|• Total||5.04 sq mi (13.05 km2)|
|• Land||4.96 sq mi (12.84 km2)|
|• Water||0.08 sq mi (0.21 km2)|
|Elevation||892 ft (272 m)|
| • Estimate |
|• Density||1,324.99/sq mi (511.56/km2)|
|Time zone||UTC-6 (Central)|
|• Summer (DST)||UTC-5 (CDT)|
|GNIS feature ID||1338981|
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 7 miles (11 km) to Alvarado and west 5 miles (8 km) to Cleburne.(32.392860, -97.327501).
According to the United States Census Bureau, Keene has a total area of 5.0 square miles (13.0 km2), of which 4.9 square miles (12.8 km2) are land and 0.1 square miles (0.2 km2), 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.
|U.S. Decennial Census|
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 (478.7/km2). 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.
The Keene Independent School District provides public education to the area. It includes Keene Elementary School, Keene Junior High, and Keene High School.
There are two private schools in the city, Keene Adventist Elementary School (grades K-8), and Chisholm Trail Academy (grades 9-12). Both schools, along with Southwestern Adventist University (a private liberal arts university in Keene which is currently the only four-year institution of higher learning in Johnson County), are affiliated with the Seventh-day Adventist Church.
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.
- "2019 U.S. Gazetteer Files". United States Census Bureau. Retrieved August 7, 2020.
- "Population and Housing Unit Estimates". United States Census Bureau. May 24, 2020. Retrieved May 27, 2020.
- "U.S. Census website". United States Census Bureau. Retrieved 2008-01-31.
- "US Board on Geographic Names". United States Geological Survey. 2007-10-25. Retrieved 2008-01-31.
- "Geographic Identifiers: 2010 Census Summary File 1 (G001): Keene city, Texas". American Factfinder. U.S. Census Bureau. Archived from the original on February 13, 2020. Retrieved December 24, 2018.
- "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. 2011-02-12. Retrieved 2011-04-23.
- "Census of Population and Housing". Census.gov. Retrieved June 4, 2015.
- "Profile of General Population and Housing Characteristics: 2010 Census Summary File 1 (DP-1): Keene city, Texas". American Factfinder. U.S. Census Bureau. Archived from the original on February 13, 2020. Retrieved December 24, 2018.
- "Selected Economic Characteristics: 2013-2017 American Community Survey 5-Year Estimates (DP03): Keene city, Texas". Archived from the original on February 13, 2020. Retrieved December 24, 2018.
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