County · code 17057
Fulton CountyIllinois
Fulton County is in Illinois, with its county seat in Lewistown. The county was formed on January 28, 1823, and named after Robert Fulton.
- Founded1823
- County seatLewistown
- Named forRobert Fulton
- Land area866 sq mi + 17 sq mi water
- Population33,609 2020 Census
- Parcels mapped27,907 checked 14 October 2026
Where it is
Fulton on the map of Illinois
Illinois has 102 counties and county equivalents, each with its own records office. Shapes with a page are links.
History
Formed in 1823 from Pike County
An old deed may name a county that no longer exists, or a boundary that has since moved.
Fulton County was created from Pike County in 1823. In 1825, Fulton lost territory to the creation of Knox, Peoria, Schuyler, Henry, and Putnam counties. In 1845, Fulton gained part of Non-County Area 5, which was then eliminated.
- 1823Fulton County created Fulton created from Non-County Area 3 attached to Pike. Non-County Area 5 attached to Fulton "until otherwise disposed of." · Ill. Laws 1822-1823, pp. 88-89
- 1825Lost territory Fulton lost to creation of Knox, Peoria, and Schuyler; Non-County Area 5 attached to Fulton lost to creation of Henry, Knox, Peoria, and Putnam. · Ill. Laws 1824-1825, pp. 85-87, 92-96
- 1845Gained territory Fulton gained part of Non-County Area 5 ("the gore"); Non-County Area 5 eliminated. · Ill. Laws 1844-1845, p. 267
Land and parcels
What the maps cover in Fulton
Who publishes each layer, how good it is, and when we last checked.
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Parcels Good enough
Lot lines and tax-map numbers for 27,907 parcels from Fulton County. Drawn for tax purposes: usually within a few feet of a survey, but not a survey.
checked 14 October 2026 -
Address points Missing
No public address points layer found for Fulton County yet.
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Buildings Reference
Roof outlines traced from aerial imagery from FEMA Response Geospatial Office with Oak Ridge National Laboratory (ORNL). Good for seeing what is on a lot; not accurate enough to set a fence from.
checked 18 October 2026
- Official
- from the office that keeps the record
- Good enough
- a reliable statewide or national copy
- Fallback
- a guide only; check the official record
- Missing
- nothing public found yet
People and land
Fulton by the Census
Source: US Census Bureau, 2020 Census; US Census Bureau, 2020 Gazetteer Files. Not endorsed or certified by the Census Bureau.
Rules and offices
Who to ask before you build, dig or sell
Official county pages only. We link to them; we do not copy them, because they change.
Inside a city or town, permits usually come from that city rather than the county.
Permits
Zoning and code
County government
- County government
The official website of Fulton County.
See your own lot on these maps
Open Fulton County on Parcel Chart's free map and click your parcel. Save it with a free account; the full record of your place (site map, projects, documents) is Pro, in early access.
Questions
Common questions about Fulton County
- When was Fulton County founded?
- Fulton County was founded in 1823, formed from Pike County, and named after Robert Fulton.
- What is the county seat of Fulton County?
- The county seat of Fulton County is Lewistown.
- Is there an online parcel map for Fulton County?
- Yes. Fulton County publishes a parcel map of 27,907 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
- Has Fulton County's boundary or name changed?
- Fulton County was created in 1823 from Pike County. Since then the Atlas of Historical County Boundaries records 2 later changes, chiefly involving Henry County, Knox County and Peoria County.
- Is my lot in a flood zone?
- We do not have flood maps for Fulton County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.
Nearby