Finding the Nearest Branch and ATM made simple!
Whether you are across town or traveling far from home, you are welcome at any of our seven convenient branches in South Dakota and at any of the 5,600 CO-OP Shared Branch locations and the 250 Xtend Shared Branch locations nationwide.
Effortlessly locate the closest ATM or branch with Sentinel Federal Credit Union’s user-friendly locator tool. Enjoy seamless access to your account, make transactions, and get the support you need with ease. Stay connected and manage your banking needs with confidence, thanks to our convenient locator feature.
Locate A Branch and ATM Near Your Location
 | Street Address 22752 Mule Deer Trail | Mailing Address PO Box 700 |
Drive-Up ATMs 447 North Ellsworth Road 22752 Mule Deer Trail | Contact Us Main Phone: 605-923-1405 | Call Center Hours Mon – Fri 7:30 am – 5:30 pm MT |
Lobby Hours Mon – Fri 9:00 am – 4:30 pm MT | Drive-Up Hours Mon – Fri 8:30 am – 4:30 pm MT |
| Street Address 18 Mount Rushmore Road | Mailing Address PO Box 700 |
Drive-Up ATM Available | Contact Us Main Phone: 605-923-1405 | Call Center Hours Mon – Fri 7:30 am – 5:30 pm MT |
Lobby Hours Mon – Fri 9:00 am – 5:00 pm MT | Drive-Up Hours Mon – Thurs 8:00 am – 5:00 pm MT |
 | Street Address 2723 Lemay Blvd | Mailing Address PO Box 700 |
Drive-Up ATM 2723 Lemay Blvd Walk-Up ATM 2932 Arnold Dr | Contact Us Main Phone: 605-923-1405 DSN: 675-6303 | Call Center Hours Mon – Fri 7:30 am – 5:30 pm MT |
Lobby Hours Mon – Fri 9:00 am – 5:00 pm MT |
 | Street Address 553 E. Main Street | Mailing Address PO Box 240 |
Contact Us Main Phone: 605-923-1405 | Call Center Hours Mon – Fri 7:30 am – 5:30 pm MT | |
Lobby Hours Mon – Fri 8:00 am – 5:00 pm MT |
 | Street Address 1430 Haines Ave Ste 101 | Mailing Address PO Box 700 |
Drive-Up ATM Available | Contact Us Main Phone: 605-923-1405 | Call Center Hours Mon – Fri 7:30 am – 5:30 pm MT |
Lobby Hours Mon – Fri 9:00 am – 5:00 pm MT | Drive-Up Hours Mon – Fri 7:30 am – 5:30 pm MT Saturday 9:00 am – Noon MT |
 | Street Address 4011 Triple Crown Dr | Mailing Address PO Box 700 |
Drive-Up ATM Available | Contact Us Main Phone: 605-923-1405 | Call Center Hours Mon – Fri 7:30 am – 5:30 pm MT |
Lobby Hours Mon – Fri 9:00 am – 5:00 pm MT | Drive-Up Hours Mon – Thurs 8:00 am – 5:00 pm MT |
 | Street Address 511 E 2nd St | Mailing Address 511 E 2nd St |
Drive-Up ATM Available
| Contact Us Phone: 605-842-3581 | Call Center Hours Mon – Fri 7:30 am – 5:30 pm MT |
Lobby Hours Mon – Fri 8:30 am – 3:30 pm CT | Drive-Up Hours Mon – Fri 8:00 am – 3:30 pm CT |
You can get person-to-person assistance with your accounts and conduct transactions just like you would at your home Credit Union. Just look for the CO-OP Shared Branch and the Xtend Shared Branch logos.
Get cash surcharge-free at more ATMs than ever.* You’ll find nearly 30,000 surcharge-free ATMs with the CO-OP ATM logo.
CO-OP ATM & Shared Branch Locator
From coast to coast, you’re welcome at branches and ATMs wherever you see the CO-OP logos. That covers a lot of territory — whether you’re across town or traveling far from home for business or pleasure. Your credit union membership means you can:
- Use nearly 30,000 surcharge-free* ATM locations — more than some of the biggest banks offer
- Take advantage of surcharge-free ATMs at convenient places like 7-Eleven® and Costco®
- Visit over 5,600 convenient Shared Branch locations covering all 50 states – simply have your credit union name, account number, and a government ID and you’ll have access to your accounts
- Easily locate ATMs and branches through any of our locator tools — including phone, mobile app or Internet
Find a CO-OP Shared Branch or surcharge-free ATM right now at www.allco-op.org or call 1-888-SITE-CO-OP.*
*There are no surcharge fees at ATMs that we own and at ATMs that display the CO‑OP logo. Per our Common Features (Fee Schedule) there is a $1.25 fee per ATM withdrawal/transfer at ATMs we do not own and a $.50 fee per Account Balance Inquiry.
Xtend Shared Branch Locator
At over 250 Xtend Shared Branches nationwide, you can get convenient access to your Credit Union accounts and make transactions.
- Withdrawals
- Deposits
- Loan payments
- Transfers
- Balance inquiries
For a complete list of locations and hours, visit search.xtendcu.com.
Download the Xtend Shared Branch App from the App Store and on Google Play.
