Zip Code Database List
Account Login
Find ZIP+4 of Address

Find the ZIP Code, County, and +4 of any U.S. Address

FREE ZIP Code Finder

Find info on any U.S. ZIP Code

Other FREE Lookups

Lookup ZIP Code of any City, State, County or Area Code

FREE Radius Search

Find all ZIP Codes

FREE Distance Calc

Calculate the distance between two U.S. or Canadian ZIP codes.

ZIP Code Database - Facts & Stats

ZIP Codes for City of Holtsville, NY

Holtsville, NY Covers 3 ZIP Codes

ZIP CodeTypeCountyPopulationArea Code(s)
ZIP Code 00501UniqueSuffolk0631
ZIP Code 00544UniqueSuffolk0631
ZIP Code 11742StandardSuffolk13,261631 / 516

Timezone(s):Eastern (GMT -05:00)
Counties:SUFFOLK, NY
Population:19,714 (More Details)
Male Population:9,524
Female Population:10,190
Median Age:39
ZIP Codes:3
Area Codes:2
Total Area:2,373 square miles (county)
Land Area:912 square miles (county)
Water Area:1,461 square miles (county)

Holtsville, NY Demographic Information *

Total population19,714
Male population9,524
Female population10,190
Median age (years)39.3
White Population17,782
Black Population364
Indian Population32
Asian Population865
Hawaiian Population5
Hispanic Population1,990
Median age (Male)38.5
Median age (Female)40
Total households6,725
Family households (families)5,147
Average household size2.92
Average family size3.36
Total housing units6,929
* Demographic data is based on 2010 Census.

Holtsville, NY Other Information

  • Located in SUFFOLK County, New York
  • Holtsville, NY is also known as:

155 Cities within 30 miles of Holtsville, NY Products