Killeen is a relatively large city located in the state of Texas. With a population of 159,172 people and 38 associated neighborhoods, Killeen is the 20th largest community in Texas.

Killeen is a military town: the armed forces employs 7.19% of the workforce, making the military a major focus of life in the city. In the civilian sector, Healthcare and Retail are important in the local economy and are the city’s largest civilian employers, employing 12.95% and 11.18% of the civilian workforce respectively.

Also of interest is that Killeen has more people living here who work in computers and math than 95% of the places in the US.

The education level of Killeen citizens is a little higher than the average for US cities and towns: 22.11% of adults in Killeen have at least a bachelor's degree.

The per capita income in Killeen in 2018 was $28,002, which is middle income relative to Texas, and lower middle income relative to the rest of the US. This equates to an annual income of $112,008 for a family of four. However, Killeen contains both very wealthy and poor people as well.

Killeen is an extremely ethnically-diverse city. The people who call Killeen home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Killeen residents report their race to be Black or African-American, followed by White. Killeen also has a sizeable Hispanic population (people of Hispanic origin can be of any race). People of Hispanic or Latino origin account for 27.74% of the city’s residents. Important ancestries of people in Killeen include German, Irish, English, Italian, and European.

The most common language spoken in Killeen is English. Other important languages spoken here include Spanish and German/Yiddish.