Lawrenceville is a city located in Gwinnett County, Georgia. Lawrenceville has a 2026 population of 31,877. It is also the county seat of Gwinnett County. Lawrenceville is currently growing at a rate of 2.09% annually and its population has increased by 4.37% since the most recent census, which recorded a population of 30,542 in 2020.