National Register listings in Piatt County, Illinois
Most notable listings
Allerton, Robert, Estate Monticello · District · listed 2007 
Monticello Courthouse Square Historic District Monticello · District · listed 2009 
North State Street Historic District Monticello · District · listed 1998 
South Charter Street Historic District Monticello · District · listed 2002 
Voorhies Castle Bement · Building · listed 1979 
Bryant, Francis E., House Bement · Building · listed 2017 Historic districts (4)
- Allerton, Robert, Estate — Monticello
- Monticello Courthouse Square Historic District — Monticello
- North State Street Historic District — Monticello
- South Charter Street Historic District — Monticello
All listings
Places: Monticello (4) · Bement (2)
| Name | Place | Type | Listed |
|---|---|---|---|
| Allerton, Robert, Estate | Monticello | District | 2007 |
| Bryant, Francis E., House | Bement | Building | 2017 |
| Monticello Courthouse Square Historic District | Monticello | District | 2009 |
| North State Street Historic District | Monticello | District | 1998 |
| South Charter Street Historic District | Monticello | District | 2002 |
| Voorhies Castle | Bement | Building | 1979 |
State Historic Preservation Office
Nominations, tax-credit certifications and official records for Illinois go through the Illinois State Historic Preservation Office. See how to nominate a property.