Our branches will be closed on Wednesday, June 19 in observance of Juneteenth.

Banks in South Dakota

FNBO is the great big small bank with branch locations serving the Yankton, Huron, Woonsocket and Mitchell communities in South Dakota. Whether you’re looking to open a checking account, buying a home or financing your business we’re here to help. We want to show you why we're considered one of the best bank in South Dakota. Visit a South Dakota bank branch today.

Personal Banking Services in South Dakota

Checking Accounts in South Dakota

Open a free checking account or earn interest with our high interest checking account. Visit a branch or apply online today.

Savings Accounts in South Dakota

Whether you're looking to open a Savings Account, Money Market, HSA or even a Kids Savings Account we offer competitive interest rates that will help you reach your savings goals.

Mortgages in South Dakotaa

We offer a number of mortgage options to meet your home buying needs including FHA, VA Loans and Conventional Mortgages. Apply online today to lock in your rate or meet with a mortgage loan officer to discuss your borrowing options.

South Dakota Mortgage Calculator

Before you begin to shop, get a solid idea about monthly payments and how much you can afford. Once you know your spending limits, your home search will have the focus it needs to succeed.

Commercial Bank Services in South Dakota

Business Checking Accounts in South Dakota

Open a Free Business Checking account or enjoy the added benefits of our Analyzed Checking account. Our Commercial Banking Team is here to help you find the business banking services you need to manage your business finances.

Business Credit Cards in South Dakota

Whether your goal is to earn cashback on your business purchases or you're looking for a card with competitive interest rates our business credit card options can help you take care of business expenses while giving you peace of mind.

Business Loans in South Dakota

Let us help you take your business to the next level with a small business loan, line of credit or an SBA loan. As an SBA Preferred Lender we can help businesses who are just starting out as well as companies that are rapidly growing. Meet with one of our Commercial Lenders to discuss your options.