Map of DeKalb County, Indiana

DeKalb County is a county in the U.S. state of Indiana. As of the 2020 United States Census, the population was 43,265. The county seat is Auburn.

DeKalb County overview:
Name:	DeKalb County
FIPS code:	18-033
State:	Indiana
Founded:	7 February 1835 (authorized) 1837 (organized)
Named for:	Johann, Baron de Kalb
Seat:	Auburn
Largest city:	Auburn
Total Area:	363.85 sq mi (942.4 km²)
Land Area:	362.82 sq mi (939.7 km²)
Total Population:	43,265
Population Density:	119.1/sq mi (46.0/km²)

DeKalb County location map. Where is DeKalb County?

DeKalb County location on the U.S. Map. Where is DeKalb County. — Location of DeKalb County in the the United States.

DeKalb County location on the Indiana map. Where is DeKalb County. — Location of DeKalb County in Indiana.

History

On 7 February 1835, the Indiana State Legislature passed an omnibus bill that authorized the creation of thirteen counties in northeast Indiana on previously unorganized land (including the recent Wabash New Purchase). The organization of the county’s government commenced in 1837. It was named for General Johann de Kalb, a Continental Army officer from Bavaria, who was killed at the Battle of Camden in South Carolina. The first settlers in the future DeKalb County were from New England, settling what was then known as the Northwest Territory. These people were “Yankee” migrants, descended from the English Puritans who settled New England in the colonial era. In the 1870s immigrants from Ireland and Germany began arriving in DeKalb County, in large numbers.

DeKalb County Road Map

DeKalb CountyStreet Map. — Street map of DeKalb County, Indiana. Source: OpenStreetMap (OSM)

Geography

DeKalb County lies on the east side of Indiana; its east border abuts the western border of Ohio. Its low, rolling terrain is entirely devoted to agriculture or urban development. Its highest point (1,060 feet/320 meters ASL) is a small rise in the NW portion of the county, 2 miles (3.2 km) west of Fairfield Center. The Saint Joseph River flows southwestward through the SE portion of the county, while the western part of the county is drained by Cedar Creek.

According to the 2010 census, the county has a total area of 363.85 square miles (942.4 km), of which 362.82 square miles (939.7 km) (or 99.72%) is land and 1.03 square miles (2.7 km) (or 0.28%) is water.

Adjacent counties

LaGrange County – northwest
Steuben County – north
Williams County, Ohio – northeast
Defiance County, Ohio – southeast
Allen County – south
Noble County – west

Cities and towns

Altona
Ashley
Auburn (county seat)
Butler
Corunna
Garrett
Hamilton
Saint Joe
Waterloo

Unincorporated communities

Artic
Auburn Junction
Butler Center
Cedar
Concord
Fairfield Center
Hopewell
Moore
New Era
Newville
Orangeville
Saint Johns
Sedan
Spencerville
Stafford Center
Summit
Taylor Corner

Townships

Butler
Concord
Fairfield
Franklin
Grant
Jackson
Keyser
Newville
Richland
Smithfield
Spencer
Stafford
Troy
Union
Wilmington

Major highways

Interstate 69
U.S. Route 6
State Road 1
State Road 3
State Road 4
State Road 8
State Road 101
State Road 205
State Road 327
State Road 427