Our Locations- You're a BIG DEAL here

At Frontier Bank, we don't just open branches- we build relationships. With five convenient locations around Sioux Falls, SD and Lyon County, Iowa, we're proud to be a part of the communities we serve. Whether you're stopping by to deposit a check, ask about a loan, or just want to say hello, you'll be greeted with a smile- because You're a BIG DEAL here.