Credit unions are gaining ground on big banks when it comes to offering more branch locations. Credit unions that participate in CO-OP Shared Branching provide their members with the fourth largest financial branch network in the United States and in the state of Missouri. The network enables members to conduct their financial business regardless of where they live, work or travel. Credit unions offer 4,593 branches nationwide beating out U.S. Bank by more than a 1,500 locations. Chase/WaMu, Bank of America and Wells Fargo/Wachovia top the national list.