ALL Try it . . . Training athletes since 1995. Training programs, training tips, products, links. Have a lot of time to spend, or plan on several visits to really get acquainted. National web site has listings for All Regional Associations.
Site also includes calendar, memberships, running info.
As they state . USMS was founded in 1970 and has over 30,000 members. It supports and encourages competition, but more than half are fitness swimmers. USMS is divided into regional sites. Know how to dress before you head out the door.