Bad news for (former) homeowners
This information is available in map form on Hotpads.com, but their map is not embeddeble. It is good for research purposes (to find current foreclosures). A full search would involve a trip to the county land records office to build a database from their records).
Try this Google map trick:
Search for an address in Google maps, and add the word 'foreclosure'
You will get a map like this:
View Larger Map
As far as I can tell, these are just foreclosed properties that are for sale, many more are likely in various stages of foreclosure that are not this advanced.
There is also a 'foreclosure' checkbox under 'show options' on the left side of the Google map page, but though this worked for me last week I am not having any luck with it this week. The result is the same, however.