Monmouth Beach is a borough in Monmouth County, New Jersey, United States. As of the 2010 United States Census, the borough's population was 3,279, reflecting a decline of 316 (-8.8%) from the 3,595 counted in the 2000 Census, which had in turn increased by 292 (+8.8%) from the 3,303 counted in the 1990 Census.
The area was first settled in 1668 and grew into a community with the arrival of the Long Branch and Sea Shore Railroad.
Monmouth Beach was incorporated as a borough on March 9, 1906, by an act of the New Jersey Legislature, when it was created from portions of Ocean Township.
According to the United States Census Bureau, the borough had a total area of 2.07 square miles (5.37 km2), including 1.04 square miles (2.70 km2) of land and 1.03 square miles (2.67 km2) of water (49.81%).
The borough is a small beach community located on the Jersey Shore, known for its Victorian houses and the new multimillion-dollar homes located throughout the neighborhood. It was recently affected by Hurricane Sandy, damaging multiple homes. Monmouth Beach is one square mile, with the ocean to the east and the Shrewsbury River to the northwest. In the Forbes magazine 2012 rankings of "America's Most Expensive ZIP Codes", the borough was ranked 276th, with a median price of $937,020.
Unincorporated communities, localities and place names located partially or completely within the township include Galilee. The Sea Bright–Monmouth Beach Seawall parallel to the ocean.
The borough is bordered by the Monmouth County communities of Little Silver, Long Branch, Oceanport, Rumson and Sea Bright.
Within Monmouth Beach are two beach clubs. These are Monmouth Beach Bathing Pavilion, known to locals as "Little Monmouth", and Monmouth Beach Bath and Tennis Club, also known as "Big Monmouth". These spacious beach clubs equipped with pool and beach access. They have lockers, activities, swim teams, and more.