According to the United States Census Bureau, the CDP had a total area of 1.043 square miles (2.701 km2), including 1.042 square miles (2.698 km2) of land and 0.001 square miles (0.002 km2) of water (0.09%) [REF].
U.S. Route 206 changes its name from "Lawrenceville-Princeton Road" to "Main Street", and then to "Lawrenceville-Trenton Road" in the center of Lawrenceville.