Auglaize County, Ohio

Auglaize County, Ohio
County courthouse in Wapakoneta
County courthouse in Wapakoneta
Flag of Auglaize County, Ohio
Official seal of Auglaize County, Ohio
Map of Ohio highlighting Auglaize County
Location within the U.S. state of Ohio
Coordinates: 40°34′N 84°13′W / 40.56°N 84.22°W / 40.56; -84.22
Country United States
State Ohio
FoundedFebruary 14, 1848
Named forAuglaize River
SeatWapakoneta
Largest cityWapakoneta
Area
 • Total
402 sq mi (1,040 km2)
 • Land401 sq mi (1,040 km2)
 • Water0.5 sq mi (1.3 km2)  0.1%
Population
 (2020)
 • Total
46,422
 • Estimate 
(2025)
45,909 Decrease
 • Density116/sq mi (45/km2)
Time zoneUTC−5 (Eastern)
 • Summer (DST)UTC−4 (EDT)
Congressional district4th
Websitewww.auglaizecounty.org

Auglaize County (/ˈɔːɡleɪz/) is a county in Northwestern Ohio, United States of America. As of the 2020 census, the population was 46,442. Its county seat and largest city is Wapakoneta.

Auglaize County comprises the Wapakoneta Micropolitan Statistical Area, which is also included in the Lima-Van Wert-Celina Combined Statistical Area.