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 788 Main St 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
3.3
20 reviews
5 stars
10
4 stars
1
3 stars
1
2 stars
1
1 star
7
EE
En Egberon
Feb 26, 2026
5.0
I've had nothing but great experiences at the Dennis Post Office. As a local, I'm here pretty often shipping packages and picking up mail, and the staff is always welcoming and helpful. They move the line quickly, even during the summer rush when the Cape is packed with tourists.
The postmaster and clerks actually take the time to answer questions and make sure you're getting the best shipping rate. It's a small, no-nonsense location that gets the job done right. If you're in Dennis or visiting Cape Cod, this is the spot to handle all your shipping needs. Thanks for keeping it running smoothly!
CL
Christopher Lombardi
Jan 31, 2025
5.0
Everyone here is friendly and efficient!
MR
Megan Reinking
Jun 28, 2024
5.0
The gentleman who assisted me was extremely helpful - helped me make a decision that best suited my needs to get my package to my destination on time, clearly explaining different options and when they were likely to arrive. He was friendly and patient and took the time with me to be sure I was happy with my decision and knew what to do if my package did not arrive in time. Some of the best service I've ever had at a post office.
JJ
james
Jan 10, 2023
1.0
Woman at this post office is the absolute worst. Crabby attitude and gets off on being unhelpful. If she hates her job so much do something else. The way she treats some of the elderly customers there is atrocious. With other P.O. in the area with great staff I would avoid this location at all cost.
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.
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