Lawrenceville is a city located in Lawrence County Illinois. It is also the county seat of Lawrence County. With a 2020 population of 4,415, it is the 351st largest city in Illinois and the 5125th largest city in the United States . Lawrenceville is currently growing at a rate of 0.18% annually and its population has increased by 1.54% since the most recent census, which recorded a population of 4,348 in 2010. Lawrenceville reached it's highest population of 6,328 in 1950. Spanning over 2 miles, Lawrenceville has a population density of 2,041 people per square mile.
The average household income in Lawrenceville is $54,842 with a poverty rate of 25.35%. The median rental costs in recent years comes to $691 per month, and the median house value is $73,500. The median age in Lawrenceville is 42.8 years, 41.3 years for males, and 44.4 years for females.