Post offices in the county of St. Clair, MI
Use this page to find the post offices in your county that open earliest or stay open latest. The open hours listed are for the post office's retail hours, which means the hours in which a postal service employee is available at the counter to help with mailings and other services. Oftentimes lobbies are open extended hours, and you are able to check your PO box, drop off packages, or use the self-service APC machine to buy postage. The list below is first sorted alphabetically by city, then by post office name. Street View photos of post offices are shown when available. Please contact us if you find an error, so that we can correct it.
Algonac Post Office is currently closed
For parking and list of services available, visit the official USPS page for post this post office location.
- Open hours
Day Open Close Monday 8:30 AM 5:00 PM Tuesday 8:30 AM 5:00 PM Wednesday 8:30 AM 5:00 PM Thursday 8:30 AM 5:00 PM Friday 8:30 AM 5:00 PM Saturday 8:30 AM 12:00 PM Sunday Closed - Buy postage online
- Discounted USPS and UPS rates of up to 84%.
- Promo code
- STAMPS100
$100 value
Phone: 810-794-3821
Fax: 810-794-4397
Allenton Post Office is currently closed
For parking and list of services available, visit the official USPS page for post this post office location.
- Open hours
Day Open Close Monday 9:30 AM 12:30 PM 1:00 PM 4:00 PM Tuesday 9:30 AM 12:30 PM 1:00 PM 4:00 PM Wednesday 9:30 AM 12:30 PM 1:00 PM 4:00 PM Thursday 9:30 AM 12:30 PM 1:00 PM 4:00 PM Friday 9:30 AM 12:30 PM 1:00 PM 4:00 PM Saturday 8:00 AM 11:30 AM Sunday Closed - Buy postage online
- Discounted USPS and UPS rates of up to 84%.
- Promo code
- STAMPS100
$100 value
Phone: 810-395-4957
Fax: 810-395-7696
Anchorville Post Office is currently closed
For parking and list of services available, visit the official USPS page for post this post office location.
- Open hours
Day Open Close Monday 10:00 AM 12:30 PM 1:30 PM 5:00 PM Tuesday 10:00 AM 12:30 PM 1:30 PM 5:00 PM Wednesday 10:00 AM 12:30 PM 1:30 PM 5:00 PM Thursday 10:00 AM 12:30 PM 1:30 PM 5:00 PM Friday 10:00 AM 12:30 PM 1:30 PM 5:00 PM Saturday 10:00 AM 12:00 PM Sunday Closed - Buy postage online
- Discounted USPS and UPS rates of up to 84%.
- Promo code
- STAMPS100
$100 value
Phone: 586-725-9332
Avoca Post Office is currently closed
For parking and list of services available, visit the official USPS page for post this post office location.
- Open hours
Day Open Close Monday 9:00 AM 12:30 PM 1:30 PM 4:00 PM Tuesday 9:00 AM 12:30 PM 1:30 PM 4:00 PM Wednesday 9:00 AM 12:30 PM 1:30 PM 4:00 PM Thursday 9:00 AM 12:30 PM 1:30 PM 4:00 PM Friday 9:00 AM 12:30 PM 1:30 PM 4:00 PM Saturday 8:00 AM 11:00 AM Sunday Closed - Buy postage online
- Discounted USPS and UPS rates of up to 84%.
- Promo code
- STAMPS100
$100 value
Phone: 810-324-2230
Fax: 810-324-2008
Capac Post Office is currently closed
For parking and list of services available, visit the official USPS page for post this post office location.
- Open hours
Day Open Close Monday 8:30 AM 4:30 PM Tuesday 8:30 AM 4:30 PM Wednesday 8:30 AM 4:30 PM Thursday 8:30 AM 4:30 PM Friday 8:30 AM 4:30 PM Saturday 9:30 AM 12:00 PM Sunday Closed - Buy postage online
- Discounted USPS and UPS rates of up to 84%.
- Promo code
- STAMPS100
$100 value
Phone: 810-395-7090
Fax: 810-395-2371
China Twp Carrier Annex Post Office does not have retail counter services
For parking and list of services available, visit the official USPS page for post this post office location.
- Open hours
Day Open Close - Buy postage online
- Discounted USPS and UPS rates of up to 84%.
- Promo code
- STAMPS100
$100 value
Phone: 810-329-4103
Fax: 810-329-3925
Emmett Post Office is currently closed
For parking and list of services available, visit the official USPS page for post this post office location.
- Open hours
Day Open Close Monday 9:00 AM 12:30 PM 1:30 PM 4:00 PM Tuesday 9:00 AM 12:30 PM 1:30 PM 4:00 PM Wednesday 9:00 AM 12:30 PM 1:30 PM 4:00 PM Thursday 9:00 AM 12:30 PM 1:30 PM 4:00 PM Friday 9:00 AM 12:30 PM 1:30 PM 4:00 PM Saturday 8:00 AM 12:00 PM Sunday Closed - Buy postage online
- Discounted USPS and UPS rates of up to 84%.
- Promo code
- STAMPS100
$100 value
Phone: 810-384-1720
Fax: 810-384-1402
Fair Haven Post Office is currently closed
For parking and list of services available, visit the official USPS page for post this post office location.
- Open hours
Day Open Close Monday 9:00 AM 4:30 PM Tuesday 9:00 AM 4:30 PM Wednesday 9:00 AM 4:30 PM Thursday 9:00 AM 4:30 PM Friday 9:00 AM 4:30 PM Saturday 9:00 AM 12:00 PM Sunday Closed - Buy postage online
- Discounted USPS and UPS rates of up to 84%.
- Promo code
- STAMPS100
$100 value
Phone: 586-725-9674
Fax: 586-725-6016
Birchwood Mall Post Office is currently closed
For parking and list of services available, visit the official USPS page for post this post office location.
- Open hours
Day Open Close Monday 10:00 AM 5:00 PM Tuesday 10:00 AM 5:00 PM Wednesday 10:00 AM 5:00 PM Thursday 10:00 AM 5:00 PM Friday 10:00 AM 5:00 PM Saturday 10:00 AM 2:00 PM Sunday Closed - Buy postage online
- Discounted USPS and UPS rates of up to 84%.
- Promo code
- STAMPS100
$100 value
Phone: 810-385-7918
Fax: 810-385-7642
Goodells Post Office is currently closed
For parking and list of services available, visit the official USPS page for post this post office location.
- Open hours
Day Open Close Monday 9:30 AM 12:00 PM 1:00 PM 4:30 PM Tuesday 9:30 AM 12:00 PM 1:00 PM 4:30 PM Wednesday 9:30 AM 12:00 PM 1:00 PM 4:30 PM Thursday 9:30 AM 12:00 PM 1:00 PM 4:30 PM Friday 9:30 AM 12:00 PM 1:00 PM 4:30 PM Saturday 8:00 AM 12:00 PM Sunday Closed - Buy postage online
- Discounted USPS and UPS rates of up to 84%.
- Promo code
- STAMPS100
$100 value
Phone: 810-325-1650
Fax: 810-325-1657
Harsens Island Post Office is currently closed
For parking and list of services available, visit the official USPS page for post this post office location.
- Open hours
Day Open Close Monday 10:00 AM 2:00 PM Tuesday 10:00 AM 2:00 PM Wednesday 10:00 AM 2:00 PM Thursday 10:00 AM 2:00 PM Friday 10:00 AM 2:00 PM Saturday 9:00 AM 12:30 PM Sunday Closed - Buy postage online
- Discounted USPS and UPS rates of up to 84%.
- Promo code
- STAMPS100
$100 value
Phone: 810-748-9979
Fax: 810-748-8932
Jeddo Post Office is currently closed
For parking and list of services available, visit the official USPS page for post this post office location.
- Open hours
Day Open Close Monday 1:00 PM 5:00 PM Tuesday 1:00 PM 5:00 PM Wednesday 1:00 PM 5:00 PM Thursday 1:00 PM 5:00 PM Friday 1:00 PM 5:00 PM Saturday 8:00 AM 11:00 AM Sunday Closed - Buy postage online
- Discounted USPS and UPS rates of up to 84%.
- Promo code
- STAMPS100
$100 value
Phone: 810-327-6500
Fax: 810-327-0007
Marine City Post Office is currently closed
For parking and list of services available, visit the official USPS page for post this post office location.
- Open hours
Day Open Close Monday 10:00 AM 4:30 PM Tuesday 10:00 AM 4:30 PM Wednesday 10:00 AM 4:30 PM Thursday 10:00 AM 4:30 PM Friday 10:00 AM 4:30 PM Saturday 9:30 AM 12:00 PM Sunday Closed - Buy postage online
- Discounted USPS and UPS rates of up to 84%.
- Promo code
- STAMPS100
$100 value
Phone: 810-765-9311
Fax: 810-765-5193
Marysville Post Office is currently closed
For parking and list of services available, visit the official USPS page for post this post office location.
- Open hours
Day Open Close Monday 8:30 AM 5:00 PM Tuesday 8:30 AM 5:00 PM Wednesday 8:30 AM 5:00 PM Thursday 8:30 AM 5:00 PM Friday 8:30 AM 5:00 PM Saturday 9:00 AM 12:00 PM Sunday Closed - Buy postage online
- Discounted USPS and UPS rates of up to 84%.
- Promo code
- STAMPS100
$100 value
Phone: 810-364-7922
Fax: 810-364-8436
Memphis Post Office is currently closed
For parking and list of services available, visit the official USPS page for post this post office location.
- Open hours
Day Open Close Monday 9:00 AM 11:00 AM 12:00 PM 4:30 PM Tuesday 9:00 AM 11:00 AM 12:00 PM 4:30 PM Wednesday 9:00 AM 11:00 AM 12:00 PM 4:30 PM Thursday 9:00 AM 11:00 AM 12:00 PM 4:30 PM Friday 9:00 AM 11:00 AM 12:00 PM 4:30 PM Saturday 10:00 AM 12:00 PM Sunday Closed - Buy postage online
- Discounted USPS and UPS rates of up to 84%.
- Promo code
- STAMPS100
$100 value
Phone: 810-392-2200
Fax: 810-392-3220
North Street Post Office is currently closed
For parking and list of services available, visit the official USPS page for post this post office location.
- Open hours
Day Open Close Monday 10:00 AM 2:00 PM Tuesday 10:00 AM 2:00 PM Wednesday 10:00 AM 2:00 PM Thursday 10:00 AM 2:00 PM Friday 10:00 AM 2:00 PM Saturday 9:30 AM 11:30 AM Sunday Closed - Buy postage online
- Discounted USPS and UPS rates of up to 84%.
- Promo code
- STAMPS100
$100 value
Phone: 810-385-3731
Fax: 810-385-1869
Port Huron Post Office is currently closed
For parking and list of services available, visit the official USPS page for post this post office location.
- Open hours
Day Open Close Monday 8:30 AM 5:30 PM Tuesday 8:30 AM 5:30 PM Wednesday 8:30 AM 5:30 PM Thursday 8:30 AM 5:30 PM Friday 8:30 AM 5:30 PM Saturday 9:00 AM 3:00 PM Sunday Closed - Buy postage online
- Discounted USPS and UPS rates of up to 84%.
- Promo code
- STAMPS100
$100 value
Phone: 810-989-4830
Fax: 810-989-4810
Saint Clair Post Office is currently closed
For parking and list of services available, visit the official USPS page for post this post office location.
- Open hours
Day Open Close Monday 8:30 AM 5:00 PM Tuesday 8:30 AM 5:00 PM Wednesday 8:30 AM 5:00 PM Thursday 8:30 AM 5:00 PM Friday 8:30 AM 5:00 PM Saturday 9:00 AM 1:30 PM Sunday Closed - Buy postage online
- Discounted USPS and UPS rates of up to 84%.
- Promo code
- STAMPS100
$100 value
Phone: 810-329-4555
Fax: 810-329-1050
Smiths Creek Post Office is currently closed
For parking and list of services available, visit the official USPS page for post this post office location.
- Open hours
Day Open Close Monday 10:00 AM 2:00 PM Tuesday 10:00 AM 2:00 PM Wednesday 10:00 AM 2:00 PM Thursday 10:00 AM 2:00 PM Friday 10:00 AM 2:00 PM Saturday 9:00 AM 1:00 PM Sunday Closed - Buy postage online
- Discounted USPS and UPS rates of up to 84%.
- Promo code
- STAMPS100
$100 value
Phone: 810-367-3840
Fax: 810-367-7027
Yale Post Office is currently closed
For parking and list of services available, visit the official USPS page for post this post office location.
- Open hours
Day Open Close Monday 10:00 AM 4:30 PM Tuesday 10:00 AM 4:30 PM Wednesday 10:00 AM 4:30 PM Thursday 10:00 AM 4:30 PM Friday 10:00 AM 4:30 PM Saturday 10:00 AM 12:00 PM Sunday Closed - Buy postage online
- Discounted USPS and UPS rates of up to 84%.
- Promo code
- STAMPS100
$100 value
Phone: 810-462-9020
Fax: 810-387-9025