COVID-19 Notice to Customers

With the rapidly changing environment in regards to COVID-19, and to ensure the health and safety of our customers, staff, families, and communities, we have decided to close our lobbies to appointment only. This change is effective 3/18/2020 until further notice. Our drive-throughs will remain open to you for all your other financial needs and will continue to be open normal hours Monday through Friday and Saturdays. If you need immediate lobby access or want to schedule an appointment, please call your local branch.

We encourage you to use our online and mobile banking tools to manage your accounts. These 24/7/365 services allow you to view transactions, check balances, and make payments. If you don’t currently use these services, visit to sign up for online banking or download the mobile banking app at the Google Play store or Apple store. You can also call your local branch to have someone assist you.

We recognize the challenging and uncertain time this is for our communities and our country. We continue to be committed to serving and assisting you through that uncertainty. Please stay healthy and safe.


Welcome to CornerStone State Bank

CornerStone State Bank thanks you for coming to our internet site. We hope you will enjoy our internet banking package using it often and responsibly for many of your banking needs. The internet site will provide you with 24 hours of banking opportunities, information about CornerStone State Bank, interest rates, and secure information about your accounts.

Our commitment to you is to provide the best banking experience possible at very competitive prices, interest rates, technology, banking products, and services.

Chartered in 1974, as one office in Le Sueur, Minnesota, now CornerStone State Bank has grown into seven communities; Le Sueur, Cloquet, Belle Plaine, Montgomery, Green Isle, and most recently, Madison Lake and Eagle Lake, Minnesota. As an independent locally owned bank, all staff at CornerStone State Bank is committed to hometown service and the growth of our customers and communities.

Save, borrow, plan for retirement, buy a home, buy a business, buy a car, CORNERSTONE STATE BANK wants to be the Bank of your financial future. We appreciate your banking business, on-line or in person.

Bank Observed Holidays

January 1st - New Years Day - Closed

May 25th - Memorial Day - Closed

July 4th - Independence Day - Closed

September 7th - Labor Day - Closed

November 11th - Veterans Day - Closed

November 26th - Thanksgiving Day - Closed

December 24th - Christmas Eve - Closing at Noon

December 25th - Christmas Day - Closed