Post Offices in the United States will be closed on Christmas Day and on New Year’s Day. Some Post Offices may also have limited hours on Christmas Eve, Monday, December 24, 2018.
All Post Offices will be open and regular mail delivery will resume after the holidays on December 26, 2018 and January 2, 2019.
In addition, some Post Offices may have extended hours leading up to the holidays.
The Postal Service also noted that Post Offices will be open during regular business hours on New Year’s Eve,, but advised customers to “always check with their local Post Offices for hours of operation.”
The USPS also advised customers:
Blue collection boxes with final collection times before 12 p.m. (noon) will not be affected by early closing on Dec. 24. If a box has a final collection time after 12 p.m., its mail may be picked up earlier. For mail pickup on Dec. 24, please put your mail into blue collection boxes by noon regardless of the final collection times posted on the box. As a reminder, blue collection boxes are not serviced on Sundays.
Customers who have items to mail after the scheduled pick-up times on Dec. 24 should visit the Postal Locator on tools.usps.com to find local Post Offices which may be open late.
You can find the announcement on the USPS website.