Blooming Grove is an unincorporated community in northeastern North Bloomfield Township, Morrow County, Ohio, United States. The community is located at the junction of State Route 97 and Morrow County Road 20. The nearest city is Galion, Ohio, located to the northwest. Mount Gilead, the county seat of Morrow County, is located southwest of Blooming Grove on State Route 61.
The community then known as Corsica was laid out in 1822 by Salmon E. Harding. In 1835, the town was renamed to its present form of Blooming Grove.
The community is the nearest settlement to the birthplace of Warren G. Harding, the 29th President of the United States of America. The Harding birthplace is no longer standing; however, the site is marked by an Ohio Historical Society Marker.