Monticello
- County:
- Lawrence County
- County Seat:
- Yes
- Area (mi²):
- 4.171
- State:
- Mississippi
Monticello is a town located in Lawrence County, Mississippi. Monticello has a 2026 population of 1,369. It is also the county seat of Lawrence County. Monticello is currently declining at a rate of -1.01% annually and its population has decreased by -4.86% since the most recent census, which recorded a population of 1,439 in 2020.