ZIP Code 06338

06338 is one of Connecticut's ZIP codes, delivering to addresses in Mashantucket, Southeastern Connecticut Planning Region.

City: Mashantucket
Planning region: Southeastern Connecticut Planning Region
State: Connecticut
Prefix: 063xx

Where this code sits

06338 is part of the 063xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Mashantucket.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 06338 delivers to without sharing its boundary.

ZIP codes nearest 06338

The ZIP codes whose reference points sit closest to 06338.
ZIP code	Distance	Delivers to
ZIP code 06339	3.2 mi	Ledyard, CT
ZIP code 06365	3.7 mi	Preston, CT
ZIP code 06359	4.7 mi	North Stonington, CT
ZIP code 06372	6.1 mi	Old Mystic, CT
ZIP code 06335	6.6 mi	Gales Ferry, CT
ZIP code 06360	7.8 mi	Norwich, CT
ZIP code 06378	7.9 mi	Stonington, CT
ZIP code 06380	7.9 mi	Taftville, 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 06338, plotted from its record coordinates.

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

Scope ZIP code 06338. 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.