Contact Us

Bank Routing Number: 243379925

Call Center: 724.284.2020
Call during regular business hours for questions regarding your account.

Butler Main Office

Physical Address
101 Hollywood Drive | Butler| PA | 16001
(please send mail to our PO Box)
Map & Directions

Mailing Address
PO Box 1589 | Butler | PA | 16003-1589
For visa credit card payments and correspondence

Phone: 724.284.2020
Fax: 724.285.6158
Email: contact@armcocu.com

Hours
Mon., Tue., Wed. 9:00 am – 4:30 pm
Thurs., Fri. 9:00 am – 6:00 pm

Mars Branch

NEW Location as of June 1
1031 Aster Way
Mars, PA 16046
(intersection of Rt. 228/Myoma Rd.)
Map & Directions

Phone: 724.779.9090
Fax: 724.779.9091
Email: contact@armcocu.com

Hours
Mon., Tue., Wed., Fri. 8:30 am – 4:00 pm
Thurs. 8:30 am – 6:00 pm

Karns City Branch

Physical Address
106 Petrolia Street | Karns City | PA | 16041
Map & Directions

Phone: 724.756.6700
Fax: 724.756.7441
Email: contact@armcocu.com

Hours
Mon., Tue., Wed., Friday 8:30 am – 4:00 pm
Thur. 8:30 am – 5:30 pm

BC3 Branch

Physical Address
Butler County Community College
Student Success Center, 2nd Floor
107 College Drive |Butler | PA | 16002
Map & Directions

Phone: 724.431.4614
Email: contact@armcocu.com

Hours
Mon. thru Fri. 9:00 am – 2:00 pm
Summer Hours: Mon. thru Thur. 9:00 am – 2:00 pm

Report a Lost or Stolen Card:

  • Lost or Stolen Card: If your Mastercard debit card, STAR ATM card, or VISA credit card is lost or stolen, please contact Armco CU immediately.
  • During normal business hours, please call Account Servicing at 724-284-2020.
  • After hours, please call 724-284-2020 and select the Tele-R-Phone option from the call menu and follow the prompts to block your card.
  • If your Mastercard debit card is lost or stolen, you can also disable it through the Mobile Banking app. You would still need to order a new card online or by calling Account Servicing at 724-284-2020.