Princeton National Bancorp is the holding company for Citizens First National Bank in north-central Illinois. Founded in 1865, the bank serves area residents and businesses through more than 20 branches in nearly as many communities. It offers traditional services such as checking and savings accounts, CDs, IRAs, and credit cards. Business loans account for the largest portion of the company's loan portfolio, followed by commercial and residential mortgages. The bank also writes agricultural, construction, and consumer installment loans. Through Citizens Financial Advisors, it offers insurance, investments, farm management, and fiduciary services.