USPS Closures Map
Due to financial difficulties the US Postal Service is looking at closing post offices across the country. A list of nearly 700 potential closing candidates has been sent to the independent Postal Regulatory Commission for review.
I ran the addresses of the potential closures through the batchconvert geocoder to get the latitude and longitudes of the post offices listed for closure. You can use the resulting map to check if your local post office is slated for closure.
Geocoding is still not an exact science so there could be errors in the locations. Even though there are nearly 700 markers on the map it still loads fairly quickly without using any map marker clustering.