ZIP Code 06388

06388 is one of Connecticut's ZIP codes, delivering to addresses in West Mystic, Southeastern Connecticut Planning Region.

City: West Mystic
Planning region: Southeastern Connecticut Planning Region
State: Connecticut
Prefix: 063xx

Where this code sits

06388 is part of the 063xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to West Mystic.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 06388 delivers to without sharing its boundary.

ZIP codes nearest 06388

The ZIP codes whose reference points sit closest to 06388.
ZIP code	Distance	Delivers to
ZIP code 06355	1.2 mi	Mystic, CT
ZIP code 06372	3.4 mi	Old Mystic, CT
ZIP code 06378	3.5 mi	Stonington, CT
ZIP code 06340	4.3 mi	Groton, CT
ZIP code 06390	5.9 mi	Fishers Island, NY
ZIP code 06339	6.7 mi	Ledyard, CT
ZIP code 06320	6.7 mi	New London, CT
ZIP code 06379	7.0 mi	Pawcatuck, 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 06388, plotted from its record coordinates.

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

Scope ZIP code 06388. 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.