MASON, MI Post Office

144 W ASH ST MASON, MI 48854 - 9998

Lot Parking Available

Phone 517-676-9400

Fax 517-676-0244

TTY 877-889-2457

MASON, MI Post Office Hours

  • Mon-Fri 9:00am - 5:00pm
  • Sat 9:00am - 12:00pm
  • Sun Closed


MASON Lobby Hours

  • Mon-Fri 5:30am - 5:30pm
  • Sat 5:30am - 4:30pm
  • Sun Closed

Last Collection Hours

  • Mon-Fri 4:00pm
  • Sat 3:00pm
  • Sun Closed

PO Box Access Hours

  • Mon-Fri 5:30am - 5:30pm
  • Sat 5:30am - 4:30pm
  • Sun Closed

MASON Pickup Services Hours

  • Mon-Fri 8:00am - 5:00pm
  • Sat 8:00am - 3:00pm
  • Sun Closed

Global Express Guaranteed Hours

  • Mon-Fri 5:00pm
  • Sat 12:00pm
  • Sun Closed

MASON Post Office On-Site Services

  • Bulk Mail Acceptance
  • Bulk Mail Account Balance
  • Bulk Mail New Permit
  • Burial Flags
  • Business Line
  • Business Reply Mail Account Balance
  • Business Reply Mail New Permit
  • Duck Stamps
  • General Delivery
  • Global Express GuaranteedĀ®
  • Label Broker (Retail)
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Money Orders (International)
  • PO Box Online
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • Priority Mail InternationalĀ®


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