Healdton is a city in Carter County, Oklahoma, United States. The population was 2,786 at the 2000 census. It is part of the Ardmore, Oklahoma Micropolitan Statistical Area.
Healdton is located at 34°13′54″N 97°29′4″W / 34.23167°N 97.48444°W / 34.23167; -97.48444 (34.231557, -97.484454).
According to the United States Census Bureau, the city has a total area of 14.4 square miles (37.2 km²), of which, 14.1 square miles (36.5 km²) of it is land and 0.3 square miles (0.7 km²) of it (1.88%) is water.