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ZIP Code Database - Facts & Stats

Data Last Updated: May 1, 2022

ZIP Codes for City of Killingworth, CT

Killingworth, CT Covers 1 ZIP Code

ZIP CodeTypeCountyPopulationArea Code(s)
ZIP Code 06419StandardMiddlesex6,525860 / 959

Timezone(s):Eastern (GMT -05:00)
Population:6,525 (More Details)
Male Population:3,216
Female Population:3,309
Median Age:47
ZIP Codes:1
Area Codes:2
Total Area:439 square miles (county)
Land Area:369 square miles (county)
Water Area:70 square miles (county)

Killingworth, CT Demographic Information *

There is no Census data for the city of KILLINGWORTH, CT. We have pulled information for the ZIP Code 06419 instead.
Total population6,525
Male population3,216
Female population3,309
Median age (years)46.5
White Population6,293
Black Population46
Indian Population13
Asian Population74
Hawaiian Population4
Hispanic Population141
Median age (Male)46.3
Median age (Female)46.8
Total households2,474
Family households (families)1,913
Average household size2.64
Average family size2.99
Total housing units2,598
* 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],