Home > NY > Nassau County > Uniondale > Zip 11556

Zip Code 11556 — Uniondale, NY

11556 is a ZIP Code associated with Uniondale, NY, located within Nassau. The postal region supports an estimated population of Data Pending residents across Data Pending housing units, with a population density of Data Pending people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (40.719970, -73.583270)

Data MetricLocal Statistic
Postal / Zip Code11556
Primary CityUniondale
State / ProvinceNY
CountyNassau
Total PopulationData Pending
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population DensityData Pending people/sq mi
TimezoneAmerica/New_York

How 11556 Compares

MetricZIP 11556Nassau CountyNY State Average
PopulationData Pending1,369,35919,771,902
Median IncomeData PendingN/AN/A
Population DensityData Pending /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 11549Hempstead0.9 mi2,359N/A
Zip 11553Uniondale1.1 mi27,875N/A
Zip 11554East Meadow1.2 mi36,821N/A
Zip 11550Hempstead2.3 mi60,960N/A
Zip 11590Westbury2.5 mi47,599N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →