In which county is ZIP code 01904 located?

ZIP 01904 is listed under Essex, MA.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 01904: Lynn, MA

ZIP: 01904

County: Essex

Coordinates: 42.48890, -70.96470

ZIP Type: Standard

Time Zone: Eastern Time (ET)

Get a reliable snapshot of the Lynn, MA postal area 01904. This page summarizes county, coordinates, and local facts to help with services and location research.

Primary City	Lynn
ZIP Code	01904
County	Essex
State	MA
Latitude / Longitude	42.48890, -70.96470
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 01904 (not an exact boundary).

Geographic & Administrative Context

The geographic center of ZIP code 01904 is approximately 42.48890 (latitude) and -70.96470 (longitude). This location sits within Essex, contributing to regional planning across MA.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 01904 for mail delivery and general location reference in Essex, MA.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Lynn within MA.

Frequently Asked Questions

What is the primary city for ZIP code 01904?

The primary city for this ZIP code is Lynn, located in MA.

In which county is 01904 located?

ZIP code 01904 is situated within Essex, MA.

What are the coordinates for 01904?

The approximate center point is 42.48890 (Latitude) and -70.96470 (Longitude).

Is ZIP code 01904 active?

This page lists ZIP 01904 as Listed based on the latest refresh date shown above.

Does ZIP 01904 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