The following information is from a mailer via APWU:
During the course of 2013 and 2014 the Postal Service plans to close hundreds of locations. The first phase began in July 2012 and involved 48 facilities. The USPS halted closures during the busy mailing season of September through December 2012, but resumed the first phase closure plans in January 2013. For 2013, a total of 82 consolidations are planned, 18 of which are accelerated from Phase 2 of the plan, scheduled for early 2014. Five new consolidations were added to the original plan, while there are an additional 58 facilities currently under review for potential acceleration from the Phase 2 plan into 2013. The USPS again plans to halt the closures after July 2013 for the busy mailing season through the end of the year, and then resume Phase 2 in early 2014.
The graphic below shows the planned consolidations and closures for 2013 by month and by postal area.