Law Enforcement Agencies in St. Petersburg, FL FL › Pinellas County Agencies serving the city of St. Petersburg in FL. Agency Types in St. Petersburg Adult Institutions 1 agencies Campus Police 2 agencies Municipal Police 1 agencies Parole Probation 1 agencies All Agencies in St. Petersburg, FL Circuit 6 Probation Pinellas County Eckerd College Pinellas County St Petersburg Cmnty Release Center Pinellas County St Petersburg Police Department Pinellas County Univ of South Florida Pinellas County