Prosperity Bank Banks & Credit UnionsLendersMortgage Lenders Prosperity Bank Visit Website 1221 Austin Avenue Brownwood, TX 76801 (325) 641-1714 (325) 646-7022 (fax) Hours: Monday-Friday Lobby 9-3, Drive Thru 7:45-5:30, Saturday 9-12 About Map About Prosperity Bank is the Big Bank with your community's bank inside. Prosperity Bank has over 250 locations to help meet all your banking needs. Stop by or call us today to visit with a local banker. What's Nearby? Distance: 5 10 15 20 25 50 mi.