Grove eventually lost its railroad connection in 1940. However, Grove’s location near the northern border of the county, and not near the county center, made it inconvenient for some county residents to visit, and after a county-wide vote in 1908, Jay was redesignated as the county seat. Grove was the only incorporated town in Delaware County by the time of Oklahoma statehood in 1907, and became the county seat. Grove was aided in 1900 by connection to the Arkansas and Oklahoma Railroad (later acquired by the St. A post office, named 'Brennen', was located in the limits of present-day Grove in 1888, but the city was not incorporated until the 1890s. It was named for a grove of trees where it was sited.
Prior to Oklahoma statehood, Grove was part of the Delaware District of the Cherokee Nation in Indian Territory. Grove is surrounded by Grand Lake o’ the Cherokees, a professional bass fishing tournament lake and recreational hotspot during the travel season of Memorial Day to Labor Day. The population was 6,623 at the 2010 census, an increase of 27.6 percent over the figure of 5,131 recorded in 2000. Grove is a city in Delaware County, Oklahoma, United States.
