Zip Code 06778 — Northfield, CT

ZIP Code 06778 is associated with Northfield, CT, in Northwest Hills County. The listed population estimate is 1,574; estimated density is 109.6 people per square mile. Among records with population estimates, it ranks #19 of 34 in Northwest Hills County and #241 of 285 in CT.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (41.714690, -73.104590)

Data MetricLocal Statistic
Postal / Zip Code06778
Primary CityNorthfield
State / ProvinceCT
CountyNorthwest Hills
Total Population1,574
Population Density109.6 people/sq mi
TimezoneAmerica/New_York

How 06778 Compares

MetricZIP 06778Northwest Hills County recordsCT records
Population estimate1,574113,256 (sum)3,624,508 (sum)
Population Density109.6 /sq mi----
County population rank#19 of 34----
State population rank#241 of 285----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in CT

ZIP CodeCityDistancePopulation estimate
ZIP 06787Thomaston3.2 mi7,509
ZIP 06791Harwinton3.7 mi5,602
ZIP 06782Plymouth5.1 mi1,978
ZIP 06763Morris5.6 mi2,151
ZIP 06786Terryville5.6 mi9,768

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 →