"匆匆过客"主要部分是对了,不过芝加哥是在传统称呼上的"中西部",地理上的"中北部".

资料来自维基百科:

The Midwest, or more properly, the North Central Region, is defined by the U.S. Census Bureau as these 12 states:

Illinois: Old Northwest, Ohio River and Great Lakes state
Indiana: Old Northwest, Ohio River and Great Lakes state
Iowa: Louisiana Purchase, Great Plains state
Kansas: Louisiana Purchase, Great Plains state
Michigan: Old Northwest, and Great Lakes state
Minnesota: Old Northwest, and Great Lakes state; western part Louisiana Purchase
Missouri: Louisiana Purchase, Border state, Great Plains state
Nebraska: Louisiana Purchase, Great Plains state
North Dakota: Louisiana Purchase, Great Plains state
Ohio: Old Northwest (Historic Connecticut Western Reserve), Ohio River and Great Lakes state. Also a Northeastern Appalachian state in the SE.
South Dakota: Louisiana Purchase, Great Plains state
Wisconsin: Old Northwest, and Great Lakes state