Illinois · FIPS 17057 · County seat: Lewistown
Fulton County, IL GIS & Parcel Viewer
Looking for lot lines or a parcel number in Fulton County, IL? The quickest route is the Fulton County ArcGIS parcel map, the county parcel map we keep on file for this county. We link straight to it and add a few tips for getting around.
Open the Fulton County parcel map ↗
Opens gis.fultoncountyil.gov in a new tab. We link out and never embed or copy parcel data.
Map and county facts
| Official map | Fulton County ArcGIS parcel map |
|---|---|
| Type | County-run map |
| Website | gis.fultoncountyil.gov |
| Access | Free, no login (checked Oct 2026) |
| County seat | Lewistown |
| Population | 32,541 (2023 Census Bureau estimate) |
| Land area | 866 sq mi |
| FIPS code | 17057 |
Who runs this map
It is a county-level map: Fulton County or the company it hires keeps the parcel layer up to date. Our October 2026 check found the map open to the public, with no account or payment needed.
Finding a property on this map
- Open the official link. The viewer is built with ArcGIS Web AppBuilder; if a disclaimer pops up, accept it to continue.
- Use the search widget, usually in the upper left, to find a street address or parcel ID.
- Click a parcel to open its info window.
- The widget bar holds extras such as the layer list, basemap switcher, measure and print tools.
Rural addresses don't always geocode well. When that happens, zoom in by hand and click the parcel, or search by owner name.
Fulton County by the numbers
Fulton County had an estimated 32,541 residents in 2023, according to the Census Bureau. With about 866 square miles of land, that works out to roughly 38 people per square mile. That makes it number 45 out of 102 Illinois counties by population. Its county seat is Lewistown.
Neighboring counties
Fulton County shares a border with the counties below. Each link has its own official map:
Before you rely on the lines
The lines you see online are approximate. They're good for finding a lot and its parcel number, but a legal boundary question needs the recorded plat or a surveyor.