Call me crazy but I've always found Illinois street in Newberg, OR to be funny considering we are 1704 miles from Illinois as the crow flies to ORD.
Okay, you're crazy.
It is very common for at least one or two cities in most states to have a grouping of roads named after states. In Tacoma, there's a large grouping of streets of I-5/exit 132, including Montana Ave, Oregon Ave, Arizona Ave, California Ave, and Idaho St.
Many people know that most of the streets in Indianapolis' Mile Square (our central business district) are named after states, but many are not aware that two - Capitol Ave and Senate Ave - were originally named after southern states but got rechristened during the Civil War. However, not all such streets had their names changed, as Louisiana St, Virginia Ave, Georgia St, Kentucky Ave, and Alabama St all kept their names. Guess the powers that be back then just didn't want the two roadways that form the eastern and western borders of the Indiana State House to have names of rebel states (Mississippi St and Tennessee St, I believe). There once were streets named for North Carolina and South Carolina in the Mile Square as well, but those bordered Pogue's Run and were obliterated when that stream got buried in a tunnel as part of a project to elevate the railroad tracks through downtown Indy near the turn of the 20th Century.
Also, streets at the outer borders of the Mile Square are named for their relative position: North St, South St, East St, and West St. Which, of course, leads to addressing like East North St, West South St, South West St, et cetera. Still not as confusing as places like Salt Lake City though.