Hartley County is a county located in the U.S. state of Texas. In 2000, its population was 5,537. It is named for Oliver C. Hartley and Rufus K. Hartley, two early Texas legislators and lawyers. The county seat is Channing.
There were 1,604 households out of which 35.50% had children under the age of 18 living with them, 68.90% were married couples living together, 4.70% had a female householder with no husband present, and 23.90% were non-families. 21.60% of all households were made up of individuals and 11.80% had someone living alone who was 65 years of age or older. The average household size was 2.56 and the average family size was 2.98.
In the county, the population was spread out with 20.80% under the age of 18, 4.70% from 18 to 24, 35.70% from 25 to 44, 26.90% from 45 to 64, and 11.90% who were 65 years of age or older. The median age was 40 years. For every 100 females there were 154.10 males. For every 100 females age 18 and over, there were 172.90 males.
The median income for a household in the county was $46,327, and the median income for a family was $53,004. Males had a median income of $29,783 versus $21,783 for females. The per capita income for the county was $18,067. About 3.70% of families and 6.60% of the population were below the poverty line, including 8.00% of those under age 18 and 5.30% of those age 65 or over.