Police employee data by cities and counties grouped by size
Table 23 - “Full-time Law Enforcement Employees, by Region and Geographic Division by Population Group, Number and Rate per 1,000 Inhabitants, 2016”
Table 24 - “Full-time Law Enforcement Officers, by Region and Geographic Division by Population Group, Number and Rate per 1,000 Inhabitants, 2016”
Table 25 - “Full-time Law Enforcement Employees, by Population Group, Percent Male and Female, 2016”

Other data by cities and counties grouped by size (Population Group):
Offense data by cities and counties grouped by size
Clearance data by cities and counties grouped by size