Mercer County Map
The County of Mercer is located in the State of Ohio. Find directions to Mercer County, browse local businesses, landmarks, get current traffic estimates, road conditions, and more. According to the 2020 US Census the Mercer County population is estimated at 41,274 people. The Mercer County time zone is Eastern Daylight Time which is 5 hours behind Coordinated Universal Time (UTC).
Nearby counties include Adams County, Jay County, Auglaize County, Darke County, Shelby County, Van Wert County.
Top cities include Celina, Coldwater, St. Henry, Fort Recovery, Rockford