First Financial Corporation operates as the bank holding company for First Financial Bank N.A. that provides various financial services for individuals and businesses in west-central Indiana, east-central Illinois, western Kentucky, central and eastern Tennessee, and northern Georgia in the United States. The company offers non-interest-bearing demand, interest-bearing demand, savings, time, and other time deposits; checking and savings accounts; personal and business certificates of deposit; and digital banking services. It also provides commercial loans primarily to expand a business or finance asset purchases; real estate mortgages, including residential real estate and residential real estate construction loans; home equity loans and lines, secured loans, cash/CD secured loans, and unsecured loans; mortgage refinance; personal and auto loans; and credit cards. In addition, the company offers lease financing, trust account, and depositor services; business services, including accounts receivable and payable, merchant services, fraud protection, money management, and workplace rewards; and wealth services. The company was formerly known as Terre Haute First Corporation and changed its name to First Financial Corporation in December 1984. First Financial Corporation was founded in 1834 and is headquartered in Terre Haute, Indiana.