Brazoria County Library System Administration Libraries Brazoria County Library System Administration 111 E. Locust St., Bldg. A-29 Suite 250 Angleton, TX 77515 (979) 864-1505 (979) 864-1298 (fax) Facebook Hours: We have12 locations, please check our website for hours of operation. About Map About The Brazoria County Library System serves the educational, informational, and recreational needs of the library users. Our website address is http://bcls.lib.tx.us Directions Please check our website for branch locations. What's Nearby? Distance: 5 10 15 20 25 50 mi.