Home > CT > Lower Connecticut River Valley County > Killingworth > Zip 06419

Zip Code 06419 — Killingworth, CT

06419 is a ZIP Code associated with Killingworth, CT, located within Lower Connecticut River Valley. The postal region supports an estimated population of 6,240 residents across Data Pending housing units, with a population density of 68.2 people per square mile.

WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (41.379230, -72.578470)

Data Metric	Local Statistic
Postal / Zip Code	06419
Primary City	Killingworth
State / Province	CT
County	Lower Connecticut River Valley
Total Population	6,240
Median Household Income	Data Pending
Total Housing Units	Data Pending
Population Density	68.2 people/sq mi
Timezone	America/New_York

How 06419 Compares

Metric	ZIP 06419	Lower Connecticut River Valley County	CT State Average
Population	6,240	175,346	3,624,508
Median Income	Data Pending	N/A	N/A
Population Density	68.2 /sq mi	--	--

Nearby ZIP Codes

ZIP Code	City	Distance	Population	Median Income
Zip 06443	Madison	3.7 mi	17,657	N/A
Zip 06412	Chester	5.3 mi	3,825	N/A
Zip 06441	Higganum	6.0 mi	5,348	N/A
Zip 06417	Deep River	6.1 mi	4,458	N/A
Zip 06413	Clinton	6.1 mi	13,377	N/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 →