Brand Certified
United States Postal Service
2.4(85 reviews)
Certified by United States Postal Service • Aug 16, 2026
Business Details
300 Mill St, Beloit, WI
53511, United States
Certified by United States Postal Service • Aug 16, 2026
(800) 275-8777
Certified by United States Postal Service • Aug 16, 2026
http://usps.com/postoffice
Certified by United States Postal Service • Aug 16, 2026
About
Certified by United States Postal Service • Aug 16, 2026
Post OfficeShipping ServiceCargo ServicePackaging Supply StoreLogistics ServiceMoney Order ServiceVisa and Passport OfficeUnited States Postal Service
Visit your local Post Office™ at 300 Mill 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 • Aug 16, 2026
Hours
Certified by United States Postal Service • Aug 16, 2026
Monday9:00 AM - 6:00 PM
Tuesday9:00 AM - 6:00 PM
Wednesday9:00 AM - 6:00 PM
Thursday9:00 AM - 6:00 PM
Friday9:00 AM - 6:00 PM
Saturday9:30 AM - 12:30 PM
SundayClosed
Products & Services
1 list · 35 items
Explore offerings from United States Postal Service on 300 Mill St in Beloit, with popular services available at this location.
Reviews
2.4
85 reviews
5 stars
26
4 stars
3
3 stars
4
2 stars
2
1 star
50
- VFVanessa FrancoJul 27, 20261.0I recently visited this post office to return some items, and unfortunately, I left feeling extremely disappointed and uncomfortable with the way I was treated. I was misinformed on the way I had to ship my package and instead of simply explaining the process or offering assistance, the clerk was extremely rude and dismissive toward me. What was even more concerning was the pattern I observed while standing in line. The clerk was polite, friendly, and helpful toward other customers, but her attitude noticeably changed when interacting with customers of color. As a woman of color, I felt that I was treated differently and that I was not given the same level of courtesy or assistance. When I asked for her name, she stated that it was "K." I sincerely hope management looks into this situation because no customer should feel discriminated against or treated with disrespect when seeking basic assistance. Everyone deserves to be treated equally and with respect. I have visited several offices before and have never encountered someone like her. Extremely disappointing.
- JBJaime R (BUFU500)Jul 25, 20263.0It all depends who helps you at the moment
- KPKeith PonceJun 26, 20261.0Came to get finger printed on a Saturday, website says to walk in no appointment needed. Was then told when I arrived that I needed to schedule an appointment because the person that does it didn't show up to work, literally what an employee said. Okay no problem, scheduled my appointment for the following Friday at a specific time. Showed up early told to wait until my time, literally no one in the queue. Someone came in late for their appointment they took them, then had to wait 30 minutes past my scheduled time. If you can go somewhere else it might be worth your time, unless you have time to waste. Side note about the atmosphere it was great hearing the staff fight with each other in the lobby and learn about the gossip they were sharing while I waited.
- MKMoe KcrazyJun 16, 20261.0Phone operator sucks
- VUVictoria UtzigMay 26, 20265.0Tywla is great! Very friendly, efficient, and answers all my questions everytime!
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 services are available at the United States Postal Service located at 300 Mill St, Beloit?
You can send mail, ship packages, purchase money orders, rent PO Boxes, apply for passports, buy gift cards, and more at this location.
Can I apply for a first-time U.S. passport at this post office?
Yes, this post office accepts first-time passport applications. Many locations also offer passport photo services by appointment.
Do I need an appointment to access passport services here?
Yes, most passport services require scheduling an appointment online, though limited walk-in hours may be offered at select locations.
What are the operating hours for this USPS location?
Monday through Friday, it is open 9:00 AM to 6:00 PM; Saturdays from 9:30 AM to 12:30 PM; it is closed on Sundays.
How can I get a PO Box at the Beloit post office?
You can apply for a PO Box online or in person by bringing two valid IDs and a completed application. Availability and prices vary by location.
Are PO Boxes accessible after regular business hours?
Most USPS locations offer 24/7 lobby access to PO Boxes, but it is best to confirm specific lobby hours with this location.
What nearby places can help me find or plan a visit to the United States Postal Service at 300 Mill St?
Nearby landmarks such as Post Office-Beloit, US Post Office, and Beloit City Hall can help orient you when visiting this USPS location.
What recreational or fitness centers are near the Beloit USPS?
Places like Beloit Barbell gym, Crossfit, and Pure Gravity Fitness yoga studio offer recreation and exercise options close to the post office.
Are there any real estate services close to the USPS in Beloit?
Yes, nearby you can find real estate agents and offices such as Casey Bellard, Colin Schindler Real Estate, Schindler Home Team, and RE/MAX Ignite.
Where can I find additional USPS resources or schedule services online?
You can schedule services and find resources through the USPS website and the provided online scheduler links.
Brand Certified Facts from United States Postal Service
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Certified August 16, 2026Yext Knowledge Graph
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