Council District boundaries were adopted by the Council in 2012 after the decennial Census. District 4 stretches up Georgia Ave. from Wheaton to the Howard County border. The southern part of the district includes Randolph Hills, Kensington Heights, Aspen Hill, Glenmont, Layhill Village and Colesville (west of MD 650). Moving north, the district includes Ashton, Sandy Spring and Olney. It also includes rural communities up-county, such as Sunshine, Etchison, Brookeville and Laytonsville. Most of the eastern boundary of District 4 is MD 650 (New Hampshire Ave.). The western boundary is MD 124 (Woodfield Rd.) until just south of Watkins Rd.