Members 1st Federal Credit Union Address: 450 E Main St, Middletown, PA 17057 Phone: (717) 944-6157 Banks, Credit Unions Other Businesses: Santander Bank ATM at One Terminal Drive, Middletown, PA 17057 Santander Bank ATM at One Terminal Drive, Middletown, PA 17057 Santander Bank ATM at 1565 W Harrisburg Pike, Middletown, PA 17057 Customers Bank at 2 Summit Sq SC, Middletown, PA 17057