Healdton is a city in Carter County, Oklahoma, United States.

A post office was established at Healdton, Indian Territory, on February 26, 1883.

[5] At the time of its founding, Healdton was located in Pickens County, Chickasaw Nation.

Oklahoma State Highway 76 passes through the city, leading south 5 miles (8 km) to U.S. Route 70, west of Wilson and north 5 miles (8 km) to Oklahoma State Highway 53.

Ardmore, the Carter County seat, is 23 miles (37 km) to the east via OK-76 and US-70.

This was followed by deposition of the Healdton sandstones and shales on pre-Pennsylvanian eroded rocks and subsequent folding during the Arbuckle Orogeny.

A prospector named Palmer drilled a shallow well, 425 feet, near an oil seep in the 1890s, but federal law prohibited oil development on "Indian lands" until the early 1900s.

Healdton is a regional medical provider, with Mercy Hospital Healdton dispensing critical-access hospital care in rural Carter, Jefferson, and Stephens Counties in southern Oklahoma.