ZIP Code 06371

06371 is one of Connecticut's ZIP codes, delivering to addresses in Old Lyme, Lower Connecticut River Valley Planning Region.

City: Old Lyme
Planning region: Lower Connecticut River Valley Planning Region
State: Connecticut
Prefix: 063xx

Where this code sits

06371 is part of the 063xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Old Lyme.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 06371 delivers to without sharing its boundary.

ZIP codes nearest 06371

The ZIP codes whose reference points sit closest to 06371.
ZIP code	Distance	Delivers to
ZIP code 06376	3.5 mi	South Lyme, CT
ZIP code 06333	4.5 mi	East Lyme, CT
ZIP code 06426	4.8 mi	Essex, CT
ZIP code 06475	5.0 mi	Old Saybrook, CT
ZIP code 06357	5.1 mi	Niantic, CT
ZIP code 06409	5.7 mi	Centerbrook, CT
ZIP code 06442	6.9 mi	Ivoryton, CT
ZIP code 06417	7.8 mi	Deep River, CT

Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.

Each point is the reference point for 06371, plotted from its record coordinates.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Scope ZIP code 06371. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.