Daniel M. Lightner , Administrator
Planning & Zoning Department
141 South Main Street, Suite 501
Decatur, Illinois 62523
Phone: 217-424-1469
Fax: 217-424-1459
Hours: M-F 8:30 a.m. – 4:30 p.m.
excluding legal holidays
Welcome to the Macon County Geographic Information System (GIS) page.
GIS services are located in the Macon County
Planning Office. GIS a computer application that is capable of linking,
holding and using data that are related by a geographic location, or
places on the earth’s surface. Examples include property
boundaries, addresses, zoning districts, streets and roads, bike
trails, precincts and election districts.
GIS is a tremendously powerful resource when
mapping or performing land based analysis. It is an analytical tool
using locational associations or relationships of different data,
allowing the information to be displayed in a visual or graphic
form. Of principal importance is GIS’s ability to assist in
decision making by providing broad analysis capabilities along with
providing various comparisons of numerous geographic data layers along
with traditional databases.
Questions that GIS can help answer include:
- Location: "Where is it?"
- Condition: "What is located at…"
- Trends: "What has changed since…"
- Patterns: "What spatial patterns exist?"
- Modeling: "What if…"
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