Intersections from west to east:

IL17 joins US34 east from the west, near Nekoma and the southern end of IL82

IL17 breaks off to go in a southerly direction at Galva

US34 joins IL78 north

Very shortly after that intersection, US34/IL78 meets IL91 at that route's northern end

US34 and IL78 split up at Kewanee, near IL81's eastern end at IL78

US34 joins US6 east near Sheffield

IL40 north of Buda

US34 turns northerly to break off of US6, as IL26 joins US34 north from the east, in Princeton

US34 breaks off of IL26 and heads northeasterly*

US34 meets IL89's northern end at La Moille

IL92 at its eastern end by La Moille

It passes through these towns: Galva, Kewanee, Neponset, Sheffield, Wyanet, Princeton, Dover, La Moille.