In which county is ZIP code 01890 located?

ZIP 01890 is listed under Middlesex County, MA.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 01890: Winchester, MA

ZIP: 01890

County: Middlesex County

Coordinates: 42.45300, -71.14410

ZIP Type: Standard

Time Zone: Eastern Time (ET)

Get a reliable snapshot of the Winchester, MA postal area 01890. This page summarizes county, coordinates, and local facts to help with services and location research.

Primary City	Winchester
ZIP Code	01890
County	Middlesex County
State	MA
Latitude / Longitude	42.45300, -71.14410
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 01890 (not an exact boundary).

Geographic & Administrative Context

For mapping and verification, 01890 is commonly represented around 42.45300, -71.14410. These coordinates help identify the general area within Middlesex County, MA.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 01890 for mail delivery and general location reference in Middlesex County, MA.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Winchester within MA.

Frequently Asked Questions

What is the primary city for ZIP code 01890?

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

In which county is 01890 located?

ZIP code 01890 is situated within Middlesex County, MA.

What are the coordinates for 01890?

The approximate center point is 42.45300 (Latitude) and -71.14410 (Longitude).

Is ZIP code 01890 active?

This page lists ZIP 01890 as Listed based on the latest refresh date shown above.

Does ZIP 01890 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