The Mid-County Regional Service Center (RSC) serves a population of approximately 220,000 individuals and businesses in an area that extends from the Beltway to Howard County and includes such communities as Ashton, Aspen Hill, Brookeville, Capital View, Derwood, Forest Glen, Glenmont, Kemp Mill, Kensington, Layhill, Norbeck, Olney, Sandy Spring, Upper Rock Creek, and Wheaton.