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ZIP Code Database - Facts & Stats

Data Last Updated: May 1, 2022

ZIP Codes for City of Hackettstown, NJ

Hackettstown, NJ Covers 1 ZIP Code

ZIP CodeTypeCountyPopulationArea Code(s)
ZIP Code 07840StandardWarren29,849908

Timezone(s):Eastern (GMT -05:00)
Counties:WARREN, NJ
Population:9,724 (More Details)
Male Population:4,653
Female Population:5,071
Median Age:37
ZIP Codes:1
Area Codes:1
Total Area:363 square miles (county)
Land Area:357 square miles (county)
Water Area:6 square miles (county)

Hackettstown, NJ Demographic Information *

Total population9,724
Male population4,653
Female population5,071
Median age (years)37.3
White Population8,273
Black Population239
Indian Population23
Asian Population483
Hawaiian Population5
Hispanic Population1,474
Median age (Male)36.4
Median age (Female)38.3
Total households3,575
Family households (families)2,255
Average household size2.48
Average family size3.09
Total housing units3,755
* Demographic data is based on 2010 Census. Products


  1. U.S. Postal Service [Last Updated: 5/1/2022],
  2. Internal Data Creation [Last Updated: 5/1/2022],
  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],