In which county is ZIP code 08666 located?

ZIP 08666 is listed under Mercer, NJ.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 08666: Trenton, NJ

ZIP: 08666

County: Mercer

Coordinates: 40.28050, -74.71200

ZIP Type: Standard

Time Zone: Eastern Time (ET)

Get a reliable snapshot of the Trenton, NJ postal area 08666. This page summarizes county, coordinates, and local facts to help with services and location research.

Primary City	Trenton
ZIP Code	08666
County	Mercer
State	NJ
Latitude / Longitude	40.28050, -74.71200
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 08666 (not an exact boundary).

Geographic & Administrative Context

For mapping and verification, 08666 is commonly represented around 40.28050, -74.71200. These coordinates help identify the general area within Mercer, NJ.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 08666 for mail delivery and general location reference in Mercer, NJ.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Trenton within NJ.

Frequently Asked Questions

What is the primary city for ZIP code 08666?

The primary city for this ZIP code is Trenton, located in NJ.

In which county is 08666 located?

ZIP code 08666 is situated within Mercer, NJ.

What are the coordinates for 08666?

The approximate center point is 40.28050 (Latitude) and -74.71200 (Longitude).

Is ZIP code 08666 active?

This page lists ZIP 08666 as Listed based on the latest refresh date shown above.

Does ZIP 08666 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