At $41.2 billion in assets, MidFirst Bank is the largest privately owned bank in the nation. MidFirst can trace its roots back to 1954, starting as a mortgage company, evolving to the national institution it is …

MidFirst Bank is an American bank based in Oklahoma City, Oklahoma. As of 2025, it was the largest privately owned bank in the United States, with $41.2 billion in assets. [3]

MidFirst Bank makes banking easy with mobile banking and its flexible money management tools. Learn more.

Online Banking with MidFirst Bank lets customers easily manage their money, send payments, and more. Learn more about available services.

Bank from your home, office or anywhere in the world with MidFirst Bank’s free online and mobile banking services – available 24 hours a day, seven days a week.*

Enjoy a more rewarding banking experience and get more out of your money with MidFirst’s relationship banking. Choose the type of checking account that works for your life and discover how to build a …

MidFirst Bank features 79 Banking Centers and 63 off-site ATMs conveniently located across Oklahoma, Arizona, Colorado and Texas. The miTeller allows you to complete most transactions you do inside …