DeKalb County, Indiana

DeKalb County, Indiana
The DeKalb County Courthouse in Auburn, Indiana
Location within the U.S. state of Indiana
Coordinates: 41°22′01″N 85°03′32″W / 41.36694°N 85.05889°W / 41.36694; -85.05889
Country United States
State Indiana
FoundedFebruary 7, 1835 (authorized)
1837 (organized)
Named afterJohann, Baron de Kalb
SeatAuburn
Largest cityAuburn
Area
 • Total
363.85 sq mi (942.4 km2)
 • Land362.82 sq mi (939.7 km2)
 • Water1.03 sq mi (2.7 km2)  0.28%
Population
 (2020)
 • Total
43,265
 • Estimate 
(2024)
44,330
 • Density119.25/sq mi (46.041/km2)
Time zoneUTC−5 (Eastern)
 • Summer (DST)UTC−4 (EDT)
Congressional district3rd
WebsiteDeKalb County Government
Indiana county number 17

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.