New York's 5th State Assembly district is one of the 150 districts in the New York State Assembly. It has been represented by Republican Assemblyman Douglas M. Smith since 2018.
District 5 is in Suffolk County, and includes portions of the towns of Brookhaven and Islip. Most of the hamlets of Centereach, Ronkonkoma and Holbrook lie within the district, as well as portions of Islandia, North Patchogue and Selden.
The district overlaps New York's 1st and 2nd congressional districts, and the 3rd and 8th districts of the New York State Senate.
District 5 is in Suffolk County, and includes portions of the towns of Brookhaven and Islip.