ZIP Code 06123

06123 is one of Connecticut's ZIP codes, delivering to addresses in Hartford, Capitol Planning Region.

City

Hartford

Planning region

Capitol Planning Region

State

Connecticut

Prefix

061xx

Where this code sits

06123 is part of the 061xx range, the group of codes handled by one mail processing centre. Hartford is served by 36 ZIP codes in total; the full list, with the planning region each falls in, is on the Hartford page.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 06123 delivers to without sharing its boundary.

ZIP codes nearest 06123

The ZIP codes whose reference points sit closest to 06123.
ZIP code	Distance	Delivers to
ZIP code 06126	0.0 mi	Hartford, CT
ZIP code 06132	0.0 mi	Hartford, CT
ZIP code 06134	0.0 mi	Hartford, CT
ZIP code 06152	0.0 mi	Hartford, CT
ZIP code 06167	0.0 mi	Hartford, CT
ZIP code 06155	0.4 mi	Hartford, CT
ZIP code 06156	0.4 mi	Hartford, CT
ZIP code 06115	0.4 mi	Hartford, 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 06123, plotted from its record coordinates.

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

Scope ZIP code 06123. 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.