PlainCities

Counties · Kansas

Counties of Kansas

Kansas has 105 counties. Johnson County is the largest with 636,906 residents in 2025. 21 of the 105 gained residents between 2020 and 2025 by the Census Bureau's estimates.

What counties are in Kansas?

Sorted by the 2025 population estimate; sort by any column.

Counties of Kansas: 2025 estimate, change since 2020, ACS 2020-2024 5-year estimates
Johnson County636,906+4.4%26154$109,208$391,200
Sedgwick County538,433+2.8%52135$69,365$203,300
Shawnee County178,607−0.2%1946$67,104$180,900
Wyandotte County170,597+0.8%464$63,631$172,300
Douglas County120,920+1.8%1327$69,746$309,400
Leavenworth County84,590+3.3%1819$89,218$282,900
Riley County72,598+0.9%2317$61,098$237,100
Butler County69,484+3.1%4419$81,610$217,600
Reno County61,539−0.6%4717$60,645$132,500
Saline County53,377−1.7%3013$65,422$179,600
Crawford County39,008+0.1%2712$52,844$132,600
Finney County37,505−2.5%1012$73,009$201,400
Geary County36,338−1.1%1211$59,317$172,700
Miami County36,240+6.0%218$89,000$287,700
Cowley County34,382−0.5%3711$57,878$120,900
Ford County33,993−0.9%219$70,781$151,100
Harvey County33,580−1.3%227$74,368$180,300
Lyon County32,266+0.3%2012$59,912$150,600
Montgomery County30,177−4.2%2312$55,697$101,700
McPherson County30,064−0.5%357$78,851$211,200
Ellis County29,075+0.5%108$63,084$216,300
Pottawatomie County27,186+7.2%355$92,325$245,900
Franklin County26,299+1.2%256$77,207$198,700
Barton County24,790−2.8%338$58,851$126,400
Sumner County22,312−0.3%446$63,951$135,100
Seward County21,073−4.1%55$63,827$136,500
Labette County19,685−2.5%228$56,325$94,600
Cherokee County19,105−1.3%266$57,668$100,100
Dickinson County18,637+1.2%366$68,417$146,800
Jefferson County18,296−0.4%224$81,278$216,900
Atchison County16,172−1.1%135$61,112$145,700
Osage County15,693−0.5%265$74,467$156,800
Neosho County15,637−1.7%215$56,618$111,300
Bourbon County14,319−0.3%195$59,238$113,800
Jackson County13,438+1.6%93$75,215$207,300
Allen County12,302−1.7%195$60,689$107,600
Marion County11,634−1.6%314$64,695$124,200
Nemaha County10,054−2.2%313$77,348$217,200
Linn County9,950+3.6%193$59,069$173,600
Marshall County9,852−1.8%374$68,419$127,700
Rice County9,266−1.6%293$63,925$104,600
Pratt County9,117−0.4%143$66,022$114,600
Brown County9,104−4.3%273$62,233$118,100
Cloud County8,833−2.2%264$58,770$100,000
Coffey County8,467+1.3%193$70,346$157,400
Wilson County8,299−3.8%194$60,677$93,500
Anderson County8,018+2.3%222$70,614$171,400
Clay County7,990−1.5%92$66,176$155,900
Thomas County7,725−2.5%202$71,325$172,700
Doniphan County7,594+1.2%183$74,028$135,200
Kingman County7,029−6.0%313$59,842$111,100
Grant County7,028−4.4%12$66,476$110,300
Wabaunsee County7,018+2.0%252$76,908$177,300
Russell County6,581−1.6%202$62,392$119,000
Ellsworth County6,257−1.9%242$65,560$114,900
Pawnee County5,991−4.1%252$63,517$93,000
Greenwood County5,826−2.9%243$60,042$88,700
Sherman County5,763−2.9%112$61,750$136,700
Ottawa County5,744+0.3%282$74,018$166,000
Gray County5,652+0.0%112$79,122$206,000
Mitchell County5,590−3.5%252$64,246$133,800
Washington County5,533−0.2%372$65,482$117,100
Harper County5,370−2.2%123$53,488$83,800
Morris County5,348−0.7%152$58,686$129,600
Norton County5,288−3.1%91$54,050$101,500
Stevens County4,984−5.0%22$64,178$129,300
Scott County4,815−6.6%41$68,839$160,000
Phillips County4,728−5.1%343$62,123$96,500
Rooks County4,646−5.4%192$62,500$89,000
Republic County4,640−0.9%293$56,833$75,600
Barber County4,083−3.6%242$61,926$97,000
Stafford County4,005−1.7%272$64,226$97,600
Kearny County3,888−2.5%91$89,135$200,900
Meade County3,852−5.1%92$71,852$148,900
Haskell County3,599−4.8%51$66,162$165,100
Smith County3,566−0.2%302$59,135$94,100
Chautauqua County3,321−1.8%101$56,438$65,500
Osborne County3,285−5.9%281$63,011$86,400
Woodson County3,118−0.0%102$50,326$81,200
Lincoln County2,861−2.7%131$57,500$96,900
Rush County2,845−3.7%201$59,970$83,600
Jewell County2,830−3.4%331$52,634$64,600
Trego County2,740−2.5%101$81,528$120,900
Decatur County2,716−1.8%301$53,870$89,500
Logan County2,661−3.6%151$75,662$117,900
Edwards County2,640−9.2%142$52,692$70,900
Gove County2,631−3.3%151$66,029$118,400
Ness County2,617−2.4%151$68,616$89,700
Cheyenne County2,604−0.4%91$55,429$125,900
Chase County2,572−0.2%141$56,484$109,700
Hamilton County2,500−0.8%51$70,250$115,800
Morton County2,470−8.4%41$66,447$96,100
Elk County2,458−1.0%151$64,609$68,500
Kiowa County2,432−1.3%31$75,539$155,300
Rawlins County2,431−5.1%141$67,742$103,800
Sheridan County2,427−0.7%41$73,750$167,200
Graham County2,371−1.8%171$50,650$89,900
Wichita County2,031−5.7%21$79,063$99,300
Stanton County1,986−4.6%31$71,700$67,800
Clark County1,900−4.5%61$63,043$87,600
Comanche County1,673−0.8%71$54,545$69,600
Hodgeman County1,619−6.1%111$59,955$101,600
Lane County1,508−4.1%71$54,526$127,100
Wallace County1,441−4.7%71$63,207$105,000
Greeley County1,182−7.9%31$80,565$115,200

Source: PEP Vintage 2025 (CO-EST2025); American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · Census population estimates

How these figures are made: methodology and release checks · reading a margin of error · every state · corrections