In which county is ZIP code 08558 located?

ZIP 08558 is listed under Somerset County, NJ.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 08558: Skillman, NJ

ZIP: 08558

County: Somerset County

Coordinates: 40.41730, -74.69380

ZIP Type: Standard

Time Zone: Eastern Time (ET)

Get a reliable snapshot of the Skillman, NJ postal area 08558. This page summarizes county, coordinates, and local facts to help with services and location research.

Primary City	Skillman
ZIP Code	08558
County	Somerset County
State	NJ
Latitude / Longitude	40.41730, -74.69380
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 08558 (not an exact boundary).

Geographic & Administrative Context

For mapping and verification, 08558 is commonly represented around 40.41730, -74.69380. These coordinates help identify the general area within Somerset County, NJ.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 08558 for mail delivery and general location reference in Somerset County, NJ.

Coverage may include nearby neighborhoods and adjacent unincorporated areas commonly associated with Skillman.

Related ZIP Codes (Nearby)

Explore other postal codes near Skillman within NJ.

Frequently Asked Questions

What is the primary city for ZIP code 08558?

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

In which county is 08558 located?

ZIP code 08558 is situated within Somerset County, NJ.

What are the coordinates for 08558?

The approximate center point is 40.41730 (Latitude) and -74.69380 (Longitude).

Is ZIP code 08558 active?

This page lists ZIP 08558 as Listed based on the latest refresh date shown above.

Does ZIP 08558 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