Uniondale, NY ZIP Codes
Uniondale, New York has 5 ZIP codes: 4 for street addresses (, , and ) and 1 for a single organization.
Your street decides which one you use.
Which Uniondale ZIP code is my address in?
Street ranges from the Census Bureau, 2026. PO box and organization ZIP codes are not found by street. A new street may be missing: address not found?
Uniondale ZIP code map
Tap or point to an area to see its ZIP code.Full-size map
11555 has no area on the map: it is a PO box or single-organization ZIP code. Dashed line: the Uniondale Census outline.
Map: Census Bureau ZIP Code Tabulation Areas (2020) and place limits (2024).
All Uniondale ZIP codes by type
| ZIP | Type and post office or station |
|---|---|
| 11530 | street delivery; mail may be addressed to Garden City Garden City |
| 11553 | street delivery Uniondale |
| 11555 | one organization Uniondale |
| 11556 | street delivery Uniondale |
| 11590 | street delivery; mail may be addressed to Westbury Westbury |
ZIP codes from nearby towns that reach into Uniondale
- 11549, mailing town Hempstead, covers 4 percent of Uniondale
Why your mail may say Uniondale when you live outside it
Uniondale ZIP codes also cover Garden City, Westbury and Salisbury, so a letter addressed to Uniondale can go to a home outside the town.
The reverse happens too: parts of Uniondale use 11549, which mails under a neighboring town's name.
A ZIP code does not set your city, school district or tax. Nassau County property records show which city you are in.
Uniondale ZIP code questions
What is the main ZIP code for Uniondale?
11553, the ZIP code of the main Uniondale post office at 1000 Front St.
What county is Uniondale in?
Nassau County.
ZIP codes for towns near Uniondale
More towns near Uniondale: Hicksville, Town of Hempstead, Elmont, Oceanside, Valley Stream, Town of Oyster Bay, North Hempstead, Long Beach, West Babylon.
Sources and last checked
USPS ZIP Locale Detail (October 1, 2026), GeoNames (CC BY 4.0), U.S. Census Bureau, HUD-USPS crosswalk.
Checked October 20, 2026. Sources · How we build our lists · Corrections