Certified by United States Postal Service • Mar 01, 2026
Post OfficeCargo ServiceLogistics ServiceShipping ServicePackaging Supply StoreMoney Order ServiceUnited States Postal Service
Visit your local Post Office™ at 58 MT Highway 359 to find everything you need to send mail and ship packages. Explore our other products and services like money orders, Post Office™ boxes, passports, gift cards, and more
Location
Certified by United States Postal Service • Mar 01, 2026
Certified by United States Postal Service • Mar 01, 2026
Reviews
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FA
Farmers for Truth (Big Al)
Feb 26, 2026
5.0
The Cardwell post office was clean and tidy. They are open from 7:45am to 11:45pm M-F 7:45am to 8:45am Saturday
Alissa is so nice and very helpful. I was missing a package from silver star and she was willing to go the extra mile to help me find it. Tracking showed it was in cardwell but she had sent it back to Billings. So she took my number and told me she would call me if it came back. she called Billings and they had it so she said it will be back in the morning. I was very pleased with all her help and im 100% positive the people of Cardwell love her as their mail lady.
Frequently Asked Questions About United States Postal Service
Can I get a passport application at this Post Office?
Yes, Thousands of Post Offices™ accept first-time passport applications for the U.S. Department of State. Most of those locations can also take your passport photo. Please complete and print your passport application form before you apply.
Is an appointment needed for passport services?
Most Post Offices that offer passport services have set hours, and you'll need to schedule an appointment using our online scheduler. We also offer limited Passport walk-in hours at select locations.
Does this location take the photo needed for passports?
For first-time passport and photo services, please make an appointment using our online scheduler.
What is the cost to take a passport photo?
The current fee for a passport photo at USPS is $15.
When does this location do walk-in passports?
We offer limited Passport walk-in hours at select locations.
Can I get a PO Box online?
Yes, you can search for available PO Boxes and reserve one online at https://www.usps.com/manage/po-boxes.htm. The process is quick and secure, and you'll receive instructions for completing your setup in person.
How much is a small PO Box?
PO Box prices vary by location. You can check exact pricing for your area by visiting https://www.usps.com/manage/po-boxes.htm and entering your ZIP Code.
Can you get to the PO Boxes in the lobby after hours?
Most USPS locations offer 24/7 access to PO Boxes in the lobby. Access hours may vary by location, so check with your local Post Office for specific lobby hours.
How can I get a PO Box?
You can apply for a PO Box online or in person at your local Post Office. Just bring two valid forms of ID and your completed application if applying in person. To start online, visit https://www.usps.com/manage/po-boxes.htm.
What time can I check my PO Box weekly and on weekends?
You can check your PO Box during lobby hours, which often include extended hours or 24/7 access. Weekend access may vary. Check with your local Post Office for exact times.
What products and services are available at the United States Postal Service location at 58 MT Highway 359?
This location offers mail and package shipping, money orders, PO Boxes, passport services, gift cards, and more.
Can I apply for a U.S. passport at this Post Office?
Yes, this Post Office accepts first-time passport applications and can take passport photos by appointment.
Do I need an appointment to use passport services here?
Most passport services require an appointment using the online scheduler, though limited walk-in hours are available at select locations.
What are the operating hours of this Post Office?
The Post Office is open Monday through Friday from 7:45 AM to 11:45 AM and is closed on weekends.
Can I rent a PO Box at this United States Postal Service location?
Yes, you can apply for a PO Box online or in person. Online reservations and pricing are available at the USPS website.
Is after-hours access available for PO Boxes here?
Most USPS locations provide 24/7 lobby access to PO Boxes, but access hours may vary. Please check with this Post Office for exact times.
Where is the United States Postal Service located in Cardwell, MT?
It is located at 58 MT Highway 359 in Cardwell, Montana, ZIP code 59721.
What nearby places can help me find the Post Office?
Nearby landmarks include Range Market, Cardwell School, and the Cardwell Store & RV Park, which can help you locate the Post Office.
Are there nearby dining options close to the Post Office for a quick meal?
Yes, you can visit Moose Crossing Sweets and Gifts café or Rollin Smoke food truck, both located near the Post Office.
Can I combine a visit to the Post Office with local sightseeing?
Absolutely, the Lewis and Clark Expedition Campsite Historical Marker and Boulder River landmark are near the Post Office and worth visiting.
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