Sorry to inform you that the 3-bedroom, 1-bath home listed for sale at 415 Circle Ave in Hinsdale is not in Hinsdale. It's not even in an unincorporated area that has a Hinsdale mailing address.
It is in an unincorporated area, however, and the mailing address is Willowbrook - a very different community than Hinsdale. The correct ZIP code is 60527, rather than 60521 as stated in the listing.
The property is also listed in the vacant land category of the MRED Multiple Listing Service - also as being in Hinsdale.
If the property were in Hinsdale there's little chance that it would have sat on the market for over 100 days, as this listing has, at this price.
Real estate agents, in theory, are fined by the MLS for making this type of "mistake." In practice, it's often a deliberate misstatement rather than an honest mistake, and the fines are infrequent enough that they don't deter this type of behavior very effectively.
Deploying address validation software is common today for many businesses, large and small, and it's not difficult to do. If you examine the Redfin URLs for the listing, you'll note the correct mailing city and ZIP code. One has to wonder why the MLS doesn't institute automated procedures to avert this sort of "mistake."
What you should take away from this post is a healthy skepticism about any claim you see in a real estate listing - even one as basic as the address of the property..