The general consensus places Hempstead in the
bad column.
It is important to know that there are 3 "Hempsteads" (from smallest to largest, in order of acreage):
1. There is the Village of Hempstead (2,327 acres);
2. There is the "Hempstead, NY 11550" ZIP Code postal zone (2,652 acres), and it includes the Village of Hempstead and parts of 2 other adjacent hamlets within its service area; and,
3. There is the Town of Hempstead (89,688 acres), and it includes 22 villages and 36 hamlets as well as the "Hempstead, NY 11550" ZIP Code postal zone and all or parts of 34 other ZIP Code postal zones, within its borders.
For those who may not be familiar with Hempstead:
Hempstead is a village (incorporated in 1853) in the north-center section of the Town of Hempstead, in the central part of Nassau County.
Beginning on the north and moving in a clockwise direction, the Village of Hempstead in the Town of Hempstead is bordered on the north by the Village of Garden City and the Hamlet of East Garden City; on the east by the Hamlet of East Garden City and the Hamlet of Uniondale; on the south by the Hamlet of Baldwin and the Hamlet of South Hempstead; and, on the west by the Hamlet of West Hempstead.
http://upload.wikimedia.org/wikipedia/en/0/0b/Hempstead-village-ny-map.gif (broken link)
The Village of Hempstead has a different border than does the "Hempstead, NY 11550" ZIP Code postal zone (i.e., a place can have a "Hempstead, NY 11550" mailing address and not be in the Village of Hempstead): places that have a "Hempstead, NY 11550" mailing address that are not in the Village of Hempstead are in the Hamlet of East Garden City and the Hamlet of South Hempstead.
For a good set of town-by-town maps showing all the villages and hamlets in each of LI's 13 towns (3 in Nassau County and 10 in Suffolk County):
Excellent Long Island Geographic Resource