U.S. Route 14 in Illinois Information
Ronald Reagan Highway 
US 14 highlighted in red
|Maintained by IDOT and CDOT|
|Length||69.55 mi  (111.93 km)|
|West end||US 14 in Harvard|
|East end||US 41 in Chicago|
|Counties||McHenry, Lake, Cook|
U.S. 14 begins in Chicago as Broadway on the city's north side. It runs north as Broadway and turns northwest onto Ridge Boulevard. One half block after crossing Clark Street, U.S. Route 14 turns west onto Peterson Avenue. At Cicero Avenue, Peterson Avenue becomes Caldwell Avenue and travels in a northwest/northern direction entering Niles. U.S. Route 14 joins Illinois Route 43 (Waukegan Road) for a short time before turning west onto Dempster Street. U.S. 14 travels west briefly touching Park Ridge and enters Des Plaines.
Where U.S. Highway 14 crosses Interstate 294 is an unusual intersection where all four street names change. From the south is Northwest Highway coming out of Park Ridge and Chicago; from the north is Rand Road. U.S. Highway 14 continues straight west but no longer as Dempster Street, but now as Miner Street. Miner Street begins a northwesterly direction into downtown Des Plaines crossing two intersections of U.S. Routes 45 and 12. The name Miner Street changes to Northwest Highway after going under a wooden railroad underpass on a large S-curve. U.S. Route 14 continues for most of the rest of its length northwest to Wisconsin designated as Northwest Highway.
Though the name is not used among locals, the entire portion of U.S. 14 in Illinois is given the honorary name Ronald Reagan Highway, which is not to be confused with the Ronald Reagan Memorial Tollway.  U.S. 14 in Illinois is 69.55 miles (111.93 km) in length. 
Before the late 1930s, U.S. Route 14 followed present-day IL 31 south of Crystal Lake, IL 72 east of West Dundee, Nagle Avenue, and Addison Street before terminating at Lake Shore Drive (US 41).  In the late 1930s, the designation was rerouted to follow most of its current designation which directly connected to Park Ridge and Niles via Busse Highway and Center Street (now Touhy Avenue) before reaching Caldwell Avenue.  Between 1952 and the late 1970s, U.S. Route 14 continued towards Foster Avenue to Lake Shore Drive, where it then turned south. It left Lake Shore Drive for Michigan Avenue and intersected U.S. Route 66.   It terminated at what was then U.S. Route 20 before it was rerouted away from Chicago Loop.
|McHenry||Chemung Township||0.00||0.00||US 14 west – Walworth||Wisconsin state line|
|Harvard||2.6||4.2||CR A15 east (Oak Grove Road)||Western terminus of CR A15|
|5.2||8.4||IL 173 east (Diggins Street)||Northern end of IL 173 concurrency|
|5.7||9.2||IL 173 west (Brink Street)||Southern end of IL 173 concurrency|
|6.2||10.0||CR A22 (McGuire Road, Airport Road)|
|6.9||11.1||IL 23 south – Marengo||Northern terminus of IL 23|
|Woodstock||11.5||18.5||CR A28 east (Deep Cut Road)||Western terminus of CR A28|
|12.4||20.0||CR A29 west (Dunham Road)||Eastern terminus of CR A29|
|14.9||24.0||IL 120 east (Washington Street)||Western terminus of IL 120|
|19.6||31.5||IL 47 (Eastwood Drive)|
|Crystal Lake||25.4||40.9||IL 176 (Terra Cotta Avenue)|
|29.3||47.2||IL 31 – Algonquin, Elgin, McHenry||Interchange|
|Fox River Grove||34.1||54.9||IL 22 east||Western terminus of IL 22|
|Lake||Barrington||38.5||62.0||IL 59 (Hough Street, Barrington Road)|
|Cook||Palatine Township||41.7||67.1||IL 68 (Dundee Road) – Dundee, Wheeling||Interchange|
|Mt. Prospect||51.6||83.0||IL 83 (South Main Street)|
|Des Plaines||52.9||85.1||IL 58 ( Golf Road, Wolf Road)|
|54.5||87.7||US 12 / US 45 ( Mannheim Road, Lee Street, Graceland Avenue)|
I-294 south ( Tri-State Tollway) – Indiana
|No access from or to I-294 north; I-294 exit 44|
|Niles||57.7||92.9||IL 21 ( Milwaukee Avenue)||Interchange|
|Morton Grove||59.1||95.1||IL 43 north (Waukegan Road) / IL 58 (Dempster Street)||Northern end of IL 43 concurrency|
|59.5||95.8||IL 43 south (Waukegan Road)||Southern end of IL 43 concurrency|
|Chicago||63.8||102.7||I-94 (Edens Expressway) – Downtown Chicago, Milwaukee||No eastbound exit to I-94 west; no wesbound access from I-94 east; I-94 exit 41|
|63.9||102.8||IL 50 ( Cicero Avenue)|
|66.0||106.2||US 41 ( Lincoln Avenue)|
|68.5||110.2||Hollywood Avenue to Lake Shore Drive|
|69.2||111.4||US 41 ( Foster Avenue)||Eastern terminus of US 14|
|1.000 mi = 1.609 km; 1.000 km = 0.621 mi|
- Ronald Reagan Presidential Foundation & Library. "Things Named in Honor of Ronald Reagan". Retrieved 2007-10-23.
- Carlson, Rick (2005-03-15). "Illinois Highways Page: Routes 1-20". Retrieved 2006-05-27.
- Illinois Technology Transfer Center (2007). "T2 GIS Data". Retrieved 2007-11-08.
- Illinois Secretary of State; Rand McNally (1936). Road Map Illinois (Map). [c. 1:950,000 and c. 1:1,110,000]. Springfield: Illinois Secretary of State – via Illinois Digital Archives.
- Illinois Secretary of State; Rand McNally (1939). Illinois Road Map (Map) (1939–1940 ed.). c. 1:918,720. Springfield: Illinois Secretary of State – via Illinois Digital Archives.
- Illinois Division of Highways (1953). Illinois Official Highway Map (Map). [1:805,000]. Springfield: Illinois Division of Highways – via Illinois Digital Archives.
- Illinois Department of Transportation (1977). Illinois Highway Map (Map). [1:772,500]. Springfield: Illinois Department of Transportation – via Illinois Digital Archives.
|U.S. Route 14|