Howdy Kitty - There are the Fellowship of Freethought folks; they have a big assortment of meetups and a regular fellowship meeting this Sunday. The Dallas/Plano atheists also have frequent meetups. I think there is a group in Denton also.
Hi Kitty Welcome to this world of rationality and peace, where pure common sense is enough to lead to the open freethinking wisdom common to non-believers like you and us. We invite you to join the busy group "ORIGINS: Universe, Astronomy, Life, Earth, Humans, Religion, Gods, Atheism, Evolution, Darwin..." with 700 discussion topics and 3700 members. http://www.atheistnexus.org/group/originsuniverselifehumankindanddarwin