Custer City is northeast of Clinton and northwest of Weatherford along Oklahoma 33.

[5] Custer City was originally known as Graves, and a post office was established there on January 22, 1894.

[6] According to the United States Census Bureau, the town has a total area of 0.6 square miles (1.6 km2), all land.

There were 206 housing units at an average density of 342.4 per square mile (132.2/km2).

32.5% of all households were made up of individuals, and 13.0% had someone living alone who was 65 years of age or older.