Robert Lee is a city in and the county seat of Coke County, Texas, United States. The population was 1,049 at the 2010 census.
Robert Lee is located at 31°53′44″N 100°29′6″W / 31.89556°N 100.48500°W / 31.89556; -100.48500 (31.895687, -100.484912).
According to the United States Census Bureau, the city has a total area of 1.1 square miles (2.8 km), all of it land.
As of the census of 2000, 1,171 people, 496 households, and 326 families resided in the city. The population density was 1,026.7 people per square mile (396.6/km²). The 658 housing units averaged 576.9/sq mi (222.9/km²). The racial makeup of the city was 89.92% White, 0.26% African American, 0.77% Native American, 0.09% Asian, 7.34% from other races, and 1.62% from two or more races. Hispanics or Latinos of any race were 19.64% of the population.
Of 496 households, 27.4% had children under the age of 18 living with them, 52.6% were married couples living together, 11.3% had a female householder with no husband present, and 34.1% were not families. About 32.9% of all households were made up of individuals, and 21.8% had someone living alone who was 65 years of age or older. The average household size was 2.26 and the average family size was 2.85.
In the city, the population was distributed as 22.8% under the age of 18, 5.2% from 18 to 24, 21.1% from 25 to 44, 22.3% from 45 to 64, and 28.6% who were 65 years of age or older. The median age was 46 years. For every 100 females, there were 81.8 males. For every 100 females age 18 and over, there were 79.4 males.
The median income for a household in the city was $25,750, and for a family was $33,553. Males had a median income of $30,486 versus $19,615 for females. The per capita income for the city was $16,672. About 12.0% of families and 14.8% of the population were below the poverty line, including 16.6% of those under age 18 and 14.5% of those age 65 or over.