Islip, Oakdale, West Sayville, Sayville, Bellport, Bayport, Patchogue and Brookhaven Hamlet Please visit the survey for tips and suggestions on how to document your house and community. Islip Islip and Great River are two of the oldest communities in the estuary, originally inhabited by the Secatogues, Pentaquit and Connetquot Native American tribes. In the 1600s William […]