Defiance County
Also known as Defiance County, Ohio, Defiance County, OH
county in Ohio, United States
Key facts
- Country
- United States
- State
- Ohio
- Founded
- April 7, 1845
- Named after
- Fort Defiance
- Seat
- Defiance
- Largest city
- Defiance
- Total
- 414 sq mi (1,070 km )
- Land
- 411 sq mi (1,060 km )
- Water
- 2.7 sq mi (7.0 km ) 0.7%
- Estimate 2025
- 38,292
- Density
- 92/sq mi (36/km )
- Time zone
- UTC−5 ( Eastern )
- Summer dst
- UTC−4 ( EDT )
~7 min read
Article
Defiance County is a county located in the U.S. state of Ohio. As of the 2020 census, the population was 38,286. Its county seat and largest city is Defiance. The county was named after an early Army fortification, Fort Defiance, which was so named by Mad Anthony Wayne to signify the settlers' "defiance" of the Indians. The Defiance, OH Micropolitan Statistical Area includes all of Defiance County.
Geography