- Police Departments (11,545 agencies)
- Sheriff Offices (3,163 agencies)
- Coroners (3,085 agencies)
- County Jails (3,081 agencies)
- Campus Police (2,122 agencies)
- State Police Agencies (1,164 agencies)
- Adult Institutions (1,070 agencies)
- Federal Agencies (896 agencies)
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- Tribal Police (213 agencies)
- State Agencies (183 agencies)
- Federal Corrections (102 agencies)
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- Conservation Agencies (53 agencies)
- Child Support Enforcement (51 agencies)
- Harbor Police (46 agencies)
- Transit Authority (42 agencies)
