FLINTSTONE, MD Post Office

21600 NATIONAL PIKE NE FLINTSTONE, MD 21530 - 9998

Lot Parking Available

Phone 301-478-2255

Fax 301-478-3109

TTY 877-889-2457

FLINTSTONE, MD Post Office Hours

  • Mon-Fri 8:45am - 12:30pm 1:30pm - 4:15pm
  • Sat 8:00am - 12:00pm
  • Sun Closed


FLINTSTONE Lobby Hours

  • Mon-Sun 12:01am - 11:59pm

Last Collection Hours

  • Mon-Fri 4:15pm
  • Sat 12:00pm
  • Sun Closed

PO Box Access Hours

  • Mon-Sun 12:01am - 11:59pm

FLINTSTONE Pickup Services Hours

  • Mon-Fri 8:45am - 12:30pm 1:30pm - 4:15pm
  • Sat 8:00am - 12:00pm
  • Sun Closed

FLINTSTONE Post Office On-Site Services

  • Business Line
  • Duck Stamps
  • General Delivery
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Money Orders (International)
  • PO Box Online
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • Priority Mail International┬«