In which county is ZIP code 61830 located?

ZIP 61830 is listed under Piatt, IL.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 61830: Cisco, IL

ZIP: 61830

County: Piatt

Coordinates: 39.99720, -88.69620

ZIP Type: Standard

Time Zone: Central Time (CT)

Explore detailed information for ZIP code 61830 in Cisco, IL. We include verified county details for Piatt plus key geographic references used for mapping and logistics.

Primary City	Cisco
ZIP Code	61830
County	Piatt
State	IL
Latitude / Longitude	39.99720, -88.69620
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 61830 (not an exact boundary).

Geographic & Administrative Context

Coordinates for 61830 are listed as 39.99720 / -88.69620, useful for GPS and service checks in and around Cisco, IL.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 61830 for mail delivery and general location reference in Piatt, IL.

This ZIP may extend beyond the city core into nearby communities within Piatt.

Related ZIP Codes (Nearby)

Explore other postal codes near Cisco within IL.

Frequently Asked Questions

What is the primary city for ZIP code 61830?

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

In which county is 61830 located?

ZIP code 61830 is situated within Piatt, IL.

What are the coordinates for 61830?

The approximate center point is 39.99720 (Latitude) and -88.69620 (Longitude).

Is ZIP code 61830 active?

This page lists ZIP 61830 as Listed based on the latest refresh date shown above.

Does ZIP 61830 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