Southbury Connecticut ZIP Codes

Southbury holds a single ZIP code.

Every ZIP code in Southbury

The complete list of Southbury, Connecticut ZIP codes with the planning region each falls in.
ZIP code	Planning region
06488	Naugatuck Valley Planning Region

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Southbury codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for Southbury. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.

How these codes cluster

Every Southbury ZIP code begins 064. Those first three digits identify the sectional center facility that processes mail for this part of Connecticut. Statewide that range covers 64 ZIP codes, so Southbury accounts for 2% of it.

Every Connecticut ZIP prefix and the region it covers →

Area codes covering Southbury

ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The codes below serve the same ground Southbury occupies.

Southbury Connecticut area codes in full →

Where Southbury's ZIP codes sit

Each point is one Southbury ZIP code, plotted from its record coordinates.

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

Cities near Southbury

The closest places to Southbury with their own ZIP code list, nearest first.
City	Distance	ZIP codes
Newtown Connecticut ZIP codes	6.4 mi	1 ZIP code
Naugatuck Connecticut ZIP codes	9.0 mi	1 ZIP code
Brookfield Connecticut ZIP codes	9.0 mi	1 ZIP code
Watertown Connecticut ZIP codes	10 mi	1 ZIP code
Waterbury Connecticut ZIP codes	11 mi	16 ZIP codes
Ansonia Connecticut ZIP codes	12 mi	1 ZIP code
Shelton Connecticut ZIP codes	13 mi	1 ZIP code
Derby Connecticut ZIP codes	13 mi	1 ZIP code

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