Home > CT > Southeastern Connecticut County > New London > Zip 06320

Zip Code 06320 — New London, CT

ZIP Code 06320 is associated with New London, CT, in Southeastern Connecticut County. The listed population estimate is 27,703; estimated density is 1,895.5 people per square mile. Among records with population estimates, it ranks #3 of 32 in Southeastern Connecticut County and #39 of 285 in CT.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (41.350260, -72.102250)

Data MetricLocal Statistic
Postal / Zip Code06320
Primary CityNew London
State / ProvinceCT
CountySoutheastern Connecticut
Total Population27,703
Population Density1,895.5 people/sq mi
TimezoneAmerica/New_York

How 06320 Compares

MetricZIP 06320Southeastern Connecticut County recordsCT records
Population estimate27,703281,371 (sum)3,624,508 (sum)
Population Density1,895.5 /sq mi----
County population rank#3 of 32----
State population rank#39 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 06385Waterford2.8 mi15,966
ZIP 06340Groton3.0 mi29,863
ZIP 06375Quaker Hill4.0 mi3,670
ZIP 06335Gales Ferry5.8 mi6,307
ZIP 06357Niantic6.1 mi11,332

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 →