The myrmecofauna of Rockwall County, TX are undersampled. A survey from March to November 2015 resulted in collection and identification of twelve species of ants. Solenopsis invicta Buren, Monomorium minimum Buckley, and Forelius pruinosus Roger were the species collected most often on the ground, while Crematogaster laeviuscula Mayr was the dominant arboreal species. We believe our identification of Aphaenogaster huachucana Creighton to be the first record of this species in the state.