- Police Departments (400 agencies)
- County Jails (73 agencies)
- Sheriff Offices (72 agencies)
- Coroners (71 agencies)
- Campus Police (50 agencies)
- Adult Institutions (31 agencies)
- Tribal Police (15 agencies)
- State Police Agencies (15 agencies)
- Federal Agencies (12 agencies)
- Airport Police (7 agencies)
- State Agencies (4 agencies)
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- Military Police (3 agencies)
- Youth Institutions (2 agencies)
- National Parks (2 agencies)
- Harbor Police (2 agencies)
- Probation & Pretrial Facilities (2 agencies)
- Federal Corrections (1 agencies)
- Child Support Enforcement (1 agencies)
- Conservation Agencies (1 agencies)
- Transit Authority (1 agencies)
- Railroad Police (1 agencies)
