Shannon is a town in Lee County, Mississippi. The population was 1,496 at the 2020 Census. Shannon is located on Mississippi Highway 145, west of U.S. Route 45. Chiwapa Creek flows south of the town. The town is named for Samuel Shannon, who purchased land at that location from Chickasaw Chief Itawamba in the early 1800s, then built a cabin and …Shannon is a town in Lee County, Mississippi. The population was 1,496 at the 2020 Census. Shannon is located on Mississippi Highway 145, west of U.S. Route 45. Chiwapa Creek flows south of the town. The town is named for Samuel Shannon, who purchased land at that location from Chickasaw Chief Itawamba in the early 1800s, then built a cabin and a farm. More settlers arrived following the Treaty of Pontotoc, which ceding Chickasaw land in exchange for financial compensation.