In which county is ZIP code 01840 located?

ZIP 01840 is listed under Essex, MA.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 01840: Lawrence, MA

ZIP: 01840

County: Essex

Coordinates: 42.70800, -71.16380

ZIP Type: Standard

Time Zone: Eastern Time (ET)

Explore detailed information for ZIP code 01840 in Lawrence, MA. We include verified county details for Essex plus key geographic references used for mapping and logistics.

Primary City	Lawrence
ZIP Code	01840
County	Essex
State	MA
Latitude / Longitude	42.70800, -71.16380
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 01840 (not an exact boundary).

Geographic & Administrative Context

Coordinates for 01840 are listed as 42.70800 / -71.16380, useful for GPS and service checks in and around Lawrence, MA.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 01840 for mail delivery and general location reference in Essex, MA.

This ZIP may extend beyond the city core into nearby communities within Essex.

Related ZIP Codes (Nearby)

Explore other postal codes near Lawrence within MA.

Frequently Asked Questions

What is the primary city for ZIP code 01840?

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

In which county is 01840 located?

ZIP code 01840 is situated within Essex, MA.

What are the coordinates for 01840?

The approximate center point is 42.70800 (Latitude) and -71.16380 (Longitude).

Is ZIP code 01840 active?

This page lists ZIP 01840 as Listed based on the latest refresh date shown above.

Does ZIP 01840 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