Lawrenceville generally comprises the area contained within Lawrenceville-Pennington Road to the south, Fackler Road to the north, Keefe Road to the west, and US 206, part of which turns into Main Street in Lawrenceville, to the east. The Lawrenceville School, across Route 206, is usually considered part of the village as well. Before tract development, beginning in the early 1970s, Lawrenceville was broadly defined as stretching two to three blocks back from Route 206. The boundary became less clear as residential developments replaced farmland behind the historic village.