Post offices in the county of Cass, 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.

Street View Image of Cassopolis Post Office in Cassopolis, MI

Cassopolis Post Office is currently closed

For parking and list of services available, visit the official USPS page for post this post office location.

Post office address
129 S Rowland St Cassopolis , MI 49031-9998

Get directions

Open hours
Day Open Close
Monday 9:00 AM 4:45 PM
Tuesday 9:00 AM 4:45 PM
Wednesday 9:00 AM 4:45 PM
Thursday 9:00 AM 4:45 PM
Friday 9:00 AM 4:45 PM
Saturday 9:30 AM 11:30 AM
Sunday Closed

Phone: 269-445-8421

  • Stamps.com logo
    Buy postage online
    Discounted USPS and UPS rates of up to 84%.
    Promo code
    STAMPS100
    $100 value
Street View Image of Dowagiac Post Office in Dowagiac, MI

Dowagiac Post Office is currently closed

For parking and list of services available, visit the official USPS page for post this post office location.

Post office address
202 Commercial St Dowagiac , MI 49047-9998

Get directions

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 10:00 AM 12:00 PM
Sunday Closed

Phone: 269-782-6300

  • Stamps.com logo
    Buy postage online
    Discounted USPS and UPS rates of up to 84%.
    Promo code
    STAMPS100
    $100 value
Street View Image of Edwardsburg Post Office in Edwardsburg, MI

Edwardsburg Post Office is currently closed

For parking and list of services available, visit the official USPS page for post this post office location.

Post office address
68926 Cass St Edwardsburg , MI 49112-7632

Get directions

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 9:30 AM 11:30 AM
Sunday Closed
  • Stamps.com logo
    Buy postage online
    Discounted USPS and UPS rates of up to 84%.
    Promo code
    STAMPS100
    $100 value
Street View Image of Jones Post Office in Jones, MI

Jones Post Office is currently closed

For parking and list of services available, visit the official USPS page for post this post office location.

Post office address
12081 M 60 Jones , MI 49061-8768

Get directions

Open hours
Day Open Close
Monday 12:00 PM 4:00 PM
Tuesday 12:00 PM 4:00 PM
Wednesday 12:00 PM 4:00 PM
Thursday 12:00 PM 4:00 PM
Friday 12:00 PM 4:00 PM
Saturday 8:30 AM 10:30 AM
Sunday Closed
  • Stamps.com logo
    Buy postage online
    Discounted USPS and UPS rates of up to 84%.
    Promo code
    STAMPS100
    $100 value
Street View Image of Marcellus Post Office in Marcellus, MI

Marcellus Post Office is currently closed

For parking and list of services available, visit the official USPS page for post this post office location.

Post office address
203 S Centre St Marcellus , MI 49067-8758

Get directions

Open hours
Day Open Close
Monday 10:00 AM 1:00 PM
2:00 PM 4:30 PM
Tuesday 10:00 AM 1:00 PM
2:00 PM 4:30 PM
Wednesday 10:00 AM 1:00 PM
2:00 PM 4:30 PM
Thursday 10:00 AM 1:00 PM
2:00 PM 4:30 PM
Friday 10:00 AM 1:00 PM
2:00 PM 4:30 PM
Saturday 10:00 AM 12:00 PM
Sunday Closed
  • Stamps.com logo
    Buy postage online
    Discounted USPS and UPS rates of up to 84%.
    Promo code
    STAMPS100
    $100 value
Street View Image of Union Post Office in Union, MI

Union Post Office is currently closed

For parking and list of services available, visit the official USPS page for post this post office location.

Post office address
15479 Us Highway 12 Apt A Union , MI 49130-8732

Get directions

Open hours
Day Open Close
Monday 9:00 AM 4:00 PM
Tuesday 9:00 AM 4:00 PM
Wednesday 9:00 AM 4:00 PM
Thursday 9:00 AM 4:00 PM
Friday 9:00 AM 4:00 PM
Saturday 9:00 AM 12:00 PM
Sunday Closed

Phone: 269-641-5180

  • Stamps.com logo
    Buy postage online
    Discounted USPS and UPS rates of up to 84%.
    Promo code
    STAMPS100
    $100 value
Street View Image of Vandalia Post Office in Vandalia, MI

Vandalia Post Office is currently closed

For parking and list of services available, visit the official USPS page for post this post office location.

Post office address
17899 MIll St Vandalia , MI 49095-9501

Get directions

Open hours
Day Open Close
Monday 12:00 PM 4:00 PM
Tuesday 12:00 PM 4:00 PM
Wednesday 12:00 PM 4:00 PM
Thursday 12:00 PM 4:00 PM
Friday 12:00 PM 4:00 PM
Saturday 8:30 AM 10:30 AM
Sunday Closed
  • Stamps.com logo
    Buy postage online
    Discounted USPS and UPS rates of up to 84%.
    Promo code
    STAMPS100
    $100 value