Ottawa County, Ohio Business Directory & Community Resources
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View the 2025 U.S. Census demographic profile for Ottawa County
Ottawa County — County Seat: Port Clinton
2026 Population Estimate: 39,233 | Official Website: https://co.ottawa.oh.us/
Ottawa County is a unique northwestern Ohio county centered on Lake Erie's most distinctive geography, with Port Clinton as its county seat — a city that styles itself the Walleye Capital of the World. The county encompasses the storied Lake Erie Islands — including South Bass Island (home of Put-in-Bay, one of Ohio's most popular summer destinations), Kelley's Island (famous for its glacial grooves), Rattlesnake Island, and North Bass Island — accessible by ferry from Port Clinton and Sandusky. The county is also home to Cedar Point (partially in Erie County) and the Marblehead Lighthouse — Ohio's oldest lighthouse in continuous operation. The Ottawa National Wildlife Refuge provides critical habitat for migratory waterfowl along the Lake Erie Marsh corridor — one of the most important bird migration routes in North America. Tourism, fishing, and light manufacturing dominate the economy.
▸ Key Industries & Major Employers
Tourism, commercial fishing, manufacturing, and agriculture.
Major employers include the Catawba Island and Put-in-Bay tourism economy, Ottawa County Community Hospital, Heinz/Kraft (tomato processing, historically), and small manufacturers. The Lake Erie island ferry and tourism industry employs thousands seasonally. The Davis-Besse Nuclear Power Station (FirstEnergy) is a major energy and employment anchor.
▸ Notable Economic Development Initiatives
Ottawa County is Ohio's premier Lake Erie tourism destination. The Port Clinton–Sandusky tourism corridor attracts over 4 million visitors annually. FirstEnergy's Davis-Besse nuclear plant is in an extended license period, ensuring continued high-wage employment. The Ottawa County Improvement Corporation coordinates economic development. A 2024 waterfront improvement grant enhanced Port Clinton's downtown marina district.
▸ Infrastructure & Investment Highlights
SR-2 (Lake Erie shoreline) is the primary corridor. Ferries to South Bass Island (Put-in-Bay) and Kelleys Island operate seasonally. The Ottawa County Airport supports private and charter aviation. Davis-Besse nuclear transmission lines are critical regional power infrastructure.