Need to find a self-storage facility in your Texas town? We have 4,000+ to choose from across the state of Texas. Use this facility locator to search self storage by ZIP, city, name or amenities. Be assured that if you are using a TSSA facility member, you are using the best. Headquartered in Round Rock, TX, Texas Self Storage Association is the largest one in the county and has been providing a wide range of benefits to self-storage owners and operators in Texas since 1986.