The Cornwall Police Service polices an area of 52 square kilometers, and a population of approximately 47,400. The city has been divided into 6 patrol zones. The Cornwall Community Police Service is constantly adapting to give you, the citizens of Cornwall the quality of policing you deserve. We are responsible and accountable to the public whom we serve. The direction of the Service remains one of interaction with you, the general public, as a partner in the development of our Service and the safety of our community. Cornwall Community Police Service Official Linkedin. Account is NOT monitored 24/7, for an emergency - call 911/ Non-Emergency - call 613-932-2110.