No, there is no regular USPS mail delivery on Martin Luther King Jr. Day, because it is a federal holiday and post offices are closed.

Quick Scoop: Mail on MLK Day

  • USPS:
    • No regular mail delivery or pickup on MLK Day.
    • Post office retail counters and PO Box lobbies are closed in most locations.
* Priority Mail Express is usually the only USPS service that still delivers that day.
  • FedEx:
    • FedEx generally runs most services on MLK Day, sometimes with modified hours or service levels (especially for FedEx Express).
  • UPS:
    • Many UPS services pause regular pickups and deliveries on MLK Day, with only urgent/“critical” services available.

So if you are waiting on normal letters or standard USPS packages, they will not arrive on MLK Day and should move again the following business day.

Information gathered from public forums or data available on the internet and portrayed here.