High Quality Content by WIKIPEDIA articles! Hinsdale is an affluent western suburb of Chicago, Illinois; a small portion of the eastern part of the village is located in Cook County, and the rest of the village is located in DuPage County in the U.S. state of Illinois. The population was 17,349 at the 2000 census. The town`s ZIP code is 60521. The town has a rolling, wooded topography, with a quaint downtown and is a 22-minute express train ride to downtown Chicago on the Burlington Northern train line. It is listed in the top 1% of wealthiest towns in Illinois, and is known locally for its beautiful residences and teardown culture, of which new rebuilds have taken 30% of homes in the village. There is a rich mix of housing in the village, from old farmhouses to newer mansions, one of which currently under construction is over 28,000 square feet.