ottawa bancorp, inc. operates as the holding company for ottawa savings bank, a savings bank that provides various financial services to individual and corporate customers in illinois. the company's deposit products include checking, money market, regular savings, club savings, certificate of deposit, and various retirement accounts. its loan portfolio comprises one-to-four family residential real estate mortgage loans and home equity lines of credit; multi-family, non-residential real estate, agricultural real estate, commercial, and construction loans; and consumer loans comprising auto, share, and personal unsecured loans. the company was formerly known as ottawa savings bancorp, inc. and changed its name to ottawa bancorp, inc. in october 2016. ottawa bancorp, inc. was founded in 1871 and is headquartered in ottawa, illinois.