In which county is ZIP code 61818 located?

ZIP 61818 is listed under Piatt, IL.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 61818: Cerro Gordo, IL

ZIP: 61818

County: Piatt

Coordinates: 39.86810, -88.72560

ZIP Type: Standard

Time Zone: Central Time (CT)

This profile provides an in-depth look at ZIP code 61818, serving Cerro Gordo in IL. It lies in Piatt and supports delivery, planning, and address verification.

Primary City	Cerro Gordo
ZIP Code	61818
County	Piatt
State	IL
Latitude / Longitude	39.86810, -88.72560
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 61818 (not an exact boundary).

Geographic & Administrative Context

The geographic center of ZIP code 61818 is approximately 39.86810 (latitude) and -88.72560 (longitude). This location sits within Piatt, contributing to regional planning across IL.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 61818 for mail delivery and general location reference in Piatt, IL.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Cerro Gordo within IL.

Frequently Asked Questions

What is the primary city for ZIP code 61818?

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

In which county is 61818 located?

ZIP code 61818 is situated within Piatt, IL.

What are the coordinates for 61818?

The approximate center point is 39.86810 (Latitude) and -88.72560 (Longitude).

Is ZIP code 61818 active?

This page lists ZIP 61818 as Listed based on the latest refresh date shown above.

Does ZIP 61818 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