In which county is ZIP code 03866 located?

ZIP 03866 is listed under Strafford County, NH.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 03866: Rochester, NH

ZIP: 03866

County: Strafford County

Coordinates: 43.30450, -70.97560

ZIP Type: Standard

Time Zone: Eastern Time (ET)

Explore detailed information for ZIP code 03866 in Rochester, NH. We include verified county details for Strafford County plus key geographic references used for mapping and logistics.

Primary City	Rochester
ZIP Code	03866
County	Strafford County
State	NH
Latitude / Longitude	43.30450, -70.97560
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 03866 (not an exact boundary).

Geographic & Administrative Context

Coordinates for 03866 are listed as 43.30450 / -70.97560, useful for GPS and service checks in and around Rochester, NH.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 03866 for mail delivery and general location reference in Strafford County, NH.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Rochester within NH.

Frequently Asked Questions

What is the primary city for ZIP code 03866?

The primary city for this ZIP code is Rochester, located in NH.

In which county is 03866 located?

ZIP code 03866 is situated within Strafford County, NH.

What are the coordinates for 03866?

The approximate center point is 43.30450 (Latitude) and -70.97560 (Longitude).

Is ZIP code 03866 active?

This page lists ZIP 03866 as Listed based on the latest refresh date shown above.

Does ZIP 03866 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