ZIP Code 06340

ZIP code 06340 is classified by USPS as a standard delivery area and covers roughly 59.3 square miles in Groton, New London County, Connecticut. The area is home to 31,242 residents, producing a population density of 527 people per square mile, and falls within the New York time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 06340 against Connecticut and the nation.

On the economic side, the median household income for ZIP 06340 sits at $81,792 (28% below the Connecticut average), while per-capita income is $47,211. The poverty rate stands at 12.7% and the unemployment rate at 4.6%. On housing, the median home value is $294,700 (32% below the state average) with median rent at $1,599 per month, and 44.5% of occupied units are owner-occupied, a direct signal of whether 06340 behaves more like a homeowner neighborhood or a renter-heavy ZIP.

Education and household profile round out the picture: 39.2% of adults hold a bachelor's degree or higher, the median age is 33.7, and the average commute is 18 minutes. We also surface 10 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing New London County, so you can benchmark 06340 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →