Northfield, CT 06778 ZIP Code Profile

Related Place Profiles:
Northfield, CT | Thomaston, CT

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ZIP Code 06778: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Northfield, CT 06778

Acceptable Alternative
Thomaston, CT 06778

  • ZIP Code Type: STANDARD
  • County: Litchfield County
  • Centroid: Latitude 41.703, Longitude -73.119
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes
  • Businesses Addresses: 5
  • PO Box Addresses: 0
  • Residential Addresses: 496
    • Multi-Family Addresses: 0
    • Single Family Addresses: 496

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.


06778 ZIP Code Map

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Northfield, CT 06778 Data & Demographics (As of July 1, 2017)


Total Population 1,308
Daytime Population: Workers 119
Daytime Population: Residents 490
Total Daytime Population (TDP) 609
Ratio TDP/Total Population1 0.47
Population in Households 1,300
Population in Familes 1,139
Population in Group Qrtrs 8
Population Density2 247
Diversity Index3 12


Median Household Income $103,887
Average Household Income $116,635
Per Capita Income $43,412


Total Housing Units 514 (100%)
Owner Occupied HU 420 (81.7%)
Renter Occupied HU 65 (12.6%)
Vacant Housing Units 29 ( 5.6%)
Median Home Value $308,046
Average Home Value $369,286


Total Households 485
Average Household Size 2.68
Family Households 371
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 -0.05% -0.42%
Households -0.06% -0.46%
Families -0.18% -0.49%
Median Household Income   1.73%
Per Capita Income   3.68%

Northfield, CT 06778 - Peer Comparisons by Rank and Percentile

The table below compares 06778 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 # 245 11th
Population Density # 208 25th
Diversity Index # 258 7th
Median Household Income # 58 79th
Per Capita Income # 116 58th

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

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