Keene is located in central Johnson County at . It is bordered to the west by Cleburne, the county seat. U.S. Route 67 runs through the southern side of the city, leading east to Alvarado and west to Cleburne. According to the United States Census Bureau, Keene has a total area of, of which are land and, or 1.66%, are water. Keene sits on a regional watershed divide, with the northern and eastern sides of the city draining to Turkey Creek, part of the Trinity River watershed, and the southern and western sides draining to East Buffalo Creek, part of the Brazos River watershed.
Demographics
As of the census of 2010, there were 6,106 people, 1,923 households, and 1,417 families residing in the city. The population density was 1,238.5 people per square mile. There were 2,204 housing units, of which 281 units, or 12.7%, were vacant. The racial makeup of the city was 71.2% white, 6.1% African American, 0.9% Native American, 2.5% Asian, 5.3% Pacific Islander, 11.0% some other race, and 2.8% from two or more races. Hispanic or Latino people of any race were 30.3% of the population. Of the 1,923 households in 2010, 41.8% had children under the age of 18 living with them, 52.5% were headed by married couples living together, 15.2% had a female householder with no husband present, and 26.3% were non-families. 20.5% of all households were made up of individuals, and 7.6% were someone living alone who was 65 years of age or older. The average household size was 2.97, and the average family size was 3.37. 27.6% of the city's population were under the age of 18, 14.9% were from 18 to 24, 26.8% from 25 to 44, 24.6% were from 45 to 64, and 13.1% were 65 years of age or older. The median age was 30.4 years. For every 100 females, there were 91.5 males. For every 100 females age 18 and over, there were 86.5 males. For the period 2013-17, the estimated median annual income for a household in the city was $41,869, and the median income for a family was $52,713. Male full-time workers had a median income of $45,345 versus $34,338 for females. The per capita income for the city was $18,066. About 14.9% of families and 17.0% of the total population were below the poverty line, including 20.6% of those under age 18 and 16.3% of those age 65 or over.
Elisa Carver Park is located in the heart of Keene and includes softball, soccer and tee ball fields, volleyball and basketball courts, walking trail, playground, picnic area, and nine-hole disc golf course. There is also a park by the privately run Keene Adventist Elementary School.
