In which county is ZIP code 83420 located?

ZIP 83420 is listed under Fremont, ID.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 83420: Ashton, ID

ZIP: 83420

County: Fremont

Coordinates: 44.01530, -111.42530

ZIP Type: Standard

Time Zone: Mountain Time (MT)

Explore detailed information for ZIP code 83420 in Ashton, ID. We include verified county details for Fremont plus key geographic references used for mapping and logistics.

Primary City	Ashton
ZIP Code	83420
County	Fremont
State	ID
Latitude / Longitude	44.01530, -111.42530
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 83420 (not an exact boundary).

Geographic & Administrative Context

For mapping and verification, 83420 is commonly represented around 44.01530, -111.42530. These coordinates help identify the general area within Fremont, ID.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 83420 for mail delivery and general location reference in Fremont, ID.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Ashton within ID.

Frequently Asked Questions

What is the primary city for ZIP code 83420?

The primary city for this ZIP code is Ashton, located in ID.

In which county is 83420 located?

ZIP code 83420 is situated within Fremont, ID.

What are the coordinates for 83420?

The approximate center point is 44.01530 (Latitude) and -111.42530 (Longitude).

Is ZIP code 83420 active?

This page lists ZIP 83420 as Listed based on the latest refresh date shown above.

Does ZIP 83420 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