Wonder Lake Post Office

NOTICE: The Postal Service is an essential government service, and will remain open wherever possible.

3710 E Wonder Lake Rd, Wonder Lake, IL 60097

Contact Numbers

Phone: 815-653-7771
Fax: 847-653-6311
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours

Lobby Hours
PO Box Access Available

Monday 6:00am - 6:00pm
Tuesday 6:00am - 6:00pm
Wednesday 6:00am - 6:00pm
Thursday 6:00am - 6:00pm
Friday 6:00am - 6:00pm
Saturday 6:00am - 2:00pm
Sunday Closed

Last Collection Times

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

Bulk Mail Acceptance Hours

Monday 9:00am - 2:00pm
Tuesday 9:00am - 2:00pm
Wednesday 9:00am - 2:00pm
Thursday 9:00am - 2:00pm
Friday 9:00am - 2:00pm
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)
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • Sure Money
  • 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:

5016 Barnard Mill Rd
2.0 miles away

4530 W Crystal Lake Rd
2.8 miles away

5510 Mill St
4.2 miles away

Spring Grove
2410 Westward Dr
4.6 miles away


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I would like to get the names associated with the address of 4814 East Wonder Lake Rd. Wonder Lake, IL 60097. The owner of the property is Shannon Bodner. i would like to get the name of the tenant who lives there as a witness in a trial. You can contact my friend, Bill, at 630-750-5524. Thanks, Connie


No mail delivery again due to weather? At least 3 or 4 times a year in Wonder Lake mail isn't delivered on a normal Monday-Saturday due to weather or some other issue. I never had this problem any were else I have lived in McHenry county IL, ok maybe 1 day a year when I lived on a farm in the middle of nowhere (road was closed). USPS mail vehicles are aloud to use tire chains on public roads so I don't see the issue. Is the USPS In Wonder lake understaffed? Borrow some staff from McHenry or Ringwood to get the mail delivered. I understand now is still considered around the holydays with New Years coming in a couple days.

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