Union Lake Post Office

7650 Cooley Lake Rd, Union Lake, MI 48387

Contact Numbers

Phone: 248-363-5202
Fax: 248-360-1534
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours

Lobby Hours
PO Box Access Available

Monday 24 hours
Tuesday 24 hours
Wednesday 24 hours
Thursday 24 hours
Friday 24 hours
Saturday 24 hours
Sunday 24 hours

Last Collection Times

Monday 5:30pm
Tuesday 5:30pm
Wednesday 5:30pm
Thursday 5:30pm
Friday 5:30pm
Saturday 2:00pm
Sunday Closed

Bulk Mail Acceptance Hours

Monday 9:30am - 3:00pm
Tuesday 9:30am - 3:00pm
Wednesday 9:30am - 3:00pm
Thursday 9:30am - 3:00pm
Friday 9:30am - 3:00pm
Saturday Closed
Sunday Closed

*This facility does not process US Passports applications or renewals. Check nearby locations below.

  • 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
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Money Orders (International)
  • Packaged Stamps
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • Lot Parking

Visit our Links Page for Holiday Schedule, Change of Address, Hold Mail/Stop Delivery, PO Box rentals and fees, and Available Jobs.

*Please call to verify information. Is anything incorrect? Let us know here

Nearby Post Offices:

Waterford Carrier Annex
5340 Highland Rd
2.4 miles away

Walled Lake
995 N Pontiac Trl
3.5 miles away

5036 Dixie Hwy
3.7 miles away

Keego Harbor
2851 Orchard Lake Rd
3.8 miles away


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Went to this location at 9:15am on 3-12. No post office personnel working the lobby. Supposed to open at 9am. Lots of angry people heading to UPS from here.


When they say they are open Retail Hours until 6:00pm M-F don't believe it. Today they were closed tighter than a virgins ### by 5:30pm. 02/05/15


The Union Lake post office on Cooley Lake Road is typical of many in our Waterford area. Folks appear to be hired based on something other than either skill or customer service aptitudes. While some work extra hard to make up for the slow counter help, the post master appears unable to make basic improvements. Drop boxes are almost always jammed, counters fill with packages while counter personnel just watch them build up, and the phone rings without being answered. Apparently she does not have the knowledge that a private firm manager would have to place a phone on an extension cord so it can be answered during normal business hours. The post office is a great place to work if you want high pay without having to use your brain. Instead of trying to locate a working post office we will use FedEx instead moving forward.

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