Usps Mail Holidays 2025 2025. The post office will be closed on the days highlighted in red. Usps is closed for 11 holidays in 2025, though additional days may be added throughout the year to account for days of mourning and other exceptions.

Here is a full list of days when the post office will be closed due to holidays & events. Additionally, the postal service will suspend regular mail deliveries, retail services and administrative office activity on thursday, jan.