The Mystery of PO Box 6753 Sioux Falls SD 57117 [Solved]

If you’ve ever looked closely at a credit card statement or a payment slip, you’ve probably seen the address PO Box 6753 Sioux Falls SD 57117 and wondered what, exactly, it is. You aren’t just sending a payment to a random mailbox; you’re sending it to a high-volume payment processing center for Citibank.

You see, this specific PO Box is a key part of the financial infrastructure for services like the Citi Drive Card and other co-branded credit cards.

Let’s break down why this address is so important, who actually owns it, and what it means for you as a customer. We’ll cover everything from the historical reasons Citibank operates out of South Dakota to the practical steps for sending mail there correctly.

Background Information on PO Box 6753 Sioux Falls SD 57117

At its core, PO Box 6753 in Sioux Falls, South Dakota, is more than just a mail receptacle. It’s a dedicated address used by Citibank, N.A., primarily for handling correspondence and payments related to its various credit card services.

This PO Box is a critical touchpoint for customers managing their credit card accounts, particularly for making payments by mail. The use of a specific box like this allows the bank to streamline its mail-in payment processing, ensuring that thousands of envelopes are sorted and handled efficiently every day.

A key detail is the use of a ZIP+4 code, which for this PO Box often appears as 57117-6753. That extra four-digit code is crucial. A 2021 report explained that these add-on codes pinpoint a very specific delivery route, sometimes down to a single building or even a department that receives a high volume of mail. This precision helps the USPS sort mail faster and reduces the chance of misdelivery, which is vital when dealing with financial documents.

Ownership of PO Box 6753 Sioux Falls SD 57117

The entity behind PO Box 6753 is Citibank, a major player in the global financial services industry. Specifically, this address is often associated with the “Citi Drive Card” and other retail-partnered credit cards that fall under the umbrella of Citi Retail Services.

You might be wondering, “Why Sioux Falls, South Dakota?” The answer goes back to a landmark 1978 Supreme Court case, Marquette Nat. Bank of Minneapolis v. First of Omaha Service Corp. This ruling allowed national banks to “export” the interest rate laws of the state where they were headquartered to customers nationwide. South Dakota, seeking economic growth, eliminated its usury laws, which capped interest rates. This move in the early 1980s prompted Citibank and other major credit card issuers to move their card operations to the state, turning Sioux Falls into a major financial hub.

Today, Citibank is one of the top employers in Sioux Falls, with a large operational presence that includes customer service and payment processing. For more local context, you can also read about another Sioux Falls address, PO Box 7251 Sioux Falls.

The Physical Location of PO Box 6753 Sioux Falls SD 57117

While a PO Box is not a physical residence or office, it does exist within a tangible United States Postal Service (USPS) facility. The PO Boxes in the 57117 ZIP code are housed in a post office in Sioux Falls, the seat of Minnehaha County.

The main USPS location in that area is the Sioux Falls Post Office, located at 320 S 2nd Ave, Sioux Falls, SD 57104. It’s within this secure federal building that thousands of PO Boxes are managed, providing a safe and centralized location for high-volume mail operations like Citibank’s.

Pro Tip: Don’t confuse a USPS PO Box with a private mailbox rental service, like a UPS Store. A USPS PO Box can only receive mail delivered by the Postal Service, whereas private mailboxes can often accept packages from carriers like UPS and FedEx. For payment processing, the security and direct link to the federal mailstream make a USPS PO Box the preferred choice for financial institutions.

Contact Details for PO Box 6753 Sioux Falls SD 57117

It’s important to understand that you cannot directly contact the PO Box itself. It is a mail receptacle, not an office. If you need to speak with someone about your account, you must contact Citibank’s customer service.

Finding the right number can sometimes be tricky, but here are the primary contact details associated with the types of accounts that use this address.

• General Citi Cards Support: The most direct number for general support is 1-800-950-5114.
• Citi Drive Card Customer Service: For specific questions about the Drive Card, the listed number is 1-888-343-1127.
• Technical Assistance: If you are having trouble with the online portal, a separate technical assistance line is available at 1-800-721-3860.

When you call, be sure to have your account number and personal information ready to verify your identity. This will help the customer service representative assist you more quickly.

PO Box 6753 in Context: Sioux Falls SD 57117

This single PO Box is part of a much larger economic story in Sioux Falls. The city’s growth and stability are closely tied to the financial services industry, a relationship that began decades ago and continues to shape the local community.

Overview of Sioux Falls

Sioux Falls is the most populous city in South Dakota, home to a growing community and a diverse economy. While known for landmarks like the beautiful Falls Park on the Big Sioux River, the city is also a significant center for banking and healthcare. Companies like Wells Fargo, Citi, and First PREMIER Bank are among the city’s largest employers.

This concentration of financial power means the city has a robust and efficient postal service infrastructure designed to handle immense volumes of business mail. The presence of these operations provides thousands of jobs and makes addresses like PO Box 81129 in Austin Texas and this one in Sioux Falls critical hubs in the national financial system.

Importance of PO Boxes in Sioux Falls

For businesses, especially large corporations like Citibank, PO Boxes offer several advantages over a standard street address. The primary benefits are security and efficiency.

A PO Box located inside a federal post office provides a secure environment for sensitive documents like checks and account information. Furthermore, it allows for specialized mail handling. High-volume mailers can arrange for unique sorting and pickup schedules that aren’t possible with standard street delivery.

For individuals, services have evolved significantly. The USPS now offers a free service called Informed Delivery®, which was expanded with a new mobile app in October 2025. This service allows PO Box renters (and residential customers) to get a digital preview of their incoming letter-sized mail, so you know what’s arriving before you even visit the post office.

Detailed Analysis of PO Box 6753 Sioux Falls SD 57117

Let’s look closer at how this specific PO Box functions as a component of Citibank’s operations. It’s not just a passive mailbox but an active part of the company’s financial workflow, connecting customer actions to internal processing.

Services offered

The services tied to PO Box 6753 are highly specialized and focused on account management. This is not a box you can rent for personal use; it is a dedicated corporate address.

• Payment Processing: Its number one function is to receive and process mailed-in credit card payments. Envelopes sent here are typically handled in a secure, automated environment where payments are quickly credited to customer accounts.
• Account Correspondence: Customers may be directed to send other documents here, such as dispute forms or responses to information requests.
• Secure Document Handling: The use of a PO Box ensures that sensitive financial information is delivered to a controlled location rather than a general corporate mailroom.
• Centralized Sorting: For a massive organization like Citibank, having a single PO Box for specific card services allows them to centralize and streamline mail handling for that entire portfolio.

Notable Entities associated with the PO Box

While Citibank is the primary owner, this address is most frequently connected with specific credit card products that you might have in your wallet.

• Citi Retail Services: This is the division of Citibank that partners with retailers to offer co-branded and private-label credit cards. The “Drive Card” is one such product.
• Goodyear Credit Card: Many customers of the Goodyear-branded credit card, managed by Citi, will recognize this PO Box as their payment address.
• Firestone Credit Card: Similarly, the Firestone credit card program, also under Citi Retail Services, utilizes this address for mail-in payments.
• Other Retail Partners: Over the years, Citi has managed card programs for numerous other retailers, and this address may have been used for those accounts as well.

User Interaction with PO Box 6753 Sioux Falls SD 57117

Engaging with this PO Box is a straightforward process, but following the correct procedure is essential to ensure your mail is processed correctly and on time. Here’s what you need to know from a practical standpoint.

How to send mail to the PO Box

When mailing a payment or document, precision is key. Follow these steps to avoid any delays or processing errors.

1. Use the Full, Correct Address: Address your envelope to the specific entity (e.g., Citi Drive Card) followed by PO Box 6753, Sioux Falls, SD 57117. Including the full ZIP+4 code (57117-6753) can further speed up sorting.
2. Include Your Account Number: Always write your full credit card account number on the memo line of your check or money order. This is the single most important step to ensure your payment is credited to the right account.
3. Never Send Cash: It is never advisable to send cash through the mail to pay a bill. Use a personal check, cashier’s check, or money order for a secure and traceable payment.
4. Use the Provided Envelope: Whenever possible, use the return envelope included with your billing statement. It is pre-addressed and often includes a barcode that helps with automated sorting.
5. Allow for Mail Time: Citibank notes that payments received by mail may take 5 to 7 days to arrive and be processed. Mail your payment well ahead of the due date to avoid late fees.

You may also find this article interesting: PO Box 4519 Skokie IL

Receiving mail from the PO Box

You won’t be “receiving mail from” this PO Box in the traditional sense, as it’s an inbound address for Citibank. However, you will receive correspondence *from* Citibank that is related to the accounts managed through this hub.

This mail will likely come from a different return address, often another facility in Sioux Falls or a different city entirely. Here’s what you can expect to receive:

• Monthly Billing Statements: Your paper statements will detail your charges, payments, and the amount due.
• Privacy Notices: Banks are legally required to send annual notices explaining their information-sharing practices.
• Account Updates: You may receive letters about changes to your interest rates, credit limit, or other terms of service.
• Marketing Offers: Citibank may also send you promotional offers for balance transfers or other financial products.

Takeaways

So, the mystery of PO Box 6753 Sioux Falls SD 57117 is solved. It’s not just a mailbox, but a vital payment and correspondence processing hub for Citibank, particularly for its retail-partnered credit cards.

This address exists in Sioux Falls because of strategic business decisions made decades ago, rooted in South Dakota’s favorable banking laws.

When you send a payment here, remember the importance of including your account number and allowing plenty of time for mail delivery. For any direct assistance, always use the official customer service numbers for your specific card.