Place
- Illinois--Jo Daviess County1
- Illinois--Johnson County1
- Illinois--Kane1
- Illinois--Kane County1
- Illinois--Kankakee County1
- Illinois--Kendall County1
- Illinois--Keysport1
- Illinois--Kincaid1
- Illinois--Kingston1
- Illinois--Knox County1
- Illinois--La Harpe1
- Illinois--La Moille1
- Illinois--La Salle County1
- Illinois--Lake Bluff1
- Illinois--Lake County1
- Illinois--Lawrence County1
- Illinois--Livingston1
- Illinois--Loami1
- Illinois--Loda1
- Illinois--London Mills1