New Jersey's 3rd congressional district is represented by Democrat Andy Kim of Moorestown who has served in Congress since 2019.

Andrew Kim is an American politician and former diplomat who has served as the U.S. representative from New Jersey's 3rd congressional district since 2019. The district encompasses Philadelphia's eastern suburbs along southern and central New Jersey. A member of the Democratic Party, he worked in the U.S. State Department prior to his election to Congress in 2018.