Montague County (/ˈmɒnteɪɡ/ MAHN-tayg) is a county located in the U.S. state of Texas, established in 1857. As of the 2010 census, its population was 19,719. The county seat is Montague. The county was created in 1857 and organized the next year. It is named for Daniel Montague, a surveyor and soldier in the Mexican–American War.
According to the U.S. Census Bureau, the county has a total area of 938 square miles (2,430 km), of which 931 square miles (2,410 km) is land and 7.4 square miles (19 km) (0.8%) is water.
As of the census of 2000, there were 19,117 people, 7,770 households, and 5,485 families residing in the county. The population density was 20 people per square mile (8/km²). There were 9,862 housing units at an average density of 11 per square mile (4/km²). The racial makeup of the county was 95.95% White, 0.18% Black or African American, 0.74% Native American, 0.26% Asian, 0.03% Pacific Islander, 1.64% from other races, and 1.21% from two or more races. 5.41% of the population were Hispanic or Latino of any race.
There were 7,770 households out of which 28.70% had children under the age of 18 living with them, 58.10% were married couples living together, 8.80% had a female householder with no husband present, and 29.40% were non-families. 27.10% of all households were made up of individuals and 14.70% had someone living alone who was 65 years of age or older. The average household size was 2.41 and the average family size was 2.91.
In the county, the population was spread out with 24.00% under the age of 18, 6.80% from 18 to 24, 24.30% from 25 to 44, 25.10% from 45 to 64, and 19.80% who were 65 years of age or older. The median age was 41 years. For every 100 females there were 92.50 males. For every 100 females age 18 and over, there were 89.80 males.
The median income for a household in the county was $31,048, and the median income for a family was $38,226. Males had a median income of $31,585 versus $19,589 for females. The per capita income for the county was $17,115. About 10.00% of families and 14.00% of the population were below the poverty line, including 17.80% of those under age 18 and 11.90% of those age 65 or over.