Lake Dallas is located at (33.128297, –97.027592). According to the United States Census Bureau, the city has a total area of , of which is land and , or 11.03%, is water. The climate in this area is characterized by hot, humid summers and generally mild to cool winters. According to the Köppen Climate Classification system, Lake Dallas has a humid subtropical climate, abbreviated "Cfa" on climate maps.Climate Summary for Lake Dallas, Texas
