New York's 4th congressional district is a congressional district for the United States House of Representatives in central and southern Nassau County.

It is represented by Democrat Laura Gillen.

NY-04 is the second-wealthiest congressional district in New York, and among the wealthiest nationally.

[4] The district includes the communities of Elmont, Baldwin, Bellmore, East Rockaway, East Meadow, Five Towns, Lynbrook, Floral Park, Franklin Square, Garden City, Garden City Park, Hempstead, Atlantic Beach, Long Beach, Malverne, Freeport, Merrick, Carle Place, New Hyde Park, Oceanside, Rockville Centre, Roosevelt, Seaford, Uniondale, Valley Stream, Wantagh, West Hempstead, and Westbury.

Certain parties invariably endorse either the Republican or Democratic candidate for every office, hence the state electoral results contain both the party votes, and the final candidate votes (Listed as "Recap").