The Township of Islip is located on the South Shore of Long Island. It's in central Suffolk County bordering the Town of Babyon to the west, the Town Smithtown to the north, and the Town of Brookhaven to the east. Like many townships on eastern Long island it is named for a village or town in England because it is the English that first settled this part of New York.

The town is on the Great South Bay and has wonderful ocean beaches, and historic villages and mansions. Fishing and shipping were key to the livelihoods of people in this area for much of the towns history. Clams and oysters were especially significant. One of the most well-known businesses in this industry was the Blue Point Oyster Company. The current economy benefits from the tourism associated with the Great South bay and Fire island.

The Township of Islip includes the villages of Brightwaters, Dunewood, Islandia, Ocean Beach, and Saltaire, and the unincorporated hamlets of bay SHore, Bayport, Baywood, Bohemia, Brentwood, Central Islip, East Islip, Great River, Hauppauge, Holbrook, Holtsville, Islip, Islip Terrace, Oakdale, Ronkonkoma, Sayville, West Bay Shore, West islip, and West Sayville.

The Town of Islip government website has useful information for town deparments, community events, and more.

Selected major services and town departments:
Town of Islip Department of Economic Development
Town of Islip Department of Environmental Control
Town of Islip Hauppauge Landfill
Town of Islip Multipurpose Recycling Facility
Town of Islip Office of the Supervisor
Town of Islip Parking Violations
Town of Islip Department of Planning Development
Town of Islip Department of Public Works
Town of Islip Receiver of Taxes
Town of Islip Senior Citizen Services
Town of Islip Clerk
Town of Islip Youth Bureau