For questions such as yours, you may want to contact the Westbury Memorial Public Library (the library can suggest which local newspaper might have this information and other possible sources of information):
Westbury Memorial Public Library
445 Jefferson Street
Westbury, NY 11590
Westbury is one of those many villages and hamlets on Long Island where most of the places that have the community name as part of their mailing address are not in the community.
The pertinent geography ...
Westbury is a village (incorporated in 1932) in the southeast part of the Town of North Hempstead, in the central part of Nassau County, along the North Hempstead/Oyster Bay and the North Hempstead/Hempstead town line. There are 30 villages (municipal corporations) and 18 hamlets (unincorporated areas) all or partly in the Town of North Hempstead. There are 2 cities and 3 towns in Nassau County. (I'm including after my name a NYS Geographic Glossary with the NYS definitions of county, city, town, village, hamlet and postal zone.)
Beginning on the north and moving in a clockwise direction, the Village of Westbury in the Town of North Hempstead is bordered on the north by the Village of Old Westbury; on the east by the Hamlet of Jericho in the Town Oyster Bay (the North Hempstead/Oyster Bay town line) and the Hamlet of New Cassel; on the south by the Hamlet of East Meadow and the Hamlet of East Garden City in the Town of Hempstead (the North Hempstead/Hempstead town line); and on the west by the Hamlet of Carle Place and the Village of Mineola.
For a map of the Village of Westbury:http://upload.wikimedia.org/wikipedia/en/8/8e/Westbury-map.g...
And, as occurs in all but one of Nassau County's 136 communities (2 cities, 64 villages and 70 hamlets), the Village of Westbury has a different border than does the "Westbury, NY 11590" ZIP Code postal zone (i.e., a place can have a "Westbury, NY 11590" mailing address and not be in the Village of Westbury and a place can have other than a "Westbury, NY 11590" mailing address and be in the Village of Westbury).
...........Village of Westbury.................1,511
...........Westbury, NY 11590..............4,302
...............part in North Hempstead....2,505
...............part in Hempstead.............1,503
...............part in Oyster Bay................294
Thus, about 2 out of every 3 places with a "Westbury, NY 11590" mailing address are NOT in the Village of Westbury and 3 out of every 8 are NOT even in the Town of North Hempstead.
Places that have a "Westbury, NY 11590" mailing address that are not in the Village of Westbury are in the Hamlet of Jericho and the Hamlet of Hicksville in the Town of Oyster Bay; the Hamlet of Carle Place and the Hamlet of New Cassel in the Town of North Hempstead; and, the Hamlet of Salisbury, the Hamlet of East Garden City and the Hamlet of East Meadow in the Town of Hempstead; and, at the same time, there are places in the Village of Westbury with a "Carle Place, NY 11514" mailing address.
For those who have their copy of the 2010 or earlier edition of the Long Island population Survey or have already downloaded the report from the Long Island Power Authority web site (eMail me directly if you need instructions on how to access and download the report), you'll find the Village of Westbury (incorporated in 1932) in the Town of North Hempstead, Nassau County on pages 5 & 6 (map) and 7 (population estimate).
I hope this information is useful or, at least, interesting.
Great Falls, MT & Jericho, NY
. Cities, Towns, Villages, Hamlets and Postal Zones in New York State
New York State is divided into counties.
A county is a municipal corporation, a subdivision of the state, created to perform state functions; a "regional" government. All counties are divided into cities, towns and Indian reservations.
A city is a unique governmental entity with its own special charter. Cities are not sub-divided, except into neighborhoods, which are informal geographic areas.
A town is a municipal corporation and encompasses all territory within the state except that within cities or Indian reservations. Towns can be sub-divided into villages and hamlets.
A village is a general purpose municipal corporation formed voluntarily by the residents of an area in one or more towns to provide themselves with municipal services. The pattern of village organization is similar to those of a city. A village is divided into neighborhoods, which are informal geographic areas.
A hamlet is an unincorporated area in one or more towns that is governed at-large by the town(s) it is in. A hamlet is divided into neighborhoods, which are informal geographic areas.
Postal Zone "City" and "Town"
A postal zone "City" and "Town" is an administrative district established by the U.S. Postal Service to deliver the mail. Postal zone "City" and "Town" may not (but are encouraged to) conform to municipal or community borders. Thus, postal zone location does not always determine city, village or hamlet location.
Please be aware: In many areas of New York State, the problem of non-conforming postal zones leads to a situation where the majority of places have a different community name in their mailing address than the community where that place is actually located.