Defiance County, Ohio

Defiance County is a county in Ohio with an estimated population of 38,315 in 2023. 4 cities, towns and Census places in it are indexed here.

Largest places in Defiance County

About Defiance County

Defiance County is one of the counties of Ohio. County governments in Ohio handle local services such as courts, property records and elections; cities and towns inside the county run their own municipal services. Population figures come from the Census Bureau's Vintage 2023 estimates, which are updated annually.