answers: 17,985
context: United States. The 2012 Bureau of Justice Statistics' Census of State and Local Law Enforcement Agencies (CSLLEA), found there were 17,985 state and local law enforcement agencies employing at least one full-time officer or the equivalent in part-time officers. In 2008, state and local law enforcement agencies employed more than 1.1 million people on a full-time basis, including about 765,000 sworn personnel (defined as those with general arrest powers). Agencies also employed approximately 100,000 part-time employees, including 44,000 sworn officers. From 2004 to 2008, overall full-time employment by state and local law enforcement agencies nationwide increased by about 57,000 (or </s> 5.3%). Sworn personnel increased by about 33,000 (4.6%), and nonsworn employees by about 24,000 (6.9%). From 2004 to 2008, the number of full-time sworn personnel per 100,000 U.S. residents increased from 250 to 251. From 1992 to 2008, the growth rate for civilian personnel was more than double that of sworn personnel. Local police departments were the largest employer of sworn personnel, accounting for 60% of the total. Sheriffs' offices were next, accounting for 24%. About half (49%) of all agencies employed fewer than 10 full-time officers. Nearly two-thirds (64%) of sworn personnel worked for agencies that employed 100 or </s> reorganization of the state judicial system early in the first decade of the 21st century, the roles of constable, marshal, and sheriff were merged, so that California sheriffs assumed the duties of most marshals, and the position of constable was eliminated entirely. The marshals offices continued to exist in only three counties—Shasta, Trinity, and San Benito—where they perform all court-security and warrant-service functions. The Los Angeles County Sheriff's Department (LASD) serves Los Angeles County, California. With over 10,000,000 people, it is the largest Sheriff department in the United States and provides general-service law enforcement to unincorporated areas of Los Angeles
question: how many different police agencies are there in the us