McLean Police Department 1437 Balls Hill Rd, McLean, VA22101 Fairfax County is divided into eight police districts. McLean is one of those. This diverse police district includes the…More posh communities of McLean and Great Falls and the increasingly immigrant-rich communities of Merrifield, Dunn Loring and Falls Church. The district includes members of Congress, high-ranking federal government officials and recent immigrants from India, China and El Salvador. The McLean District station is in the Fairfax County Government Center. The district has 132 sworn officers.