Data / Rankings / Population density / Counties in Indiana

Counties in Indiana by population density

Marion County had the highest population density of 92 counties in 2021, at 947.1 inhabitants per km². Benton County had the lowest, at 8.3 inhabitants per km². The median was 33.4 inhabitants per km² and the figure for Indiana was 73.4 inhabitants per km². Source: the U.S. Census Bureau.

Highest947.1Marion County
Lowest8.3Benton County
Median33.492 counties
Indiana73.4History

Top 40 counties, 2021

CSVChart (SVG)

Marion CountyMarion County: 947.1 inhabitants per km²947.1Lake CountyLake County: 386.2 inhabitants per km²386.2Hamilton CountyHamilton County: 350 inhabitants per km²350Vanderburgh CountyVanderburgh County: 297.9 inhabitants per km²297.9St. Joseph CountySt. Joseph County: 229.6 inhabitants per km²229.6Allen CountyAllen County: 228.6 inhabitants per km²228.6Floyd CountyFloyd County: 209.3 inhabitants per km²209.3Johnson CountyJohnson County: 198 inhabitants per km²198Elkhart CountyElkhart County: 172.5 inhabitants per km²172.5Hendricks CountyHendricks County: 170.6 inhabitants per km²170.6Porter CountyPorter County: 161.1 inhabitants per km²161.1Tippecanoe CountyTippecanoe County: 145 inhabitants per km²145Monroe CountyMonroe County: 141.6 inhabitants per km²141.6Clark CountyClark County: 127.4 inhabitants per km²127.4Madison CountyMadison County: 111.5 inhabitants per km²111.5Delaware CountyDelaware County: 110.3 inhabitants per km²110.3Howard CountyHoward County: 110.1 inhabitants per km²110.1Hancock CountyHancock County: 103.3 inhabitants per km²103.3Vigo CountyVigo County: 101.5 inhabitants per km²101.5Bartholomew CountyBartholomew County: 78.5 inhabitants per km²78.5LaPorte CountyLaPorte County: 72.5 inhabitants per km²72.5Morgan CountyMorgan County: 69.1 inhabitants per km²69.1Boone CountyBoone County: 66.6 inhabitants per km²66.6Warrick CountyWarrick County: 64.9 inhabitants per km²64.9Dearborn CountyDearborn County: 64.4 inhabitants per km²64.4Wayne CountyWayne County: 63.8 inhabitants per km²63.8Grant CountyGrant County: 61.7 inhabitants per km²61.7Kosciusko CountyKosciusko County: 58.3 inhabitants per km²58.3Scott CountyScott County: 49.5 inhabitants per km²49.5Henry CountyHenry County: 48.2 inhabitants per km²48.2DeKalb CountyDeKalb County: 46.2 inhabitants per km²46.2Noble CountyNoble County: 44.5 inhabitants per km²44.5Steuben CountySteuben County: 43.4 inhabitants per km²43.4Shelby CountyShelby County: 42.3 inhabitants per km²42.3Fayette CountyFayette County: 42 inhabitants per km²42LaGrange CountyLaGrange County: 41.2 inhabitants per km²41.2Adams CountyAdams County: 41 inhabitants per km²41Marshall CountyMarshall County: 40.1 inhabitants per km²40.1Whitley CountyWhitley County: 39.7 inhabitants per km²39.7Dubois CountyDubois County: 39.3 inhabitants per km²39.3
inhabitants per km². Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-09.

Full ranking

RankCounties2021
inhabitants per km²		Change on 2020
1Marion County947.1-0.5%
2Lake County386.20%
3Hamilton County350+2.4%
4Vanderburgh County297.9-0.1%
5St. Joseph County229.6-0.2%
6Allen County228.6+0.8%
7Floyd County209.3-0%
8Johnson County198+1.3%
9Elkhart County172.5-0%
10Hendricks County170.6+2.4%
11Porter County161.1+0.7%
12Tippecanoe County145+0.5%
13Monroe County141.6+2.9%
14Clark County127.4+1.2%
15Madison County111.5+0.3%
16Delaware County110.3+0.2%
17Howard County110.1-0%
18Hancock County103.3+2.1%
19Vigo County101.5-0.1%
20Bartholomew County78.5+0.6%
21LaPorte County72.5+0.1%
22Morgan County69.1+0.6%
23Boone County66.6+2.6%
24Warrick County64.9+1%
25Dearborn County64.4+0.2%
26Wayne County63.8-0.1%
27Grant County61.7-0.5%
28Kosciusko County58.3+0.1%
29Scott County49.5+0.1%
30Henry County48.20%
31DeKalb County46.2+0.2%
32Noble County44.5-0.2%
33Steuben County43.4+0.7%
34Shelby County42.30%
35Fayette County42+0.1%
36LaGrange County41.2-0.1%
37Adams County41+0.4%
38Marshall County40.1+0.1%
39Whitley County39.7+0.5%
40Dubois County39.3-0.3%
41Lawrence County38.7+0.1%
42Huntington County37.1+0.4%
43Miami County36-2.9%
44Jefferson County35.3-0.5%
45Cass County35.2-0.6%
46Jackson County35-0.5%
47Harrison County31.7+0.3%
48Clinton County31.4-0.6%
49Daviess County30-0%
50Putnam County29.8+0.9%
51Wells County29.5-0%
52Starke County29.2-0.1%
53Montgomery County29.1+0.2%
54Wabash County28.9-0.1%
55Clay County28.5-0.1%
56Jennings County28.2-0.3%
57Blackford County28.2-0.5%
58Decatur County27.3-0.6%
59Knox County26.9-0.8%
60Ohio County26.8+1%
61Gibson County26.1-0.3%
62Ripley County25.10%
63Posey County23.7-0.1%
64Vermillion County23.20%
65Franklin County23+0.4%
66Jasper County22.9+0.8%
67Tipton County22.8-0.1%
68Greene County22+0.1%
69Owen County21.5+0.4%
70Fulton County21.4-0.3%
71Carroll County21.3+0.9%
72Washington County21.1-0.4%
73Randolph County20.80%
74Jay County20.4-0.9%
75Perry County19.3-0.3%
76Spencer County19.3+0.1%
77Brown County19.3+0.6%
78Orange County19.2-0.2%
79White County18.9+0.1%
80Sullivan County17.9-0.2%
81Switzerland County17.3+1.2%
82Union County16.8-0.9%
83Fountain County16.1-0.1%
84Rush County15.8-0.5%
85Parke County14.3+2.2%
86Pike County14.1-0.6%
87Newton County13.3+0.2%
88Crawford County13.3-0.3%
89Martin County11.3-0.1%
90Pulaski County11-1.3%
91Warren County8.9+0.3%
92Benton County8.3-0.3%

Other periods

About this ranking

Resident population divided by land area in km². World Bank figures use mid-year population and land area excluding inland water.

United States: Census Bureau population estimates for 1 July divided by land area (water excluded) from the latest Census Gazetteer files. US tables often give people per square mile; multiply persons per km² by 2.59 to compare.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. Population Estimates Program resident population on 1 July divided by land area from the latest Census Gazetteer files, persons per km². https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/. Retrieved 2026-10-09.

Use this data in your AI agent

Invokely serves this figure to AI assistants through MCP and to code through a REST API, with the source and citation attached. Ask your assistant:

Rank Counties in Indiana by population density using official data, and cite the source.
rank_places {"indicator":"population_density","level":"province","within":"Indiana","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=population_density&level=province&within=Indiana&limit=10

Connect Claude, ChatGPT or Cursor in one step. The trial answers 25 calls a day without an account.

Questions

Which county has the highest population density?

Marion County, with 947.1 inhabitants per km² in 2021, according to the U.S. Census Bureau.

Which county has the lowest population density?

Benton County, with 8.3 inhabitants per km² in 2021.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Population Estimates Program resident population on 1 July divided by land area from the latest Census Gazetteer files, persons per km². Retrieved 2026-10-09.

Population density: other rankings

Counties in Indiana: more rankings