New Jersey's 3rd congressional district
Interactive map of district boundaries since January 3, 2023
Representative	Herb Conaway D–Delran Township
Distribution	95.73% urban 4.27% rural
Population (2024)	795,627[1]
Median household income	$116,950[2]
Ethnicity	63.3%White 12.3%Black 11.3%Hispanic 8.5%Asian 3.9%Two or more races 0.7% other
Cook PVI	D+5[3]

New Jersey's 3rd congressional district is a suburban district insouthern andcentralNew Jersey.^[4] Centrally located on theI-95 corridor in theNortheast Megalopolis, at the cross-roads between theDelaware Valley region in the greaterPhiladelphiametropolitan area and theRaritan Valley region within the largerNew Yorkmetropolitan area, the district includes large swaths ofBurlington County, and portions ofMercer andMonmouth Counties.^[5] It is currently represented byDemocratHerb Conaway ofDelran Township, who was elected to succeedAndy Kim ofMoorestown and took office in January 2025, after Kim stepped down to take office in theUnited States Senate.^[6]

Under the 2020 census map, the 3rd district lost all of its municipalities inOcean County, and gained several towns in Burlington, Mercer, and northern and western Monmouth Counties.^[7]

For the118th and successive Congresses (based on redistricting following the2020 census), the district contains all or portions of three counties and 53 municipalities.^[8]

Burlington County (38):

Bass River Township,Beverly,Bordentown,Bordentown Township,Burlington,Burlington Township,Chesterfield Township,Cinnaminson Township,Delanco Township,Delran Township,Eastampton Township,Edgewater Park,Evesham Township,Fieldsboro,Florence Township,Hainesport Township,Lumberton,Mansfield Township,Medford Lakes,Medford,Moorestown,Mount Holly,Mount Laurel,New Hanover Township,North Hanover Township,Pemberton Borough,Pemberton Township,Riverside Township,Riverton,Shamong Township,Southampton Township,Springfield Township,Tabernacle Township,Washington Township,Westampton,Willingboro Township,Woodland Township,Wrightstown

Mercer County (5):

East Windsor,Hamilton Township,Hightstown,Lawrence Township,Robbinsville Township

Monmouth County (10):

Allentown,Englishtown,Freehold Borough,Freehold Township (part; also4th; includesEast Freehold andWest Freehold),Holmdel Township,Manalapan Township,Marlboro Township,Millstone Township,Roosevelt,Upper Freehold Township

From 1813 to 1815, two seats were apportioned, elected at-large on ageneral ticket. This district was organized fromNew Jersey's at-large congressional district.

District organized toNew Jersey's at-large congressional district in 1815

Member (District home)	Party	Years	Cong ress	Electoral history	Counties/towns
District re-established March 4, 1843
Isaac G. Farlee (Flemington)	Democratic	March 4, 1843 – March 3, 1845	28th	Elected in 1842. Lost re-election.	1843–1845: Hunterdon, Sussex, and Warren
John Runk (Kingwood)	Whig	March 4, 1845 – March 3, 1847	29th	Elected in 1844. Lost re-election.	1845–1847: Hunterdon, Mercer, Middlesex, and Somerset
Joseph E. Edsall (Hamburg)	Democratic	March 4, 1847 – March 3, 1849	30th	Redistricted from the4th district andre-elected in 1846. Retired.	1847–1853: Hunterdon, Sussex, and Warren
Isaac Wildrick (Blairstown)	Democratic	March 4, 1849 – March 3, 1853	31st 32nd	Elected in 1848. Re-elected in 1850. Retired.
Samuel Lilly (Lambertville)	Democratic	March 4, 1853 – March 3, 1855	33rd	Elected in 1852. Retired.	1853–1863: Hunterdon, Middlesex, Somerset, and Warren
James Bishop (New Brunswick)	Opposition	March 4, 1855 – March 3, 1857	34th	Elected in 1854. Lost re-election.
Garnett Adrain (New Brunswick)	Democratic	March 4, 1857 – March 3, 1859	35th 36th	Elected in 1856. Re-elected in 1858. Retired.
	Lecompton Democratic	March 4, 1859 – March 3, 1861
William G. Steele (Somerville)	Democratic	March 4, 1861 – March 3, 1865	37th 38th	Elected in 1860. Re-elected in 1862. Retired.
					1863–1873: Hunterdon, Middlesex, Somerset, Union, and Warren
Charles Sitgreaves (Phillipsburg)	Democratic	March 4, 1865 – March 3, 1869	39th 40th	Elected in 1864. Re-elected in 1866. Retired.
John T. Bird (Flemington)	Democratic	March 4, 1869 – March 3, 1873	41st 42nd	Elected in 1868. Re-elected in 1870. Retired.
Amos Clark Jr. (Elizabeth)	Republican	March 4, 1873 – March 3, 1875	43rd	Elected in 1872. Lost re-election.	1873–1893: Middlesex, Monmouth, and Union
Miles Ross (New Brunswick)	Democratic	March 4, 1875 – March 3, 1883	44th 45th 46th 47th	Elected in 1874. Re-elected in 1876. Re-elected in 1878. Re-elected in 1880. Lost re-election.
John Kean (Elizabeth)	Republican	March 4, 1883 – March 3, 1885	48th	Elected in 1882. Lost re-election.
Robert S. Green (Elizabeth)	Democratic	March 4, 1885 – January 17, 1887	49th	Elected in 1884. Retired torun for governor and resigned when elected.
Vacant		January 17, 1887 – March 3, 1887
John Kean (Elizabeth)	Republican	March 4, 1887 – March 3, 1889	50th	Elected in 1886. Lost re-election.
Jacob A. Geissenhainer (Freehold)	Democratic	March 4, 1889 – March 3, 1895	51st 52nd 53rd	Elected in 1888. Re-elected in 1890. Re-elected in 1892. Lost re-election.
					1893–1903: Middlesex, Monmouth, and Somerset
Benjamin F. Howell (New Brunswick)	Republican	March 4, 1895 – March 3, 1911	54th 55th 56th 57th 58th 59th 60th 61st	Elected in 1894. Re-elected in 1896. Re-elected in 1898. Re-elected in 1900. Re-elected in 1902. Re-elected in 1904. Re-elected in 1906. Re-elected in 1908. Lost re-election.
					1903–1933: Middlesex, Monmouth, and Ocean
Thomas J. Scully (South Amboy)	Democratic	March 4, 1911 – March 3, 1921	62nd 63rd 64th 65th 66th	Elected in 1910. Re-elected in 1912. Re-elected in 1914. Re-elected in 1916. Re-elected in 1918. Retired.
T. Frank Appleby (Asbury Park)	Republican	March 4, 1921 – March 3, 1923	67th	Elected in 1920. Lost re-election.
Elmer H. Geran (Matawan)	Democratic	March 4, 1923 – March 3, 1925	68th	Elected in 1922. Lost re-election.
Vacant		March 3, 1925 – November 3, 1925	69th	Member-elect (and former member)T. Frank Appleby died December 15, 1924.
Stewart H. Appleby (Asbury Park)	Republican	November 3, 1925 – March 3, 1927		Elected to finish his father's term. Retired.
Harold G. Hoffman (South Amboy)	Republican	March 4, 1927 – March 3, 1931	70th 71st	Elected in 1926. Re-elected in 1928. Retired to becomeMotor Vehicle Commissioner of New Jersey.
William H. Sutphin (Matawan)	Democratic	March 4, 1931 – January 3, 1943	72nd 73rd 74th 75th 76th 77th	Elected in 1930. Re-elected in 1932. Re-elected in 1934. Re-elected in 1936. Re-elected in 1938. Re-elected in 1940. Lost re-election.
					1933–1943: Monmouth, Ocean, and Parts of Middlesex (south of Raritan River)[citation needed]
James C. Auchincloss (Rumson)	Republican	January 3, 1943 – January 3, 1965	78th 79th 80th 81st 82nd 83rd 84th 85th 86th 87th 88th	Elected in 1942. Re-elected in 1944. Re-elected in 1946. Re-elected in 1948. Re-elected in 1950. Re-elected in 1952. Re-elected in 1954. Re-elected in 1956. Re-elected in 1958. Re-elected in 1960. Re-elected in 1962. Retired.	1943–1963: [data missing]
					1963–1965 Monmouth and Ocean[a]
James J. Howard (Spring Lake Heights)	Democratic	January 3, 1965 – March 25, 1988	89th 90th 91st 92nd 93rd 94th 95th 96th 97th 98th 99th 100th	Elected in 1964. Re-elected in 1966. Re-elected in 1968. Re-elected in 1970. Re-elected in 1972. Re-elected in 1974. Re-elected in 1976. Re-elected in 1978. Re-elected in 1980. Re-elected in 1982. Re-elected in 1984. Re-elected in 1986. Died.
					1967–1969: Monmouth, Parts of Middlesex (Sayreville,South Amboy, andOld Bridge Township), and Parts of Ocean (Jackson Township,Lakewood Township, andPlumsted Township)
					1969–1973: Monmouth, Parts of Middlesex (Old Bridge Township), and Parts of Ocean (Jackson Township,Lakewood Township, andPlumsted Township)
					1973–1975: [data missing]
					1975–1983: Monmouth (excludingAberdeen Township,Allentown,Roosevelt, andUpper Freehold Township) and parts of Ocean (Lakewood Township,Point Pleasant, andPoint Pleasant Beach)
					1983–?: Parts of Middlesex, Monmouth, and Ocean
					?–1993: Coastal areas of Monmouth and Ocean
Vacant		March 25, 1988 – November 8, 1988	100th
Frank Pallone (Long Branch)	Democratic	November 8, 1988 – January 3, 1993	100th 101st 102nd	Elected to finish Howard's term. Also elected to the next full term. Re-elected in 1990. Redistricted to the6th district.
Jim Saxton (Mount Holly)	Republican	January 3, 1993 – January 3, 2009	103rd 104th 105th 106th 107th 108th 109th 110th	Redistricted from the13th district andre-elected in 1992. Elected in 1994. Re-elected in 1996. Re-elected in 1998. Re-elected in 2000. Re-elected in 2002. Re-elected in 2004. Re-elected in 2006. Retired.	1993–2003: Parts of Camden, Burlington, and Ocean
					2003–2013: Parts of Camden, Burlington, and Ocean
John Adler (Cherry Hill)	Democratic	January 3, 2009 – January 3, 2011	111th	Elected in 2008. Lost re-election.
Jon Runyan (Mount Laurel)	Republican	January 3, 2011 – January 3, 2015	112th 113th	Elected in 2010. Re-elected in 2012. Retired.
					2013–2023: Parts of Burlington and Ocean
Tom MacArthur (Toms River)	Republican	January 3, 2015 – January 3, 2019	114th 115th	Elected in 2014. Re-elected in 2016. Lost re-election.
Andy Kim (Moorestown)	Democratic	January 3, 2019 – December 8, 2024	116th 117th 118th	Elected in 2018. Re-elected in 2020. Re-elected in 2022. Resigned after beingelected and appointed as U.S. Senator.
					2023–present: Parts of Burlington, Mercer, and Monmouth
Vacant		December 8, 2024 – January 3, 2025	118th
Herb Conaway (Delran Township)	Democratic	January 3, 2025 – present	119th	Elected in 2024.

• Martis, Kenneth C. (1989).The Historical Atlas of Political Parties in the United States Congress. New York: Macmillan Publishing Company.
• Martis, Kenneth C. (1982).The Historical Atlas of United States Congressional Districts. New York: Macmillan Publishing Company.
• Congressional Biographical Directory of the United States 1774–presentArchived April 23, 2010, at theWayback Machine

• Ballotpedia - New Jersey's 3rd Congressional District

• Congressional districts of New Jersey
• Burlington County, New Jersey
• Camden County, New Jersey
• Ocean County, New Jersey
• Constituencies established in 1799
• 1799 establishments in New Jersey
• Constituencies disestablished in 1801
• 1801 disestablishments in New Jersey
• Constituencies established in 1813
• 1813 establishments in New Jersey
• Constituencies disestablished in 1815
• 1815 disestablishments in New Jersey
• Constituencies established in 1843
• 1843 establishments in New Jersey

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