Middletown, CT ZIP Codes
Middletown, Connecticut has 2 ZIP codes: for street addresses and for a single organization.
Mail addressed to Middletown covers nearby places too.
Where the 06457 ZIP code reaches
Tap or point to an area to see its ZIP code.Full-size map
06459 has no area on the map: it is a PO box or single-organization ZIP code. Dashed line: Middletown city limits.
Map: Census Bureau ZIP Code Tabulation Areas (2020) and place limits (2024).
Check an address in Middletown
Street ranges from the Census Bureau, 2026. PO box and organization ZIP codes are not found by street. A new street may be missing: address not found?
Middletown PO box and business ZIP codes
| ZIP | Type and post office or station |
|---|---|
| 06457 | street delivery Middletown |
| 06459 | one organization Wallingford Sorting and Delivery Center |
Middletown ZIP code questions
What is the main ZIP code for Middletown?
06457, the ZIP code of the main Middletown post office at 11 Silver St.
What county is Middletown in?
Lower Connecticut River Valley Planning Region.
ZIP codes for towns near Middletown
More towns near Middletown: East Hartford, Hartford, West Hartford, Town of Manchester, Hamden, Bristol, Manchester, Waterbury, Naugatuck.
Sources and last checked
USPS ZIP Locale Detail (October 1, 2026), GeoNames (CC BY 4.0), U.S. Census Bureau, HUD-USPS crosswalk.
Checked October 20, 2026. Sources · How we build our lists · Corrections