Civic Square is the government district in Downtown New Brunswick, the county seat of Middlesex County, New Jersey, where numerous county governmental buildings are located along with other city and federal public buildings such as New Brunswick City Hall, the New Brunswick Main Post Office, and the New Brunswick Free Public Library . South of New Brunswick Station, it is bounded by the city's theater district, which includes the Mason Gross School of the Arts, the State Theatre, the Crossroads Theatre, George Street Playhouse and the Livingston Avenue Historic District which includes the Henry Guest House and the Willow Grove Cemetery.
The last of a series of county courthouses, the Middlesex County Court House was built in 1958. The building was extensively renovated in 2003, including a partial new facade.
Skyline Tower, at 14 stories and 59 m (194 ft), was originally built in 1967 as the Middlesex County Administrative Building. It was extensively renovated in 2003 as residential mixed-used building. A new Administration Building was completed in 1999.
Opened in 2000, Middlesex County Family Courthouse houses the Middlesex County Family Part, the New Brunswick Parking Authority, and the New Brunswick Center of Middlesex County College
Completed in May 2000, the Public Safety Building houses the U.S. Postal Service, the New Brunswick Police Department, the New Brunswick Municipal Courts, and the Middlesex County Prosecutor.