The Borough of Tinton Falls has a land area of 15.15 square (39 km2) and is located in eastern central Monmouth county. It was first settled in 1675 by Colonial Lewis Morris from Monmouthshire, Wales who was also responsible for naming the county. The highest waterfall on the Atlantic Costal plain is located at the headwaters of the Shrewsbury River. Much of Tinton Falls' residential development took place in the post World War II suburban housing boom. Tinton Falls has experienced continued residential growth in recent decades because of its proximity to major highways and access to retail and service centers.