The Department of Public Safety consists of five operating divisions: Fire Prevention, Park Ranger, Investigation, Waterways and Navigation, and Emergency Management. The department is responsible for the uniformed enforcement and security activities within the town. This is accomplished by the various divisions patrolling in a community-oriented fashion. The department serves an area of 54 square miles and a population of over 160,000.

Smithtown has approximately 20 miles of shoreline and hosts thousands of parkland acres. Outdoor activities take place in many venues including our:

- A municipally owned pool and golf course
- Two marinas
- Two state parks
- Three boat launching ramps
- Three county parks
- Five beaches
- Over 25 town parks