Allen County, Indiana
Allen County: county in Indiana, United States
About
Allen County is a county located in the U.S. state of Indiana. As of the 2010 census, the population was 355,329 and a population density of 208 people per km². After 10 years in 2020 county had an estimated population of 382,187 inhabitants. Its county seat is Fort Wayne. The county was created 202 years ago in 1823.
County Snapshot
Allen County at a glance
Allen County currently has 12 quality-checked populated place pages linked on MapSof, making it easier to jump from the county overview into local city pages.
Mapped populated places
12
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
Fort WaynePopulation 272,398
Top linked places
Quick Facts about Allen County
| Population | 382,187 (2020) |
| Country | United States of America |
| State | Indiana (United States) |
| Different from | Allegany County, Allegheny County, Allegan County, Allegany County, Alleghany County |
| Area | 1710 km2 |
| Water as percent of area | 0.41% |
| Land as percent of area | 99.59% |
| Latitude & Longitude | 41.0909,-85.0666 |
| Named for | John Allen |
| Altitude | 758 feet / 231 meters |
| Capital | Fort Wayne |
| Establishment | January 01, 1824 |
| Time Zone | Eastern Time Zone |
| Local time | 12:59:53 (15th April 2026) |
| Density | 224 Pop. per km² as of 2020 |
| Population growth | 7.03% (2010-2020) |
| Weather | 73℉ Rain Showers Likely 7-days weather |
Geography
Allen County is located at 41°5'27"N 85°3'60"W (41.0908700, -85.0665600). It has 9 neighbors: Paulding County, Adams County, DeKalb County, Huntington County, Noble County, Wells County, Whitley County, Defiance County and Van Wert County.
Allen County map
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The largest city of Allen County is Fort Wayne with a population of 272,398. Other cities include, Westchester population 21,245, New Haven population 15,966, Huntertown population 6,874 and Leo-Cedarville population 3,882. See all Allen County cities & populated places.
Allen County Populated Places
Cities, towns, neighborhoods & other populated places in Allen County.
| City Name | Population | Title |
|---|---|---|
| Fort Wayne | 272,398 | The second most populous city in Indiana and the center of the Fort Wayne metropolitan area. |
| Aboite | 90,543 | Township in Allen County, Indiana |
| Westchester | 21,245 | Unincorporated community in Jay County, Indiana |
| New Haven | 15,966 | City in Indiana |
| Huntertown | 6,874 | Town in Allen County, Indiana, United States |
| Leo-Cedarville | 3,882 | Town in Indiana, United States |
| Woodburn | 1,655 | City in Indiana, USA |
| Monroeville | 1,360 | City in Allen County, Indiana, United States of America |
| Grabill | 1,164 | City in Allen County, Indiana, United States of America |
| Allen | 666 | Unincorporated community in Indiana, United States |
| Zanesville | 617 | Town in Allen and Wells counties, Indiana |
| Indian Village | 134 | City in St. |
Weather
Rain showers likely before 2pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 73.
7-Day ForecastOfficial website of Allen County
Official Website- Fort Wayne
Demographics
The population of Allen County increased by 7.03% in 10 years.
| Year | Population | % Change | Method |
|---|---|---|---|
| 2010 | 355,329 | - | census |
| 2011 | 358,974 | 1.02% | estimation process |
| 2012 | 360,890 | 0.53% | estimation process |
| 2013 | 363,355 | 0.68% | estimation process |
| 2014 | 365,147 | 0.49% | estimation process |
| 2015 | 367,362 | 0.6% | estimation process |
| 2016 | 369,412 | 0.55% | estimation process |
| 2017 | 371,723 | 0.62% | estimation process |
| 2018 | 375,079 | 0.89% | estimation process |
| 2019 | 379,299 | 1.11% | estimation process |
| 2020 | 382,187 | 0.76% | estimation process |
People born in Allen County (2)
People born in Allen County, including Indiana supreme court Steven H. David, politician from Indiana Dave Heine, .
More notable people
Other places with the same name (3)
- Allen County, Ohio county in Ohio, United States with a population of 101,980 people.
- Allen County, Kentucky county in Kentucky, United States with a population of 21,303 people.
- Allen County, Kansas county in Kansas, United States with a population of 12,399 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 |
| 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 |
| Evansville | 118,407 | The second most populous city in Indiana. |