Question: The Annapolis Police Department serves the people of what county?

Context paragraphs:
Los Gatos/Monte Sereno Police Department: The Los Gatos/Monte Sereno Police Department serves the cities of Los Gatos and Monte Sereno, located in Santa Clara County, California.  The department is made up of 64 sworn officers and regular employees.  The department is a full service organization.  The department works with several other law enforcement agencies including the California Highway Patrol, Campbell Police Department, San Jose Police Department, and Santa Clara County Sheriff's Office.  The cities of Los Gatos and Monte Sereno have very low crime rates.  The police chief for the Los Gatos/Monte Sereno police department is Matt Frisby.

Annapolis, Maryland: Annapolis ( ) is the capital of the U.S. state of Maryland, as well as the county seat of Anne Arundel County.  Situated on the Chesapeake Bay at the mouth of the Severn River, 25 mi south of Baltimore and about 30 mi east of Washington, D.C., Annapolis is part of the Baltimore–Washington metropolitan area.  Its population was measured at 38,394 by the 2010 census.

Annapolis Police Department: The Annapolis Police Department (APD) is a full-service law enforcement agency servicing a population of over 38,000 residents in 7.1 sqmi of the municipality of Annapolis, Maryland.

Manassas City Police Department: The Manassas City Police Department (MCPD) is the primary law enforcement agency servicing 37,821 people living in City of Manassas, VA.  Located at 9518 Fairview Avenue, the Manassas City Police Department serves a jurisdiction of approximately 10.0 sqmi .  In 2008, the department employed 90 sworn police officers, 12 unsworn police officers.  On July 9, 2014, Manassas City Police Department became newsworthy after a local teenager sent explicit photos of herself to her then boyfriend (age 17) who in return sent explicit video of himself to the teen.  When the female teenager's mother complained, the MCPD officials chose to create some of their own child-porn in order to investigate a case of "child porn".  MCPD held a warrant to chemically induce an erection in the boy and photograph the boy's penis purportedly to compare/measure it with help from a special "Homeland Security software" according to MCPD Detective David E. Abbott.

Charlotte-Mecklenburg Police Department: The Charlotte-Mecklenburg Police Department is the police department of the City of Charlotte & Mecklenburg County, North Carolina, US.  With 1,849 officers and 473 civilian staff as of 2014, covering an area of 438 sqmi with a population of nearly 900,000, it is the largest police department between Washington D.C. and Atlanta, Georgia.  The CMPD is unique in that it was formed in 1993 with the merger of the former Charlotte City Police Department and the Mecklenburg County Rural Police Department.  Mecklenburg and neighboring Gaston County were the two counties out of the state's 100 counties to have county police in addition to the sheriff's offices.  County police perform law enforcement tasks in the county with police powers anywhere in the county just like the sheriff, but the sheriff primarily handled the courts and jails.  The North Carolina General Assembly approved legislation combining the two agencies.  They are by statute "county police" in that they have jurisdiction anywhere in Mecklenburg County.  However currently, the CMPD does not have any response areas outside Charlotte but within Mecklenburg County.  The unique status of this situation makes the CMPD "metro" police, and the City of Charlotte has no municipal police department.

St. Petersburg Police Department: The St Petersburg Police Department (SPPD) provides crime prevention and public safety services for the city of St Petersburg, Florida.  The department was created in 1903.  The St. Petersburg Police Department has an authorized strength of 550 sworn officers and 212 civilian support staff.  The department serves the fifth largest city in the state of Florida, with a population of 250,000.  The St. Petersburg Police Department is one of over 1,000 law enforcement agencies in the United States accredited by the Commission on Accreditation of Law Enforcement Agencies (CALEA).  Anthony Holloway is the chief of police.

Los Angeles Police Department: The Los Angeles Police Department (LAPD), officially the City of Los Angeles Police Department, is the law enforcement agency for the city of Los Angeles, California, United States.  With 9,843 officers and 2,773 civilian staff, it is the third-largest municipal police department in the United States, after the New York City Police Department and the Chicago Police Department.  The department serves an area of 498 sqmi and a population of 4,030,904 people.

Athens-Clarke County Police Department: The Athens-Clarke County Police Department (ACCPD) is the primary law enforcement agency for the Unified Government of Athens-Clarke County, Georgia.  As of July 2015, R. Scott Freeman was sworn as the new Chief of Police.  The department serves a population of more than 115,452 people.

University of Houston Police Department: The University of Houston Police Department (UHPD) is the campus police for the University of Houston.  The officers of UHPD are peace officers of the State of Texas whose primary jurisdiction is any county in which the University of Houston owns, leases, rents, or controls property.  Their authority is derived from the Texas Education Code Sec. 51.203 which allows the University of Houston System Board of Regents to employ and commission peace officers.  The University of Houston Police Department serves as a division of the University of Houston Department of Public Safety (UHDPS).  Its headquarters are at 4051 Wheeler Street (changed from 3869 Wheeler Street in July 2015 in a campus address reorganization) at the southwest corner of the University of Houston campus in the Stadium District.

Phoenix Police Department: The Phoenix Police Department is the law enforcement agency responsible for the city of Phoenix, Arizona.  Today , the Phoenix Police Department comprises more than 2,900 officers and more than 1,000 support personnel.  The department serves a population of more than 1.6 million and patrol almost 516 sqmi of the sixth largest city in the United States.

Supporting paragraphs: Annapolis Police Department Annapolis, Maryland
Answer: Anne Arundel County