11556 ZIP Code — Uniondale, NY
Nassau County, New York
ZIP code 11556 is located in Uniondale, New York, within Nassau County. It covers approximately 0.07 square miles and serves a population of 0 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 516.
0
population
0.07
sq mi land
Standard
ZIP type
Eastern (ET)
timezone
11556 ZIP code map
Cities in ZIP code 11556
Below are the cities the US Postal Service accepts for ZIP code 11556. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Uniondale | Preferred |
Nearby ZIP codes
11555 Uniondale (0 mi)
11553 Uniondale (0.5 mi)
11549 Hempstead (1.3 mi)
11575 Roosevelt (1.4 mi)
11550 Hempstead (1.4 mi)
11599 Garden City (2.4 mi)
11554 East Meadow (2.4 mi)
11530 Garden City (2.9 mi)
11552 West Hempstead (3 mi)
11570 Rockville Centre (3.3 mi)
11566 Merrick (3.3 mi)
11510 Baldwin (3.3 mi)
Demographics
updated 05/2026
| Population | |
|---|---|
| Total population | 0 |
| Population density | 0 / sq mi |
| State FIPS | 36 |
| County FIPS | 059 |
| Geography | |
|---|---|
| Land area | 0.07 sq mi |
| Water area | 0.00 sq mi |
| Latitude | 40.7004 |
| Longitude | -73.5934 |
| Timezone | Eastern (ET) |
| Area code | 516 |