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ZIP Code Database - Facts & Stats

Data Last Updated: January 1, 2023

ZIP Codes for City of Seaford, NY

Seaford, NY Covers 1 ZIP Code

ZIP CodeTypeCountyPopulation
ZIP Code 11783StandardNassau21,288

Timezone(s):Eastern (GMT -05:00)
Counties:NASSAU, NY
Population:15,294 (More Details)
Male Population:7,445
Female Population:7,849
Median Age:43
ZIP Codes:1
Area Codes:2
Total Area:453 square miles (county)
Land Area:285 square miles (county)
Water Area:169 square miles (county)

Seaford, NY Demographic Information *

Total population15,294
Male population7,445
Female population7,849
Median age (years)42.5
White Population14,593
Black Population74
Indian Population13
Asian Population341
Hawaiian Population0
Hispanic Population761
Median age (Male)41.5
Median age (Female)43.4
Total households5,266
Family households (families)4,140
Average household size2.89
Average family size3.3
Total housing units5,395
* Demographic data is based on 2010 Census. Products


  1. U.S. Postal Service [Last Updated: 1/1/2023],
  2. Internal Data Creation [Last Updated: 1/1/2023],
  3. U.S. Geological Survey [Updated as needed],
  4. U.S. Census [Updated Yearly],
  5. U.S. Census 2010 [Decennial] [Last Updated: 1/1/2010],