thumb|left|250px|Brielle welcome sign at the border with Manasquan on Union Avenue According to the United States Census Bureau, the borough had a total area of 2.37 square miles (6.14 km2), including 1.76 square miles (4.55 km2) of land and 0.61 square miles (1.59 km2) of water (25.86%).
thumb|left|250px|Brielle welcome sign at the border with Manasquan on Union Avenue According to the United States Census Bureau, the borough had a total area of 2.37 square miles (6.14 km2), including 1.76 square miles .(4.55 km2) of land and 0.61 square miles (1.59 km2) of water (2586%).