Indiana county populations
92 supported county-equivalent records in Indiana; July 1, 2025 population, 2024–2025 growth and 2025 land-area density.
Population totals use July 1, 2025 observations from PEP Vintage 2025. Change is measured since July 1, 2024. County equivalents are included, including Connecticut planning regions. Missing density is displayed as unavailable, never as zero.
Population table and filters
Whole-dataset downloads| Place | Population · 2025 | Change · 2024–25 | Growth · 2024–25 | People / sq. mi. |
|---|---|---|---|---|
| Marion CountyIndiana · County equivalent · 18097 | 992,196 | +1,983 | +0.20% | 2,505.6 |
| Lake CountyIndiana · County equivalent · 18089 | 504,612 | +2,115 | +0.42% | 1,011.5 |
| Allen CountyIndiana · County equivalent · 18003 | 402,329 | +3,235 | +0.81% | 612.2 |
| Hamilton CountyIndiana · County equivalent · 18057 | 387,036 | +7,351 | +1.94% | 981.4 |
| St. Joseph CountyIndiana · County equivalent · 18141 | 272,861 | -75 | -0.03% | 596.1 |
| Elkhart CountyIndiana · County equivalent · 18039 | 208,774 | +578 | +0.28% | 450.8 |
| Hendricks CountyIndiana · County equivalent · 18063 | 193,510 | +2,746 | +1.44% | 475.6 |
| Tippecanoe CountyIndiana · County equivalent · 18157 | 190,456 | +546 | +0.29% | 381.8 |
| Vanderburgh CountyIndiana · County equivalent · 18163 | 181,995 | +855 | +0.47% | 779.8 |
| Porter CountyIndiana · County equivalent · 18127 | 176,049 | +629 | +0.36% | 421.1 |
| Johnson CountyIndiana · County equivalent · 18081 | 174,262 | +3,239 | +1.89% | 543.9 |
| Monroe CountyIndiana · County equivalent · 18105 | 143,345 | +513 | +0.36% | 363.3 |
| Madison CountyIndiana · County equivalent · 18095 | 135,088 | +1,516 | +1.13% | 298.9 |
| Clark CountyIndiana · County equivalent · 18019 | 130,451 | +2,688 | +2.10% | 350.2 |
| Delaware CountyIndiana · County equivalent · 18035 | 113,106 | +354 | +0.31% | 288.5 |
| LaPorte CountyIndiana · County equivalent · 18091 | 111,294 | -55 | -0.05% | 186.0 |
| Vigo CountyIndiana · County equivalent · 18167 | 106,512 | +314 | +0.30% | 263.9 |
| Hancock CountyIndiana · County equivalent · 18059 | 90,969 | +2,092 | +2.35% | 297.3 |
| Bartholomew CountyIndiana · County equivalent · 18005 | 85,729 | +787 | +0.93% | 210.7 |
| Howard CountyIndiana · County equivalent · 18067 | 83,904 | -114 | -0.14% | 286.3 |
| Floyd CountyIndiana · County equivalent · 18043 | 82,153 | +354 | +0.43% | 553.3 |
| Kosciusko CountyIndiana · County equivalent · 18085 | 80,892 | +123 | +0.15% | 152.2 |
| Boone CountyIndiana · County equivalent · 18011 | 80,689 | +2,049 | +2.61% | 190.8 |
| Morgan CountyIndiana · County equivalent · 18109 | 74,967 | +922 | +1.25% | 185.6 |
| Warrick CountyIndiana · County equivalent · 18173 | 66,803 | +482 | +0.73% | 173.7 |
| Grant CountyIndiana · County equivalent · 18053 | 66,524 | +288 | +0.43% | 160.7 |
| Wayne CountyIndiana · County equivalent · 18177 | 66,169 | -167 | -0.25% | 164.7 |
| Dearborn CountyIndiana · County equivalent · 18029 | 51,609 | -105 | -0.20% | 169.2 |
| Henry CountyIndiana · County equivalent · 18065 | 49,137 | +116 | +0.24% | 125.4 |
| Noble CountyIndiana · County equivalent · 18113 | 47,937 | -9 | -0.02% | 116.7 |
| Jackson CountyIndiana · County equivalent · 18071 | 47,370 | -66 | -0.14% | 92.9 |
| Marshall CountyIndiana · County equivalent · 18099 | 46,599 | +61 | +0.13% | 105.0 |
| Shelby CountyIndiana · County equivalent · 18145 | 45,882 | +269 | +0.59% | 111.6 |
| Lawrence CountyIndiana · County equivalent · 18093 | 45,568 | +338 | +0.75% | 101.5 |
| DeKalb CountyIndiana · County equivalent · 18033 | 44,535 | +197 | +0.44% | 122.7 |
| Dubois CountyIndiana · County equivalent · 18037 | 44,016 | +74 | +0.17% | 103.0 |
| LaGrange CountyIndiana · County equivalent · 18087 | 41,305 | +187 | +0.45% | 108.8 |
| Harrison CountyIndiana · County equivalent · 18061 | 40,437 | +251 | +0.62% | 83.5 |
| Montgomery CountyIndiana · County equivalent · 18107 | 38,954 | +44 | +0.11% | 77.2 |
| Putnam CountyIndiana · County equivalent · 18133 | 37,876 | +118 | +0.31% | 78.8 |
| Cass CountyIndiana · County equivalent · 18017 | 37,836 | -93 | -0.25% | 91.8 |
| Huntington CountyIndiana · County equivalent · 18069 | 37,224 | +259 | +0.70% | 97.3 |
| Adams CountyIndiana · County equivalent · 18001 | 36,650 | +108 | +0.30% | 108.1 |
| Knox CountyIndiana · County equivalent · 18083 | 35,652 | -105 | -0.29% | 69.1 |
| Whitley CountyIndiana · County equivalent · 18183 | 35,046 | +114 | +0.33% | 104.4 |
| Steuben CountyIndiana · County equivalent · 18151 | 34,799 | +11 | +0.03% | 112.7 |
| Miami CountyIndiana · County equivalent · 18103 | 34,487 | +22 | +0.06% | 92.3 |
| Daviess CountyIndiana · County equivalent · 18027 | 34,209 | +78 | +0.23% | 79.6 |
| Jasper CountyIndiana · County equivalent · 18073 | 33,894 | +239 | +0.71% | 60.6 |
| Clinton CountyIndiana · County equivalent · 18023 | 33,322 | +15 | +0.05% | 82.3 |
Use these comparisons consistently
A larger population does not necessarily mean faster growth. Absolute change measures the number of residents gained or lost; percentage change divides that difference by the starting population. The percentage column here covers one July-to-July interval, rather than a decade or a partial calendar year. Percent growth is suppressed where the starting population is zero.
Density divides the unrounded July 1, 2025 population by matching 2025 Gazetteer land area. It is measured in people per square mile and excludes water area. These geographic averages depend on the size and definition of each unit, so a county’s density is not directly comparable to a built-up city neighborhood.
County-equivalent names and units vary by state. Connecticut planning regions are represented in the current series; linking older county series requires a documented relationship. Incorporated places may cross county boundaries and do not form an exhaustive county breakdown.
Exports contain the current page’s visible rows after filtering, with reference date and release metadata. Use whole-dataset downloads for every row or select a compatible comparison to inspect a longer interval. The initial pep-2025-r1 snapshot remains reproducible when future releases are added.