GIS Office

Phone: 618-594-6610
Fax: 618-594-0198
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Office Hours:
7:30 am – 4 pm

Mailing Address:
850 Fairfax Street
Room 110
Carlyle, IL 62231

Help with Addresses, Routes, or Incorrect Maps on Websites:

A Map has Errors or People Can’t Find my House:


Clinton County GIS Map

A Geographic Information System (GIS) is a computerized mapping system that integrates information, software, hardware, and people. It allows users to analyze and store geographic information and display it in a number of different formats. GIS is used in Clinton County for a wide variety of applications, such as parcel mapping, 9-1-1 addressing, flood zone determinations, and many others.

Links & Resources:

Learn About GIS: |
Illinois GIS Association: