Killingworth, CT 06419 ZIP Code Profile

Related Place Profiles:
Deep River, CT | Killingworth, CT

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ZIP Code 06419: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Killingworth, CT 06419

Acceptable Alternative
Deep River, CT 06419

  • ZIP Code Type: STANDARD
  • County: Middlesex County
  • Centroid: Latitude 41.376, Longitude -72.581
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes
  • Businesses Addresses: 115
  • PO Box Addresses: 88
  • Residential Addresses: 2,504
    • Multi-Family Addresses: 0
    • Single Family Addresses: 2,504

The ZIP Code maps and database are updated 4 times per year.
Database updated: February 1, 2018, Maps updated: February 1, 2018.

EXTREMELY LOCAL Demographic Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting demographic data.


06419 ZIP Code Map

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Killingworth, CT 06419 Data & Demographics (As of July 1, 2017)


Total Population 6,473
Daytime Population: Workers 913
Daytime Population: Residents 2,979
Total Daytime Population (TDP) 3,892
Ratio TDP/Total Population1 0.60
Population in Households 6,473
Population in Familes 5,653
Population in Group Qrtrs 0
Population Density2 181
Diversity Index3 15


Median Household Income $111,950
Average Household Income $150,793
Per Capita Income $56,748


Total Housing Units 2,617 (100%)
Owner Occupied HU 2,294 (87.7%)
Renter Occupied HU 142 ( 5.4%)
Vacant Housing Units 181 ( 6.9%)
Median Home Value $411,808
Average Home Value $428,738


Total Households 2,436
Average Household Size 2.66
Family Households 1,873
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population -0.11% -0.14%
Households -0.21% -0.21%
Families -0.29% -0.27%
Median Household Income   1.57%
Per Capita Income   2.21%

Killingworth, CT 06419 - Peer Comparisons by Rank and Percentile

The table below compares 06419 to the other 275 ZIP Codes in Connecticut by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 167 40th
Population Density # 223 19th
Diversity Index # 236 15th
Median Household Income # 38 87th
Per Capita Income # 35 88th

Additional comparisons and rankings can be made with a VERY EASY TO USE Connecticut Census Data Comparison Tool.

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