Security National Bank's Lawton Branch serves as the only bank in this small agricultural community of about 950 residents. Lawton is just a short seven miles from Sioux City, just off of Highway 20. Security National Bank is proud to serve the community as a full service branch that accommodate personal and business needs such as checking and savings accounts, as well as other services like agricultural loans. Lawton is home to Lawton-Bronson High School.