Ottawa County Map
The County of Ottawa is located in the State of Ohio. Find directions to Ottawa County, browse local businesses, landmarks, get current traffic estimates, road conditions, and more. According to the 2020 US Census the Ottawa County population is estimated at 40,253 people. The Ottawa County time zone is Eastern Daylight Time which is 5 hours behind Coordinated Universal Time (UTC).
Nearby counties include Erie County, Lucas County, Sandusky County, Wood County.
Top cities include Port Clinton, Oak Harbor, Genoa, Elmore, Marblehead