ZIP Code 06455

06455 is one of Connecticut's ZIP codes, delivering to addresses in Middlefield, Lower Connecticut River Valley Planning Region.

City: Middlefield
Planning region: Lower Connecticut River Valley Planning Region
State: Connecticut
Prefix: 064xx

Where this code sits

06455 is part of the 064xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Middlefield.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 06455 delivers to without sharing its boundary.

ZIP codes nearest 06455

The ZIP codes whose reference points sit closest to 06455.
ZIP code	Distance	Delivers to
ZIP code 06481	1.5 mi	Rockfall, CT
ZIP code 06457	3.9 mi	Middletown, CT
ZIP code 06422	3.9 mi	Durham, CT
ZIP code 06459	4.2 mi	Middletown, CT
ZIP code 06450	4.3 mi	Meriden, CT
ZIP code 06451	5.4 mi	Meriden, CT
ZIP code 06023	6.6 mi	East Berlin, CT
ZIP code 06492	6.6 mi	Wallingford, 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 06455, plotted from its record coordinates.

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

Scope ZIP code 06455. 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.