[20] The area was first settled in 1668 and grew into a community with the arrival of the Long Branch and Sea Shore Railroad.

[22] Monmouth Beach was incorporated from portions of Ocean Township as a borough on March 9, 1906, by an act of the New Jersey Legislature.

Monmouth Beach is one square mile, with the ocean to the east and the Shrewsbury River to the northwest.

[25] Unincorporated communities, localities and place names located partially or completely within the township include Galilee.

The borough is bordered by the Monmouth County communities of Little Silver, Long Branch, Oceanport, Rumson and Sea Bright.

The Shrewsbury River, which borders the borough, offers sailing, kayaking, and fishing.

Places to go within the area include the many restaurants, lounges, and bars in West End, and Pier Village in Long Branch.

Other notable locations include Red Bank, and the numerous beaches all along the shore towns to the north and south such as Asbury Park.

The 2010 United States census counted 3,279 people, 1,494 households, and 855 families in the borough.

[36] As of the 2000 United States census[15] there were 3,595 people, 1,633 households, and 976 families residing in the borough.

[34][35] The Borough of Monmouth Beach has been governed under the Walsh Act, by a three-member commission, since 1929.

[45] For the 119th United States Congress, New Jersey's 6th congressional district is represented by Frank Pallone (D, Long Branch).

[48] For the 2024-2025 session, the 13th legislative district of the New Jersey Legislature is represented in the New Jersey Senate by Declan O'Scanlon (R, Little Silver) and in the General Assembly by Vicky Flynn (R, Holmdel Township) and Gerard Scharfenberger (R, Middletown Township).

[83] Route 36 (Ocean Avenue) is the main highway serving Monmouth Beach.

Route 36 connects the borough to Long Branch on the south and Sea Bright to the north.

Although most summer days are slightly humid with a cooling afternoon sea breeze in Monmouth Beach, episodes of heat and high humidity can occur with heat index values above 104 °F (40 °C).

The average wettest month is July which correlates with the peak in thunderstorm activity.

During the winter months, the average annual extreme minimum air temperature is 4.4 °F (−15.3 °C).

[88] The plant hardiness zone is 7a with an average annual extreme minimum air temperature of 4.4 °F (−15.3 °C).

[89] The average date of first spring leaf-out is March 24[90] and fall color typically peaks in early-November.