Cairo, OH

ZIP code 45820 covers the area of Celina, Ohio. This charming town is home to Grand Lake St. Marys State Park, a popular recreation spot for boating and fishing enthusiasts. The Mercer County Fairgrounds also resides within this ZIP code, hosting various events and activities throughout the year. Celina is a vibrant community with a mix of outdoor attractions and local amenities for residents and visitors to enjoy.