Population of Counties in Indiana (2018)

Name 2018 Population Growth Since 2010
Marion County950,0825.04%
Lake County485,640-2.06%
Allen County372,8774.77%
Hamilton County323,74717.10%
St. Joseph County270,4341.37%
Elkhart County205,0323.84%
Tippecanoe County190,58710.14%
Vanderburgh County181,6160.99%
Porter County168,4042.35%
Hendricks County163,68512.20%
Johnson County153,8979.72%
Monroe County146,9866.12%
Madison County129,498-1.61%
Clark County116,9735.79%
Delaware County115,184-2.09%
LaPorte County110,029-1.28%
Vigo County107,516-0.33%
Howard County82,363-0.47%
Bartholomew County82,0406.81%
Kosciusko County79,2062.42%
Floyd County77,0713.16%
Hancock County74,9856.77%
Morgan County69,7130.82%
Grant County66,491-4.89%
Wayne County66,185-3.93%
Boone County65,87515.75%
Warrick County62,5304.51%
Dearborn County49,741-0.70%
Henry County48,476-2.13%
Noble County47,452-0.00%
Marshall County46,498-1.06%
Lawrence County45,666-0.95%
Shelby County44,3950.16%
Jackson County43,8843.05%
DeKalb County42,8361.27%
Dubois County42,5581.56%
Harrison County39,8981.45%
LaGrange County39,3035.77%
Montgomery County38,5251.12%
Cass County37,994-2.52%
Putnam County37,702-0.55%
Knox County37,508-2.30%
Huntington County36,337-2.10%
Miami County35,845-2.63%
Adams County35,4913.02%
Steuben County34,4840.99%
Whitley County33,7561.20%
Gibson County33,5760.10%
Jasper County33,447-0.14%
Daviess County33,1134.40%
Clinton County32,317-2.73%
Greene County32,177-3.07%
Jefferson County32,089-0.97%
Wabash County31,443-4.27%
Ripley County28,442-1.28%
Wells County27,9841.10%
Washington County27,827-1.67%
Jennings County27,626-3.00%
Decatur County26,7373.68%
Clay County26,198-2.44%
Posey County25,595-1.03%
Randolph County24,922-4.77%
White County24,182-2.03%
Scott County23,870-1.21%
Fayette County23,209-4.60%
Starke County22,893-1.94%
Franklin County22,619-1.90%
Jay County20,945-1.10%
Owen County20,839-3.41%
Sullivan County20,746-3.01%
Spencer County20,394-2.48%
Fulton County20,059-3.61%
Carroll County20,039-0.78%
Orange County19,426-1.93%
Perry County19,081-1.69%
Parke County16,886-2.29%
Rush County16,645-4.25%
Fountain County16,505-4.47%
Vermillion County15,505-3.79%
Tipton County15,128-4.70%
Brown County15,035-1.12%
Newton County14,130-0.77%
Pulaski County12,534-5.96%
Pike County12,365-3.27%
Blackford County11,976-6.23%
Switzerland County10,6960.00%
Crawford County10,566-1.34%
Martin County10,215-1.37%
Benton County8,613-2.82%
Warren County8,201-3.72%
Union County7,200-4.47%
Ohio County5,828-4.38%