ZIP Code 06820: Darien, CT
County: Fairfield County
Coordinates: 41.07680, -73.48530
ZIP Type: Standard
Time Zone: Eastern Time (ET)
This profile provides an in-depth look at ZIP code 06820, serving Darien in CT. It lies in Fairfield County and supports delivery, planning, and address verification.
| Primary City | Darien |
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| ZIP Code | 06820 |
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| County | Fairfield County |
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| State | CT |
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| Latitude / Longitude | 41.07680, -73.48530 |
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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 06820 (not an exact boundary).
Geographic & Administrative Context
The geographic center of ZIP code 06820 is approximately 41.07680 (latitude) and -73.48530 (longitude). This location sits within Fairfield County, contributing to regional planning across CT.
Local Coverage Notes
ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 06820 for mail delivery and general location reference in
Fairfield County,
CT.
Coverage may include nearby neighborhoods and adjacent unincorporated areas commonly associated with Darien.
Related ZIP Codes (Nearby)
Explore other postal codes near Darien within CT.
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Frequently Asked Questions
What is the primary city for ZIP code 06820?
The primary city for this ZIP code is Darien, located in CT.
In which county is 06820 located?
ZIP code 06820 is situated within Fairfield County, CT.
What are the coordinates for 06820?
The approximate center point is 41.07680 (Latitude) and -73.48530 (Longitude).
Is ZIP code 06820 active?
This page lists ZIP 06820 as Listed based on the latest refresh date shown above.
Does ZIP 06820 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