ZIP Code 06423: East Haddam, CT
County: Middlesex
Coordinates: 41.46960, -72.40590
ZIP Type: Standard
Time Zone: Eastern Time (ET)
Explore detailed information for ZIP code 06423 in East Haddam, CT. We include verified county details for Middlesex plus key geographic references used for mapping and logistics.
| Primary City | East Haddam |
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| ZIP Code | 06423 |
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| County | Middlesex |
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| State | CT |
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| Latitude / Longitude | 41.46960, -72.40590 |
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| ZIP Type | Standard |
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| Time Zone | Eastern Time (ET) |
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| Data Updated | 2026-01-08 |
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Maps & Useful Links
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These links show the approximate center point for ZIP 06423 (not an exact boundary).
Geographic & Administrative Context
The geographic center of ZIP code 06423 is approximately 41.46960 (latitude) and -72.40590 (longitude). This location sits within Middlesex, contributing to regional planning across CT.
Local Coverage Notes
ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 06423 for mail delivery and general location reference in
Middlesex,
CT.
Some addresses near East Haddam may share this ZIP due to delivery routing and local service areas.
Related ZIP Codes (Nearby)
Explore other postal codes near East Haddam within CT.
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Frequently Asked Questions
What is the primary city for ZIP code 06423?
The primary city for this ZIP code is East Haddam, located in CT.
In which county is 06423 located?
ZIP code 06423 is situated within Middlesex, CT.
What are the coordinates for 06423?
The approximate center point is 41.46960 (Latitude) and -72.40590 (Longitude).
Is ZIP code 06423 active?
This page lists ZIP 06423 as Listed based on the latest refresh date shown above.
Does ZIP 06423 cover multiple areas?
Yes. Many ZIP codes cover multiple neighborhoods or nearby areas. For exact boundaries, use official mapping tools.
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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