In which county is ZIP code 80540 located?

ZIP 80540 is listed under Boulder, CO.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 80540: Lyons, CO

ZIP: 80540

County: Boulder

Coordinates: 40.23570, -105.32310

ZIP Type: Standard

Time Zone: Mountain Time (MT)

This profile provides an in-depth look at ZIP code 80540, serving Lyons in CO. It lies in Boulder and supports delivery, planning, and address verification.

Primary City	Lyons
ZIP Code	80540
County	Boulder
State	CO
Latitude / Longitude	40.23570, -105.32310
ZIP Type	Standard
Time Zone	Mountain Time (MT)
Data Updated	2026-01-08

Maps & Useful Links

Open in Maps: Google Maps · OpenStreetMap

These links show the approximate center point for ZIP 80540 (not an exact boundary).

Geographic & Administrative Context

Coordinates for 80540 are listed as 40.23570 / -105.32310, useful for GPS and service checks in and around Lyons, CO.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 80540 for mail delivery and general location reference in Boulder, CO.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Lyons within CO.

Frequently Asked Questions

What is the primary city for ZIP code 80540?

The primary city for this ZIP code is Lyons, located in CO.

In which county is 80540 located?

ZIP code 80540 is situated within Boulder, CO.

What are the coordinates for 80540?

The approximate center point is 40.23570 (Latitude) and -105.32310 (Longitude).

Is ZIP code 80540 active?

This page lists ZIP 80540 as Listed based on the latest refresh date shown above.

Does ZIP 80540 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