Location of Millerton, Oklahoma
Millerton is located at .
According to the United States Census Bureau, the town has a total area of 1.8 square miles (4.7 km2), all of it land.
As of the census of 2000, there were 359 people, 145 households, and 100 families residing in the town. The population density was 201.4 people per square mile (77.9/km2). There were 188 housing units at an average density of 105.5 per square mile (40.8/km2). The racial makeup of the town was 73.82% White, 4.18% African American, 14.76% Native American, 0.28% from other races, and 6.96% from two or more races. Hispanic or Latinoof any race were 1.11% of the population.
There were 145 households out of which 34.5% had children under the age of 18 living with them, 53.8% weremarried couples living together, 6.9% had a female householder with no husband present, and 31.0% were non-families. 26.9% of all households were made up of individuals and 6.2% had someone living alone who was 65 years of age or older. The average household size was 2.48 and the average family size was 3.02.
In the town the population was spread out with 27.6% under the age of 18, 7.5% from 18 to 24, 27.9% from 25 to 44, 26.5% from 45 to 64, and 10.6% who were 65 years of age or older. The median age was 35 years. For every 100 females there were 115.0 males. For every 100 females age 18 and over, there were 98.5 males.
The median income for a household in the town was $19,375, and the median income for a family was $31,875. Males had a median income of $30,577 versus $15,000 for females. The per capita income for the town was $11,168. About 21.6% of families and 26.7% of the population were below the poverty line, including 24.0% of those under age 18 and 29.4% of those age 65 or over.