In which county is ZIP code 01803 located?

ZIP 01803 is listed under Middlesex County, MA.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 01803: Burlington, MA

ZIP: 01803

County: Middlesex County

Coordinates: 42.50890, -71.20040

ZIP Type: Standard

Time Zone: Eastern Time (ET)

Get a reliable snapshot of the Burlington, MA postal area 01803. This page summarizes county, coordinates, and local facts to help with services and location research.

Primary City	Burlington
ZIP Code	01803
County	Middlesex County
State	MA
Latitude / Longitude	42.50890, -71.20040
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 01803 (not an exact boundary).

Geographic & Administrative Context

Coordinates for 01803 are listed as 42.50890 / -71.20040, useful for GPS and service checks in and around Burlington, MA.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 01803 for mail delivery and general location reference in Middlesex County, MA.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Burlington within MA.

Frequently Asked Questions

What is the primary city for ZIP code 01803?

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

In which county is 01803 located?

ZIP code 01803 is situated within Middlesex County, MA.

What are the coordinates for 01803?

The approximate center point is 42.50890 (Latitude) and -71.20040 (Longitude).

Is ZIP code 01803 active?

This page lists ZIP 01803 as Listed based on the latest refresh date shown above.

Does ZIP 01803 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