Banks in Monongahela, Pennsylvania, the US. Banks locations in Monongahela, Pennsylvania. Find the nearest banks locations, near you. All types of business services Accounting ATM Bank Courthouse Finance Funeral home Insurance Lawyer Real estate School All banks in Monongahela Closed now Until 09:00 am KeyBank Finance Bank +1 724-258-7300 318 West Main Street, Monongahela, Pennsylvania 15063 Write a review Phone Hours Website Directions