The following is a list of the law enforcement agencies with a presence in Washington, DC:
First, there are the Feds. There are over 6,000 Federal Law enforcement agents and police in DC, but no one outside of high level government officials is sure how many more than 6,000 there are, because that is classified:
The US Secret Service
US Park Police (1,800 officers in the park police alone)
FBI Special Investigations
US Marshals
Armed Forces Retirement Home Police
National Zoological Park Police
US Capitol Police
US Supreme Court Police
Smithsonian Police
US State Department Diplomatic Security Service
US Naval Criminal Investigative Service
US Army Criminal Investigative Service
US Air Force Office of Special Investigations
US Coast Guard Criminal Investigative Service
US Pentagon Police
US Department of Defense Police
US Mint Police
Bureau of Engraving and Printing Police
US Postal Police
Homeland Security Investigations
FBI Police (uniformed division)
Federal Protective Service
Government Printing Office Police
Bureau of Alcohol, Tobacco, Firearms, and Explosives
Federal Bureau of Prisons Police
Drug Enforcement Administration
US Department of Veterans Affairs Police
Amtrak Police
US Army Military Police Corps
US Federal Reserve Police
Second are the Municipal police agencies, with a total of more than 5,200 sworn officers:
District of Columbia Metropolitan Police
District of Columbia Protective Services Police
District of Columbia Department of Corrections
District of Columbia Public Library Police
District of Columbia Public Schools Police
District of Columbia Housing Authority Police
Then there are the college campus police, representing more than 1,000 more law enforcement officers:
American University Police Department
Catholic University Department of Public Safety
Gallaudet University Department of Public Safety
George Washington University Police Department
Georgetown University Police Department
Howard University Campus Police
University of the District of Columbia Police Department
In all, there are more than 12,000 law enforcement personnel in the DC area, meaning that there are more than 2,000 law enforcement officers for every 100,000 residents. This makes Washington DC the most heavily policed city in the world.
With that, DC saw its 105th murder of the year in July, meaning that the city is on pace to see a murder rate of more than 16 per 100,000 for 2015. This makes DC’s murder rate more than three times higher than the national average, and the highest in the nation.