Arkoma is a town in Le Flore County, Oklahoma, United States. It is part of the Fort Smith Arkansas-Oklahoma Statistical Area. The population was 2,180 at the 2000 census. The name of the town, an example of a portmanteau, comes from its location near the state line dividing Arkansas and Oklahoma.
According to the United States Census Bureau, the town has a total area of 3.6 square miles (9.3 km²), of which, 3.5 square miles (9.1 km²) of it is land and 0.1 square miles (0.2 km²) of it (2.23%) is water.
There were 877 households out of which 28.4% had children under the age of 18 living with them, 50.4% were married couples living together, 13.5% had a female householder with no husband present, and 32.0% were non-families. 28.6% of all households were made up of individuals and 10.5% had someone living alone who was 65 years of age or older. The average household size was 2.43 and the average family size was 2.97.
In the town the population was spread out with 24.6% under the age of 18, 8.8% from 18 to 24, 25.9% from 25 to 44, 25.8% from 45 to 64, and 15.0% who were 65 years of age or older. The median age was 38 years. For every 100 females there were 96.8 males. For every 100 females age 18 and over, there were 90.9 males.
The median income for a household in the town was $23,718, and the median income for a family was $31,500. Males had a median income of $24,200 versus $17,104 for females. The per capita income for the town was $13,467. About 17.0% of families and 20.1% of the population were below the poverty line, including 26.8% of those under age 18 and 18.0% of those age 65 or over.