Join us on...
Pinterest Twitter Facebook
Bookmark and Share Bookmark and Share

Grand Lake St. Mary's State Park

834 Edgewater Drive
Saint Marys, OH 45885

Toll Free: (866) 644-6727

Local: (419) 394-2774

Normal Price(s): $22.00 - $26.00 *
PA rate(s): $11.00 - $13.00 *
Grand Lake St. Mary's State Park Amenities

50% Tent Sites


Dump Station







Grand Lake St. Mary's State Park Links
14.11 miles from exit 110 from I-75
*Note: This is the closest exit based on our data. CLICK HERE to view the RV Park's directions.
Grand Lake St. Mary's State Park Photos
Passport America Highlights

181 total RV sites, 148 electric sites w/ 50 amp electric service and 50', 33 full hook-up sites, and 5 camper cabins. 2 shower houses with flush toilets, dump station, laundry, camp store, swimming beach, boat launch ramps, dock, volleyball, horseshoes, miniature golf, canoe and bike rentals. Located 35 miles from Lima, and 74 miles from Dayton. Local Attractions: Lake Loramie State Park offers fishing, boating, swimming and camping. The Miami-Erie Trail, a 47 mile portion of the statewide Buckeye Trail, begins at Lake Loramie and passes within 1.5 miles of Grand Lake St. Marys State Park. St. Marys Fish Hatchery, located on the lake's eastern shore off East Bank Road, is the only state hatchery that raises largemouth bass. The Neil Armstrong Air and Space Museum is located in Wapakoneta at I-75 Exit 111. The museum chronicles Ohioans' contributions to flight. The Auglaize-Mercer County Convention/Visitors Bureau is located next to the park office. For more information on area attractions, stop by or call (800) 860-4726.

Grand Lake St. Mary's State Park Directions

GPS: 40.549434N, -84.438238W
Take I-75 to State Route 33 west to State Route 29 west. Then take State Route 29 west to State Route 364 and go south (left) to State Route 703 east to park entrance.

Grand Lake St. Mary's State Park Notes

PA discount is valid Sunday through Wednesday. PA discount is not valid during holidays. PA discount is subject to availability and is not valid with any other discounts. Please call 866-644-6727 or visit to check availability and make reservations. There is a reservation fee of $8.25. Maximum of 2 pets allowed. *Rates are subject to change.

Grand Lake St. Mary's State Park Tent Camping

Rate: $22.00-$26.00*, P.A.: $11.00-$13.00*

Grand Lake St. Mary's State Park Rental Accommodations

No information available for rental accommodations.