Security National Bank is the largest home-owned bank in Western Iowa. Since being founded in 1884, every bank president believed that the strength of the bank was in their courteous, service-oriented employees. There have been many changes at Security National over the past years, but one thing has remained constant -- our hometown personal service.We offer a wide variety of personal and commercial banking and investment products for every aspect of your financial needs. We also offer online banking for your convenience.We have several metro locations.Downtown Sioux CityMorningside NorthsideMarketplaceAkron, IADakota Dunes, SDPlease visit our website for locations and hours.