City ZIP codes · Connecticut

Middletown, CT ZIP Codes

2 ZIP codes use the postal name Middletown, Connecticut (Census 2020 ZCTAs and GeoNames postal codes, October 2026), all residential. Middletown's most populous ZIP code is 06457, with 46,720 people (ACS 2020-2024); 100% of its land is in the city of Middletown.

ACS2020-24
Census2020
GeoNames2026

Where are Middletown's ZIP codes?

The 2 residential ZIP codes named Middletown, shaded by median household income in national fifths (ACS 2020-2024). Select a ZIP to open it. <$54.1k$98.1k+no figure

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

All 2 residential ZIP codes of Middletown

Residential ZIP codes with the postal name Middletown, CT, largest first (ACS 2020-2024); sort by any column
	County
06457	Middlesex County	46,720	1,148	$80k	$295k
06459	Middlesex County	1,238	3,718	–	–

Download the 2 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; 2023 Gazetteer land areas (2020 ZCTAs); town names from simplemaps US ZIP Codes (CC BY 4.0) and GeoNames (CC BY 4.0).

Which counties do Middletown's ZIP codes reach?

Middletown's residential ZIP codes lie in Middlesex County.

Which first three digits do Middletown's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of Middletown starts with 064.

Three-digit prefixes of Middletown's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Middletown's
Prefix	Sectional center	Here	All codes
064	Hartford, CT (SCF 060)	2	64

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.