State Line
- County:
- Greene County
- County Seat:
- No
- Area (mi²):
- 4.264
- State:
- Mississippi
State Line is a town located in Greene County, Mississippi. State Line has a 2026 population of 459. State Line is currently growing at a rate of 0.66% annually and its population has increased by 2.46% since the most recent census, which recorded a population of 448 in 2020.