Hickory Grove is an unincorporated community and Edge city in Ellington Township, Adams County, Illinois, United States.

This includes the Columbus Road/Wisman Lane interchanges and the Rim Road subdivision on State Street.

Originally Hickory Grove was left untouched by the urban sprawl of Quincy, but in the early 1990s Illinois Route 336 was upgraded to Interstate Highway standards as Interstate 172.

Prairie Trail is a new shopping complex built as the first commercial zone of Quincy east of Interstate 172.

Initial tenants included: Lowe's, Kohl's, Old Navy, T.J. Maxx, MC Sports, Great Clips salon, Shoe Carnival, Buffalo Wild Wings, and Best Buy.