.4 mi²

0.1%

3,599

6.2

Miami CountyGEOID 20121

575.9 mi²

14.4 mi²

2.4%

36,240

Grant CountyGEOID 20067

574.8 mi²

0.3 mi²

0.1%

7,028

Franklin CountyGEOID 20059

571.8 mi²

5.4 mi²

0.9%

26,299

Neosho CountyGEOID 20133

571.5 mi²

6.3 mi²

1.1%

15,637

Brown CountyGEOID 20013

570.9 mi²

1.2 mi²

0.2%

9,104

Wilson CountyGEOID 20205

570.4 mi²

4.7 mi²

0.8%

8,299

Shawnee CountyGEOID 20177

544 mi²

11.7 mi²

2.1%

178,607

328

Harvey CountyGEOID 20079

539.8 mi²

1 mi²

0.2%

33,580

Jefferson CountyGEOID 20087

532.6 mi²

24.1 mi²

4.3%

18,296

Allen CountyGEOID 20001

500.3 mi²

5 mi²

12,302

Woodson CountyGEOID 20207

497.8 mi²

7.4 mi²

1.5%

3,118

6.3

Johnson CountyGEOID 20091

473.6 mi²

6.3 mi²

1.3%

636,906

1,345

100

Leavenworth CountyGEOID 20103

463.4 mi²

5.5 mi²

1.2%

84,590

183

101

Douglas CountyGEOID 20045

455.8 mi²

18.9 mi²

120,920

265

102

Atchison CountyGEOID 20005

431.2 mi²

2.6 mi²

0.6%

16,172

103

Doniphan CountyGEOID 20043

393.5 mi²

4.8 mi²

1.2%

7,594

104

Geary CountyGEOID 20061

384.7 mi²

19.9 mi²

4.9%

36,338

105

Wyandotte CountyGEOID 20209

151.6 mi²

4.6 mi²

2.9%

170,597

1,125

Kansas counties by area

Understanding Kansas’s county areas

Where water changes the picture

Where people live

Complete area table