PO Box 5855 in Carol Stream, IL: What It Actually Is
It's a Post Office Box at the Carol Stream Station on Schiller Road. That's about all there is to it. People tend to overcomplicate things when they search for a specific PO Box number because they assume there's a layer of mystery underneath. There isn't. The Carol Stream Post Office is located at 601 N Schiller St, Carol Stream, IL 60188. PO Box 5855 is one of many boxes there. If you're looking at this address because you received mail from it or are trying to verify who operates out of it, you should know upfront that USPS does not publish the names or contact information tied to individual PO Boxes. That's by design. Privacy policy, nothing more. I've dealt with people trying to track down who occupies a specific box for all kinds of reasons. Some want to find a business contact. Some are trying to serve legal papers. A few are just curious about spam senders. In every case, the answer comes down to the same thing: you can't get that information through USPS without a court order or subpoena. They won't hand it over over the phone, they won't hand it over via email, and they definitely won't hand it over through some third-party lookup site. Those sites are almost always just aggregating publicly visible mailing labels from social media or leaked databases. They're unreliable.
How to Rent a PO Box at This Location
If your actual goal is to get a PO Box at the Carol Stream station, here's what you need to do. Go in person. You can't rent one online in most cases. You'll need two forms of ID - one government-issued photo ID and one proof of current address like a utility bill or lease. The staff will walk you through it. Box sizes range from tiny number boxes that hold flat mail to larger ones that fit package deliveries. Pricing depends on the size and the lease term, which runs either 3 or 12 months. As of recent rates, a small box runs somewhere around $20 to $25 for three months and $60 to $75 for a year. A medium box might be $30 to $40 for three months and $90 to $120 annually. These numbers shift periodically with USPS rate changes, so don't treat them as permanent.
What You Can and Can't Do With It
A PO Box gives you a stable mailing address. It works for receiving letters, magazines, and standard USPS packages. It does not work for FedEx, UPS, or Amazon Locker deliveries unless the carrier specifically lists it as an accepted delivery point. Amazon has gotten better about accepting PO Boxes through their partnered carriers, but it's not guaranteed. There's also a common misconception that a PO Box is a valid residential address for anything. It isn't. You can't use it for DMV registration, bank account opening (most banks require a physical street address for verification), or anything that demands a real residence. USPS Form 1583 is required if you authorize someone else to pick up your mail, and that form gets notarized. I learned that the hard way when I tried to set up mail forwarding for a client who was out of state. The notary requirement caught me off guard the first time.
Get the Full Details
![Who Owns PO Box 5087 Carol Stream, IL 60197-5087, [SOLVED], 2024](https://thebranchlocator.com/wp-content/uploads/2022/08/PO-Box-5087-Carol-Stream-IL-60197-5087.png)
The Carol Stream Station Specifically
The Schiller Road location is one of the busier suburban stations in the DuPage County area. That means it can get crowded between 9 AM and 12 PM on weekdays, and Saturday mornings are similarly packed. If you're going in to rent a box or pick up mail, aim for right when they open or mid-afternoon on a Tuesday or Wednesday. The line moves faster. The station has accessible parking and the box lobby is indoors, which matters in January. There's also a self-service kiosk now at many locations where you can check your box number and unlock it with the code given to you at rental. Not every box row has these, but the newer sections at Carol Stream do.
Common Problems People Run Into
One issue that comes up constantly is people assuming their PO Box number is somehow searchable or linked to public records. It's not. If you found PO Box 5855 through some random website and you're trying to confirm it exists, the only way to verify is to call the Carol Stream station directly or visit. Even calling won't give you much. They'll confirm the box is active or inactive, but that's about it. Another problem is address formatting. If you're trying to receive something at this box, the correct format is: [Recipient Name]
PO Box 5855
Carol Stream, IL 60197
Notice the ZIP code is 60197, not 60188. The 60188 is the street address ZIP. The 60197 is the postal delivery ZIP for PO Boxes at that facility. Using the wrong one won't necessarily stop your mail, but it can slow things down during sorting, and in some automated systems it causes errors entirely.

Alternatives Worth Considering
If you're looking at this PO Box because you need a commercial address for a business, a UPS Store or similar mailbox rental service might be more useful. They give you a real street address like 123 Main St Suite 100, which most banks and registries accept without question. The trade-off is cost. UPS Store memberships in the Carol Stream area run roughly $20 to $50 per month depending on the box size and whether you include mailbox scanning services. USPS PO Boxes are cheaper but more limited in what they allow. If you're trying to track down who uses PO Box 5855 for any legal purpose, your path goes through an attorney and a subpoena. There's no shortcut. USPS complies with legal process, but they require proper documentation and they don't rush it. Expect a response window of several weeks at minimum. That's it. No hidden layers, no secret program, no special information behind box 5855. It's a box at a post office. If you need to rent one, go in person with your IDs. If you need to know who's in it, you need legal process. If you need a mailing address, weigh the cost difference between USPS and a commercial mailbox provider before committing.