The Third Legislative District of Suffolk County is located in the south-central portion of the Town of Brookhaven. The District serves the Incorporated Village of Bellport and the hamlets of:
Bellport
Brookhaven
Mastic Beach
Mastic
Moriches
Shirley
Smith Point
Yaphank
Also covered in the District are portions of Center Moriches, Medford, Middle Island and Ridge. The area consists of forty-three (43) election districts (ED.’s) with approximately 82,000 residents and 43,000 registered voters.