Hinsdale is a village in Cook and DuPage counties in the U.S. state of Illinois. Hinsdale is a western suburb of Chicago. The population was 16,816 at the 2010 census, most of whom lived in DuPage County. The town's ZIP code is 60521. The town has a rolling, wooded topography, with a downtown, and is a 22-minute express train ride to downtown Chicago on the Burlington Northern line.