In which county is ZIP code 61812 located?

ZIP 61812 is listed under Vermilion, IL.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 61812: Armstrong, IL

ZIP: 61812

County: Vermilion

Coordinates: 40.21750, -87.89430

ZIP Type: Standard

Time Zone: Central Time (CT)

This profile provides an in-depth look at ZIP code 61812, serving Armstrong in IL. It lies in Vermilion and supports delivery, planning, and address verification.

Primary City	Armstrong
ZIP Code	61812
County	Vermilion
State	IL
Latitude / Longitude	40.21750, -87.89430
ZIP Type	Standard
Time Zone	Central Time (CT)
Data Updated	2026-01-08

Maps & Useful Links

Open in Maps: Google Maps · OpenStreetMap

These links show the approximate center point for ZIP 61812 (not an exact boundary).

Geographic & Administrative Context

The geographic center of ZIP code 61812 is approximately 40.21750 (latitude) and -87.89430 (longitude). This location sits within Vermilion, contributing to regional planning across IL.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 61812 for mail delivery and general location reference in Vermilion, IL.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Armstrong within IL.

Frequently Asked Questions

What is the primary city for ZIP code 61812?

The primary city for this ZIP code is Armstrong, located in IL.

In which county is 61812 located?

ZIP code 61812 is situated within Vermilion, IL.

What are the coordinates for 61812?

The approximate center point is 40.21750 (Latitude) and -87.89430 (Longitude).

Is ZIP code 61812 active?

This page lists ZIP 61812 as Listed based on the latest refresh date shown above.

Does ZIP 61812 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