Zip Code 06791 — Harwinton, CT

ZIP Code 06791 is associated with Harwinton, CT, in Northwest Hills County. The listed population estimate is 5,602; estimated density is 70.1 people per square mile. Among records with population estimates, it ranks #5 of 34 in Northwest Hills County and #172 of 285 in CT.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (41.755090, -73.058380)

Data MetricLocal Statistic
Postal / Zip Code06791
Primary CityHarwinton
State / ProvinceCT
CountyNorthwest Hills
Total Population5,602
Population Density70.1 people/sq mi
TimezoneAmerica/New_York

How 06791 Compares

MetricZIP 06791Northwest Hills County recordsCT records
Population estimate5,602113,256 (sum)3,624,508 (sum)
Population Density70.1 /sq mi----
County population rank#5 of 34----
State population rank#172 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 06778Northfield3.7 mi1,574
ZIP 06013Burlington5.1 mi9,680
ZIP 06787Thomaston6.0 mi7,509
ZIP 06786Terryville6.3 mi9,768
ZIP 06057New Hartford6.7 mi6,363

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 →