Columbus Grove is a village in Pleasant Township, Putnam County, Ohio, United States.

[5] A large share of the early settlers being natives of Columbus, Ohio caused the name to be selected.

[8] President Grover Cleveland made an impromptu speech here from a train caboose during his Goodwill Tour of 1887.

[12] On October 10th, 2024, an SUV was hit by a CSX train at approximately 9:35 a.m.[13] According to the Putnam County Deputies, 23-year-old Honesty Mallory of Lima, Ohio was heading south on Main Street, when she was struck by a CSX train that was also heading south.

According to the United States Census Bureau, the village has a total area of 1.08 square miles (2.80 km2), all land.

There were 916 housing units at an average density of 848.1 per square mile (327.5/km2).

27.4% of all households were made up of individuals, and 12.6% had someone living alone who was 65 years of age or older.

27.2% of all households were made up of individuals, and 13.6% had someone living alone who was 65 years of age or younger.

[20] The town hall, which also serves as the police station, is located on the corner of East Sycamore St. and N Broadway St.