First Financial Bank Decatur branch is located at West Hale Ave, Decatur, TX and has been serving Wise county, Texas for over 34 years. Get hours. First Financial Bank in Decatur, reviews by real people. Yelp is a fun and easy way to find, recommend and talk about what's great and not so great in Decatur. First Financial is a community bank with 78 locations across Texas providing services such as online banking, home loans, commercial lending and wealth.