Certified by United States Postal Service • Apr 12, 2026
Post OfficeCargo ServiceLogistics ServiceShipping ServicePackaging Supply StoreMoney Order ServiceUnited States Postal Service
Visit your local Post Office™ at 823 Arthur 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 • Apr 12, 2026
Certified by United States Postal Service • Apr 12, 2026
Monday8:30 AM - 5:00 PM
Tuesday8:30 AM - 5:00 PM
Wednesday8:30 AM - 5:00 PM
Thursday8:30 AM - 5:00 PM
Friday8:30 AM - 5:00 PM
Saturday10:00 AM - 12:00 PM
SundayClosed
Reviews
2.4
185 reviews
5 stars
50
4 stars
11
3 stars
5
2 stars
10
1 star
109
TG
The German
5 days ago
5.0
Very helpful
BB
B
5 days ago
1.0
I would do a half star if it would let me. should have never moved from Nampa we had it so good with the Nampa post office. In our almost year experience with the Caldwell one has been absolutely terrible. You might as well try UPS or go to Nampa unless you want to deal with rude, unresponsive, non caring, confused and ignorant people. Postmaster is worthless. It has been HELL with these people. thanks a lot for ur terrible customer service Caldwell.
JK
Jessica K
Mar 16, 2026
3.0
It would be cool if you could remind your delivery people that "Handle with care" doesn't mean kicking the box over.
KT
Katherine Taylor
Mar 14, 2026
4.0
My problem is neighbor keeps blocking mailbox. When code inforcement comes out I am the problem, that neighbor said she wants to pray there. Hope post office can offer some help with this as other options have failed
DH
Danika Hartman
Feb 19, 2026
1.0
honestly disappointed to say the least. seems like they’re too lazy to put the package on my doorstep, so instead they shoved it in my slotted mail box that’s not meant for packages to go through. the box was completely tore up and ruined.
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 can I find at the United States Postal Service located at 823 Arthur St?
You can send mail and ship packages, obtain money orders, rent Post Office™ boxes, apply for passports, purchase 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 many locations also take passport photos. Be sure to complete and print your passport application form before applying.
Do I need an appointment for passport services at this location?
Yes, most Post Offices require you to schedule an appointment through their online scheduler for passport services. Limited walk-in hours are available at select locations.
Does this Post Office provide passport photo services and what is the cost?
Yes, you can have your passport photo taken here by appointment. The current fee for a passport photo at USPS is $15.
How can I get a PO Box at this Post Office, and can I reserve one online?
You can apply for a PO Box online or in person. To reserve one online, visit https://www.usps.com/manage/po-boxes.htm and follow the instructions.
What are the operating hours of the United States Postal Service at 823 Arthur St?
Monday through Friday, 8:30 AM to 5:00 PM; Saturdays 10:00 AM to 12:00 PM; closed on Sundays.
Can I access my PO Box at this location after normal business hours?
Most USPS locations offer 24/7 access to PO Boxes in the lobby, but access hours may vary. Please check with your local Post Office for specific lobby hours.
What nearby places can I visit around the Post Office at 823 Arthur St in Caldwell?
Nearby you can find beauty salons like So Glam Beauty Bar and Indian Creek Hair & Nails, restaurants such as Casa Anejo and Keystone Pizza, and entertainment like Caldwell Luxe Reel Theatre.
Is there a nearby transportation or rental service close to the Post Office to assist in package pickup or delivery?
Yes, Penske Truck Rental is nearby, which can help with moving or transportation needs for shipments or big packages.
Are there places close to the Post Office where I can relax or get beauty treatments?
Yes, nearby there are several beauty and spa places such as So Glam Beauty Bar, Body Boost medical spa, and Sadie's Skin Studio LLC where you can enjoy beauty treatments after visiting the Post Office.
Brand Certified Facts from United States Postal Service
This information is certified by United States Postal Service and published from the brand's official system of record. Data is distributed through an enterprise-grade knowledge management platform. Learn more about our data sources
Certified April 12, 2026Yext Knowledge Graph
Address
Categories
Geo coordinates
Legal business name
Hours of operation
Phone number
Official website
Syndication Network
Approved business data is pushed to 100+ publishers, including: