Location of Alex, Oklahoma
|Coordinates: 34°54′55″N 97°46′47″W|
According to the United States Census Bureau, the town has a total area of 6.7 square miles (17 km2), all of it land.
As of the census of 2010, there were 550 people residing in the town. The population density was 82 people per square mile (32/km²). There were 289 housing units at an average density of 42 per square mile (15/km²). The racial makeup of the town was 91.18% White, 6.30% Native American, 0.16% Asian, 0.79% from other races, and 1.57% from two or more races. Hispanic or Latino of any race were 1.89% of the population.
There were 254 households out of which 29.9% had children under the age of 18 living with them, 56.3% were married couples living together, 11.8% had a female householder with no husband present, and 29.5% were non-families. 26.4% of all households were made up of individuals and 14.2% had someone living alone who was 65 years of age or older. The average household size was 2.50 and the average family size was 2.97.
In the town the population was spread out with 27.2% under the age of 18, 8.2% from 18 to 24, 24.6% from 25 to 44, 22.7% from 45 to 64, and 17.3% who were 65 years of age or older. The median age was 38 years. For every 100 females there were 99.7 males. For every 100 females age 18 and over, there were 88.6 males.
The median income for a household in the town was $27,353, and the median income for a family was $31,364. Males had a median income of $29,750 versus $21,563 for females. The per capita income for the town was $13,455. About 15.1% of families and 18.5% of the population were below the poverty line, including 18.7% of those under age 18 and 10.1% of those age 65 or over.