Jefferson County, Indiana
Jefferson County: county in Indiana, United States.
About
Jefferson County is a county located in the U.S. state of Indiana. As of the 2010 census, the population was 32,428 and a population density of 34 people per km². After 10 years in 2020 county had an estimated population of 32,110 inhabitants. Its county seat is Madison. The county was created 215 years ago in 1810.
County Snapshot
Jefferson County at a glance
Jefferson County currently has 5 quality-checked populated place pages linked on MapSof, making it easier to jump from the county overview into local city pages.
Mapped populated places
5
These counts use a stricter populated-place filter so the main lists stay focused on real city and town pages.
Indiana counties
92
Open related pagesLargest city
North MadisonPopulation 12,435
Top linked places
Quick Facts about Jefferson County
| Population | 32,110 (2020) |
| Country | United States of America |
| State | Indiana (United States) |
| Different from | Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson Parish, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County |
| Area | 940 km2 |
| Water as percent of area | 0.62% |
| Land as percent of area | 99.38% |
| Latitude & Longitude | 38.7858,-85.4386 |
| Named for | Thomas Jefferson |
| Capital | Madison |
| Establishment | November 23, 1810 |
| Time Zone | Eastern Time Zone |
| Local time | 08:48:34 (23rd September 2026) |
| Density | 34 Pop. per km² as of 2020 |
| Population growth | -0.98% (2010-2020) |
Geography
Jefferson County is located at 38°47'9"N 85°26'19"W (38.7858200, -85.4385700). It has 6 neighbors: Clark County, Jennings County, Scott County, Switzerland County, Carroll County and Trimble County.
Jefferson County map
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The largest city of Jefferson County is Hanover with a population of 3,493. . See all Jefferson County cities & populated places.
Jefferson County Populated Places
Cities, towns, neighborhoods & other populated places in Jefferson County.
| City Name | Population | Title |
|---|---|---|
| North Madison | 12,435 | Census-designated place in Lake County, Ohio |
| Hanover | 3,493 | Town in Indiana, United States |
| Kent | 1,650 | Township in Warren County, Indiana |
| Lancaster | 1,494 | Township in Wells County, Indiana |
| Saluda | 1,374 | Township in Jefferson County, Indiana |
Official website of Jefferson County
Official Website- Madison
Demographics
According to census records, the population of Jefferson County decreased by 0.98% in 10 years.
| Year | Population | % Change | Method |
|---|---|---|---|
| 2010 | 32,428 | - | census |
| 2011 | 32,272 | -0.48% | estimation process |
| 2012 | 32,436 | 0.51% | estimation process |
| 2013 | 32,390 | -0.14% | estimation process |
| 2014 | 32,402 | 0.04% | estimation process |
| 2015 | 32,297 | -0.32% | estimation process |
| 2016 | 32,230 | -0.21% | estimation process |
| 2017 | 32,013 | -0.67% | estimation process |
| 2018 | 32,157 | 0.45% | estimation process |
| 2019 | 32,308 | 0.47% | estimation process |
| 2020 | 32,110 | -0.61% | estimation process |
People born in Jefferson County (2)
People born in Jefferson County, including Illinois politician Frank Buchanan, Medal of Honor recipient Coron D. Evans, .
More notable people
Other places with the same name (24)
- Jefferson County, Kentucky county in Alabama, United States. with a population of 767,452 people.
- Jefferson County, Alabama county in Alabama, United States. with a population of 655,342 people.
- Jefferson County, Colorado county in Colorado, United States. with a population of 583,283 people.
- Jefferson County, Texas county in Texas, United States. with a population of 250,127 people.
- Jefferson County, Missouri county in Missouri, United States. with a population of 226,543 people.
- Jefferson County, New York county in New York, United States. with a population of 108,095 people.
- Jefferson County, Wisconsin county in Wisconsin, United States. with a population of 85,038 people.
- Jefferson County, Arkansas county in Arkansas, United States. with a population of 65,377 people.
- Jefferson County, Ohio county in Ohio, United States. with a population of 64,939 people.
- Jefferson County, West Virginia county in West Virginia, United States. with a population of 57,486 people.
- Jefferson County, Tennessee county in Tennessee, United States. with a population of 55,307 people.
- Jefferson County, Pennsylvania county in Pennsylvania, United States. with a population of 43,108 people.
- Jefferson County, Illinois county in Illinois, United States. with a population of 37,235 people.
- Jefferson County, Washington county in the state of Washington, United States. with a population of 32,700 people.
- Jefferson County, Idaho county in Idaho, United States. with a population of 29,871 people.
- Jefferson County, Oregon county in Oregon, United States. with a population of 24,856 people.
- Jefferson County, Kansas county in Kansas, United States. with a population of 19,032 people.
- Jefferson County, Iowa county in Iowa, United States. with a population of 18,347 people.
- Jefferson County, Georgia county in Georgia, United States. with a population of 15,267 people.
- Jefferson County, Florida county in Florida, United States of America. with a population of 14,543 people.
- Jefferson County, Montana county in Montana, United States. with a population of 12,360 people.
- Jefferson County, Nebraska county in Nebraska, United States. with a population of 7,099 people.
- Jefferson County, Mississippi county in Mississippi, United States. with a population of 6,997 people.
- Jefferson County, Oklahoma county in Oklahoma, United States. with a population of 5,949 people.
Indiana Other Counties (more counties)
| County Name | Population | Title |
|---|---|---|
| Marion County | 966,183 | County in Oregon, United States |
| Indianapolis | 877,903 | The sixteenth most populous city in the United States and the center of the Indianapolis metropolitan area. |
| Lake County | 487,536 | County in Indiana, United States |
| Allen County | 382,187 | County in Indiana, United States |
| Hamilton County | 344,238 | County in Indiana, United States |
| Fort Wayne | 272,398 | The second most populous city in Indiana and the center of the Fort Wayne metropolitan area. |
| Saint Joseph County | 271,484 | County in Indiana, United States |
| Elkhart County | 206,161 | County in Indiana, United States |
| Tippecanoe County | 196,115 | County in the northwest quadrant of Indiana, United States |
| Vanderburgh County | 182,447 | County in Indiana, United States |
| Hendricks County | 173,251 | County in Indiana, United States |
| Porter County | 170,980 | County in Indiana, United States |
| Johnson County | 160,607 | County in Indiana, United States |
| Monroe County | 148,219 | County in Indiana, United States |
| Madison County | 129,681 | County in Indiana, United States |
| Clark County | 119,266 | County in Indiana, United States |