Scenic highways in Illinois
{{Use American English|date=July 2025}}
{{Use mdy dates|date=February 2025}}
{{infobox state highway system|header_type=historic
|title=Illinois Scenic Byways
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List
{{incomplete list|transport|date=June 2025}}
class="wikitable sortable plainrowheaders"
|+List of Illinois Byways ! rowspan="2" |Name ! rowspan="2" |Southern or western terminus ! rowspan="2" |Northern or eastern terminus ! colspan="2" |Length ! rowspan="2" |Date ! rowspan="2" |Description ! rowspan="2" |{{abbr|Ref(s).|Reference(s)}} |
{{abbr|mi|Miles}}
!{{abbr|km|Kilometers}} |
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scope="row" |Ohio River Scenic Byway
|Indiana state line | | | |Closely parallels the Ohio River in Illinois |
scope="row" |Illinois River Road
|Havana, Illinois, East Laural Street (U.S. Route 136) at South Charlotte Street. |Ottawa, Illinois, Washington Square Park | | | |Parallels the Illinois River along both banks. |
scope="row" | Lincoln Highway
|Iowa state line |Indiana state line | | |October 4, 2011 |Follows the Illinois portion of the original route of the Lincoln Highway |
scope="row" | Historic Route 66 Scenic Byway
|Martin Luther King Bridge at the Missouri state line in East St. Louis | | | | | |