The Norman Police Department has been serving the residents of Norman since 1919 and is currently authorized to maintain 171 commissioned officers and 71 civilian employees. Located just 20 miles south of Oklahoma City, Norman is the third largest city in Oklahoma with a population just over 120,000 people and is home to the University of Oklahoma. NPD is responsible for protecting and responding to calls that span the city's 197 square miles which include a mixture of dense urban and growing rural areas.