New Jersey's 4th congressional district

New Jersey's 4th congressional district is a congressional district that stretches along the New Jersey Shore. It has been represented by Republican Chris Smith since 1981, the second-longest currently serving member of the US House of Representatives and the longest serving member of Congress from New Jersey in history.

Although the 4th district had a presence in Mercer County for decades, it lost its two towns in the county (Hamilton and Robbinsville) following the redistricting process in late 2021, which was based on the 2020 census. The district is currently contained to Monmouth County and Ocean County. With a Cook Partisan Voting Index rating of R+14, it is the most Republican district in New Jersey, and it is also the only one that did not elect a Democrat since 2018.

Counties and municipalities in the district
For the 118th and successive Congresses (based on redistricting following the 2020 Census), the district contains all or portions of two counties and 40 municipalities.

Municipalities in the district are:

Monmouth County (19)
 * Avon-By-The-Sea, Belmar, Brielle, Colts Neck Township, Eatontown, Farmingdale, Freehold Township (part; also 3rd), Howell Township, Lake Como, Manasquan, Middletown Township (part; also 6th), Ocean Township, Sea Girt, Shrewsbury, Shrewsbury Township, Spring Lake, Spring Lake Heights, Tinton Falls, Wall Township

Ocean County (21)
 * Beachwood, Berkeley Township (part; also 2nd), Bay Head, Brick, Island Heights, Jackson Township, Lacey (part; also 2nd), Lakehurst, Lakewood Township, Lavallette, Manchester Township, Mantoloking, Ocean Gate, Pine Beach, Point Pleasant Beach, Point Pleasant, Plumsted Township, Seaside Heights, Seaside Park, South Toms River, Toms River