The Killeen Police Department is a 320-member organization, with a 243 member allotted sworn strength. We are responsible for all police functions in Killeen, Texas, ... See more a city of 116,934 population, covering approximately 54.01 square miles. Our Mission: The mission of the Killeen Police Department is to create a partnership with the community to combat crime and improve the quality of life for all its citizens. Our Vision: The Killeen Police Department's vision is to provide effective and efficient police services to our citizens, in the most professional and courteous manner possible by tailoring our manifold operations to meet the needs and expectations of our community.