The Kane County Highway System is a county-maintained system of arterial county highways in Kane County, Illinois, United States. They are marked with the standard M1-6 [1] pentagon-shaped highway marker on the base of traffic signals at intersections with other county highways. They are not marked on any freeway or tollway exits or signed with separate reassurance markers. In addition, although concurrencies of county highways exist in the county, they too are not explicitly signed as such.
| Number | Length (mi) [2] | Length (km) | Southern or western terminus | Northern or eastern terminus | Local names | Formed | Removed | Notes |
|---|---|---|---|---|---|---|---|---|
 CR 1 | — | — | CR 10 (Main Street Road) | IL 38 (Lincoln Highway) | West County Line Road | — | — | |
 CR 2 | — | — | IL 64 | Burlington city limits | Burlington Road | — | — | |
 CR 3 | 2.6 | 4.2 | North State Street | US 20 | Allen Road | — | — | Allen Road continues west as CR 45 |
 CR 4 | — | — | West Kane-DeKalb County (County Line Road) | IL 47 | Perry Road, Harter Road | — | — | |
 CR 5 | 8.3 | 13.4 | IL 47 | IL 31 | Silver Glen Road | — | — | |
 CR 6 | 2.4 | 3.9 | CR 59 (Tyrrell Road) | CR 30 (Huntley Road) | Galligan Road | — | — | |
 CR 8 | 7.8 | 12.6 | CR 10 (Main Street Road) | East Kane-DuPage county line | Fabyan Parkway | — | — | |
 CR 10 | 14.3 | 23.0 | CR 1 (West County Line Road) | CR 34 (Randall Road) | Main Street Road | — | — | |
 CR 11 | — | — | IL 64 | Burlington city limits | Peplow Road | — | — | Southern segment |
| CR 11 | — | — | CR 46 (Burlington Road) | IL 72 | French Road | — | — | Northern segment |
 CR 14 | — | — | CR 41 (Keslinger Road) | Ch 27 (I.C. Trail) | Meredith Road | — | — | |
 CR 15 | — | — | CR 78 (Bliss Road) | CR 83 (Orchard Road) | Healy Road, Tanner Road | — | — | |
 CR 16 | — | — | CR 10 (Main Street Road) | CR 41 (Keslinger Road) | Bunker Road | — | — | |
 CR 17 | 5.9 | 9.5 | CR 32 (Plato Road) | CR 18 (McLean Boulevard) | Bowes Road | — | — | |
 CR 18 | 0.7 | 1.1 | West Spring Street | CR 17 (Bowes Road) | North McLean Boulevard | — | — | |
 CR 19 | 2.5 | 4.0 | CR 77 (Kirk Road) | IL 25, CR 37 (Stearns Road) | Dunham Road | — | — | |
 CR 20 | 0.4 | 0.64 | CR 19 (Dunham Road) | East Kane-DuPage county line | Army Trail Road | — | — | |
 CR 21 | — | — | CR 36 (Harmony Road) | CR 34 (Randall Road) | Big Timber Road | — | — | |
 CR 22 | 8.5 | 13.7 | Burlington city limits | US 20 | Plank Road | — | — | Plank Road continues west as CR 38 |
 CR 23 | — | — | CR 1 (West County Line Road) | IL 47 | Beith Road, Thatcher Road | — | — | |
 CR 24 | 13.3 | 21.4 | US 30 | CR 83 (Orchard Road) | Jericho Road | — | — | |
 CR 26 | 5 | 8.0 | IL 47 | CR 8 (Fabyan Parkway) | Hughes Road | — | — | |
 CR 27 | — | — | IL 64 | IL 47 | I.C. Trail, Sauber Road, Lees Road | — | — | |
 CR 28 | 6.1 | 9.8 | IL 64 | CR 11 (Peplow Road) | McGough Road | — | — | |
 CR 29 | 3 | 4.8 | IL 25 (Southeast River Road) | Hill Avenue | Montgomery Road | — | — | |
 CR 30 | 6.3 | 10.1 | North Kane-McHenry county line | IL 31 (Western Avenue) | Huntley Road | — | — | |
 CR 32 | 4 | 6.4 | CR 2 (Burlington Road) | CR 17 (Bowes Road) | Plato Road | — | — | |
 CR 33 | 3.6 | 5.8 | CR 32 (Plato Road) | CR 22 (Plank Road) | Rippburger Road, Russell Road | — | — | |
 CR 34 | 23.4 | 37.7 | CR 83 (Orchard Road), CR 71 (Mooseheart Road) | North Kane-McHenry county line | Randall Road | — | — | Longest county highway in Kane County |
 CR 35 | — | — | South Kane-Kendall county line | Rhodes Street | Granart Road | — | — | |
 CR 36 | 4.1 | 6.6 | CR 45 (Allen Road) | US 20 | Harmony Road, Getty Road | — | — | |
 CR 37 | 6.3 | 10.1 | CR 34 (Randall Road) | East Kane-DuPage county line | Stearns Road | — | — | Stearns Road continues east in DuPage County |
 CR 38 | 2.6 | 4.2 | West Kane-DeKalb county line | Burlington city limits | Plank Road | — | — | Plank Road continues east as CR 22 |
 CR 41 | 13.4 | 21.6 | CR 1 (West County Line Road) | CR 34 (Randall Road) | Keslinger Road | — | — | |
 CR 44 | 5 | 8.0 | US 30 | CR 10 (Main Street Road) | Davis Road, Swan Road | — | — | |
 CR 45 | — | — | West Kane-DeKalb county line | CR 36 (Harmony Road) | Allen Road | — | — | |
 CR 46 | — | — | CR 11 (French Road) | CR 45 (Allen Road) | Burlington Road, Walker Road | — | — | |
 CR 48 | 4.3 | 6.9 | CR 44 (Davis Road) | CR 4 (Harter Road) | Scott Road | — | — | |
 CR 49 | 5.8 | 9.3 | CR 28 (McGough Road) | CR 32 (Plato Road) | Ellithorpe Road, Pease Road | — | — | |
 CR 51 | 3.4 | 5.5 | CR 2 (Burlington Road) | CR 32 (Plato Road) | Dittman Road | — | — | |
 CR 56 | 6.4 | 10.3 | CR 1 (West County Line Road) | IL 47 | Ramm Road | — | — | |
 CR 59 | 3.3 | 5.3 | CR 21 (Big Timber Road) | CR 6 (Galligan Road) | Tyrrell Road | — | — | |
 CR 61 | 0.3 | 0.48 | IL 25 | East Kane-Cook county line | West Bartlett Road | — | — | Shortest county highway in Kane County |
 CR 62 | 8 | 13 | US 30 | CR 41 (Keslinger Road) | Dauberman Road | — | — | |
 CR 69 | 3.4 | 5.5 | IL 47 | CR 2 (Burlington Road) | Empire Road | — | — | |
 CR 71 | 1 | 1.6 | CR 83 (Orchard Road) | IL 31 (Lincolnway Street) | Mooseheart Road | — | — | |
 CR 73 | 3.2 | 5.1 | CR 2 (Burlington Road) | CR 34 (Randall Road) | Bolcum Road | — | — | |
 CR 77 | 9.1 | 14.6 | IL 56 (Butterfield Road) | CR 19 (Dunham Road) | Kirk Road | — | — | Kirk Road continues south as Farnsworth Avenue |
 CR 78 | 5.1 | 8.2 | IL 47 | CR 10 (Main Street Road) | Bliss Road | — | — | |
 CR 80 | 4.1 | 6.6 | CR 2 (Burlington Road) | CR 17 (Bowes Road) | Corron Road | — | — | |
 CR 81 | 4 | 6.4 | CR 41 (Keslinger Road) | IL 64 | LaFox Road | — | — | |
 CR 83 | 7.5 | 12.1 | US 30 | CR 34 (Randall Road) | Orchard Road | — | — | Orchard Road continues south of US 30 |
 CR 84 | 2.9 | 4.7 | CR 8 (Fabyan Parkway) | IL 38 | Kaneville Road, Peck Road | — | — | |
 CR 86 | 5.6 | 9.0 | CR 30 (Huntley Road) | IL 62 (Algonquin Road) | Longmeadow Parkway | — | — | Longmeadow Parkway will be completed in 2023 |