- Police Departments (383 agencies)
- Sheriff Offices (116 agencies)
- County Jails (114 agencies)
- Coroners (112 agencies)
- Campus Police (52 agencies)
- Youth Institutions (27 agencies)
- Adult Institutions (25 agencies)
- Federal Agencies (21 agencies)
- State Police Agencies (20 agencies)
- Airport Police (6 agencies)
- Military Police (5 agencies)
- Probation & Pretrial Facilities (5 agencies)
- Ports of Entry (4 agencies)
- State Agencies (4 agencies)
- National Parks (3 agencies)
- Railroad Police (3 agencies)
- Transit Authority (1 agencies)
- Federal Corrections (1 agencies)
- Conservation Agencies (1 agencies)
- Parole & Probation (1 agencies)
- Child Support Enforcement (1 agencies)
