[21] Sea Girt was formed as a borough by an act of the New Jersey Legislature on March 29, 1917, from portions of Wall Township, based on the results of a referendum held on May 1, 1917.

It blew off the roof of the New Jersey Youth Challenge Academy, with debris strewn up to 250 yards (230 m).

[1][2] Wreck Pond is a tidal pond located on the coast of the Atlantic Ocean, surrounded by Wall Township and the boroughs of Sea Girt, Spring Lake and Spring Lake Heights.

The Wreck Pond watershed covers about 12.8 square miles (33 km2) in eastern Monmouth County.

[27][28][29] The 2010 United States census counted 1,828 people, 823 households, and 546 families in the borough.

[35] As of the 2000 United States census[15] there were 2,148 people, 942 households, and 636 families residing in the borough.

[6] The borough form of government used by Sea Girt is a "weak mayor / strong council" government in which council members act as the legislative body with the mayor presiding at meetings and voting only in the event of a tie.

The mayor can veto ordinances subject to an override by a two-thirds majority vote of the council.

[38][39] As of 2025[update], the mayor of Sea Girt Borough is Republican Donald E. Fetzer, whose term of office ending December 31, 2027.

[3][40][41][42][43] In August 2021, the borough council selected Donald E. Fetzer from a list of three candidates nominated by the Republican municipal committee to fill the mayoral term ending in December 2023 that had been held by Francis K. "Ken" Farrell until his resignation from office the previous month.

[45] In June 2019, the borough council appointed Mark Clemmensen to fill the seat expiring in December 2020 that had been held by William Foley until he left office.

[46] Matthew Begley was appointed to fill the seat expiring in December 2021 that had been held by Anne B.

[49] For the 119th United States Congress, New Jersey's 4th congressional district is represented by Chris Smith (R, Manchester Township).

[52] For the 2024-2025 session, the 10th legislative district of the New Jersey Legislature is represented in the State Senate by James W. Holzapfel (R, Toms River) and in the General Assembly by Paul Kanitra (R, Point Pleasant Beach) and Gregory P. McGuckin (R, Toms River).

It follows Seventh Avenue south to north on the west side of the borough near and along the border with Wall Township, connecting Manasquan in the south to Spring Lake Heights in the north.

Diesel service operates from Hoboken Terminal to Bay Head, New Jersey.

Electric service operates from Penn Station to Long Branch, New Jersey, where the electrified portion of the line ends.

During the summer months at Sea Girt, a cooling afternoon sea breeze is present on most days, but episodes of extreme heat and humidity can occur with heat index values at or above 95.0 °F (35.0 °C).

On average, the wettest month of the year is July which corresponds with the annual peak in thunderstorm activity.

The plant hardiness zone at Sea Girt Beach is 7a with an average annual extreme minimum air temperature of 4.0 °F (−15.6 °C).