Delaware County, Indiana

Delaware County, Indiana
Delaware County Building
Location within the U.S. state of Indiana
Coordinates: 40°14′N 85°24′W / 40.23°N 85.4°W / 40.23; -85.4
Country United States
State Indiana
Founded1820 (created)
1827 (organized)
SeatMuncie
Largest cityMuncie
Area
 • Total
395.91 sq mi (1,025.4 km2)
 • Land392.12 sq mi (1,015.6 km2)
 • Water3.78 sq mi (9.8 km2)  0.95%
Population
 (2020)
 • Total
111,903
 • Estimate 
(2025)
112,637
 • Density285.38/sq mi (110.19/km2)
Time zoneUTC−5 (Eastern)
 • Summer (DST)UTC−4 (EDT)
Congressional district6th
Websitewww.co.delaware.in.us
Indiana county number 18

Delaware County is a county in the east central portion of the U.S. state of Indiana. As of 2020, the population was 111,903. The county seat is Muncie.

Delaware County is part of the Muncie metropolitan statistical area, which is part of the larger Indianapolis-Carmel-Muncie CSA.