In which county is ZIP code 06378 located?

ZIP 06378 is listed under New London County, CT.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 06378: Stonington, CT

ZIP: 06378

County: New London County

Coordinates: 41.36640, -71.91550

ZIP Type: Standard

Time Zone: Eastern Time (ET)

Get a reliable snapshot of the Stonington, CT postal area 06378. This page summarizes county, coordinates, and local facts to help with services and location research.

Primary City	Stonington
ZIP Code	06378
County	New London County
State	CT
Latitude / Longitude	41.36640, -71.91550
ZIP Type	Standard
Time Zone	Eastern Time (ET)
Data Updated	2026-01-08

Maps & Useful Links

Open in Maps: Google Maps · OpenStreetMap

These links show the approximate center point for ZIP 06378 (not an exact boundary).

Geographic & Administrative Context

Coordinates for 06378 are listed as 41.36640 / -71.91550, useful for GPS and service checks in and around Stonington, CT.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 06378 for mail delivery and general location reference in New London County, CT.

Some addresses near Stonington may share this ZIP due to delivery routing and local service areas.

Related ZIP Codes (Nearby)

Explore other postal codes near Stonington within CT.

Frequently Asked Questions

What is the primary city for ZIP code 06378?

The primary city for this ZIP code is Stonington, located in CT.

In which county is 06378 located?

ZIP code 06378 is situated within New London County, CT.

What are the coordinates for 06378?

The approximate center point is 41.36640 (Latitude) and -71.91550 (Longitude).

Is ZIP code 06378 active?

This page lists ZIP 06378 as Listed based on the latest refresh date shown above.

Does ZIP 06378 cover multiple areas?

Yes. Many ZIP codes cover multiple neighborhoods or nearby areas. For exact boundaries, use official mapping tools.

Methodology & Data Notes

How we build this page: We generate this page from a structured ZIP dataset and refresh key fields (city, county, and coordinates) during scheduled updates. Coordinates represent an approximate center point, not an official boundary map.
Sources: Public ZIP reference datasets and geographic coordinate references. If you use specific sources (e.g., USPS, Census), list them on your About/Methodology page.

Page updated: 2026-01-08