Kerr County is a county located on the Edwards Plateau in the U.S. state of Texas. As of the 2010 census, its population was 49,625. Its county seat is Kerrville. The county was named by Joshua D. Brown for his fellow Kentucky native, James Kerr, a congressman of the Republic of Texas.
According to the U.S. Census Bureau, the county has a total area of 1,107 square miles (2,870 km), of which 1,103 square miles (2,860 km) is land and 4.0 square miles (10 km) (0.4%) is water.
As of the census of 2000, there were 43,653 people, 17,813 households, and 12,308 families residing in the county. The population density was 40 people per square mile (15/km²). There were 20,228 housing units at an average density of 18 per square mile (7/km²). The racial makeup of the county was 88.89% White, 1.78% Black or African American, 0.56% Native American, 0.51% Asian, 0.05% Pacific Islander, 6.60% from other races, and 1.62% from two or more races. 19.13% of the population were Hispanic or Latino of any race.
There were 17,813 households out of which 25.50% had children under the age of 18 living with them, 56.80% were married couples living together, 9.20% had a female householder with no husband present, and 30.90% were non-families. 27.50% of all households were made up of individuals and 15.00% had someone living alone who was 65 years of age or older. The average household size was 2.35 and the average family size was 2.84.
In the county, the population was spread out with 22.70% under the age of 18, 6.70% from 18 to 24, 22.20% from 25 to 44, 23.50% from 45 to 64, and 24.90% who were 65 years of age or older. The median age was 44 years. For every 100 females there were 92.00 males. For every 100 females age 18 and over, there were 87.80 males.
The median income for a household in the county was $34,283, and the median income for a family was $40,713. Males had a median income of $27,425 versus $21,149 for females. The per capita income for the county was $19,767. About 10.30% of families and 14.50% of the population were below the poverty line, including 21.60% of those under age 18 and 8.40% of those age 65 or over.