- Police Departments (717 agencies)
- Coroners (102 agencies)
- County Jails (102 agencies)
- Sheriff Offices (102 agencies)
- Campus Police (94 agencies)
- State Police Agencies (46 agencies)
- Adult Institutions (39 agencies)
- Federal Agencies (18 agencies)
- Probation & Pretrial Facilities (16 agencies)
- Railroad Police (12 agencies)
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- Airport Police (7 agencies)
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- State Agencies (5 agencies)
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- Ports of Entry (3 agencies)
- Child Support Enforcement (1 agencies)
- Transit Authority (1 agencies)
- Harbor Police (1 agencies)
- Conservation Agencies (1 agencies)
- National Parks (1 agencies)
