Lawrenceville
- County:
- Lawrence County
- County Seat:
- Yes
- Area (mi²):
- 2.164
- State:
- Illinois
Lawrenceville is a city located in Lawrence County, Illinois. Lawrenceville has a 2026 population of 4,315. It is also the county seat of Lawrence County. Lawrenceville is currently growing at a rate of 0.84% annually and its population has increased by 2.91% since the most recent census, which recorded a population of 4,193 in 2020.