A map of the Hamlet of Ronkonkoma in the Town of Islip, Suffolk County:
The Hamlet of Ronkonkoma has a different border than does the "Ronkonkoma, NY 11779" ZIP Code postal zone (i.e., a place can have a "Ronkonkoma, NY 11779" mailing address and not be in the Hamlet of Ronkonkoma and a place can have other than a "Ronkonkoma, NY 11779" mailing address and be in the Hamlet of Ronkonkoma): places that have a "Ronkonkoma, NY 11779" mailing address that are not in the Hamlet of Ronkonkoma are in the Hamlet of Lake Ronkonkoma in the Towns of Smithtown and Brookhaven, the Hamlet of Bohemia and the Hamlet of Holtsville; and, at the same time, there are places in the Hamlet of Ronkonkoma with a "Central Islip, NY 11722", "Holbrook, NY 11741" and "Bohemia, NY 11716" mailing address.