New Windsor State Bank Address: 1001 Twin Arch Rd, Mt Airy, MD 21771 Phone: (301) 829-7355 Banks, Mortgages Other Businesses: BB&T at 400 E Ridgeville Blvd, Mt Airy, MD 21771 Sandy Spring Bank at 425 E Ridgeville Blvd, Mt Airy, MD 21771 PNC Bank at 206 E Ridgeville Blvd, Mt Airy, MD 21771 Damascus Community Bank at 201 E Ridgeville Blvd, Mt Airy, MD 21771