Nassau County is comprised of two (2) cities, three (3) towns, sixty-four (64) incorporated villages, and more than sixty (60) unincorporated hamlets. Each of these local municipalities have established their own respective zonings and building codes. A hamlet is an unincorporated village which is a subdivision of the town or city in which it is located and is therefore subject to that town or city’s zoning and building codes

The following are the web links to each of the municipalities located within Nassau County 

Nassau County and Wikipedia page