The Planning Department maintains population data for the County as released from the U.S. Census Bureau and the University of Virginia Weldon Cooper Center. Staff monitors the release of census data and annual estimates to evaluate current demographic and socioeconomic statistics and trends. The Department provides census data to the public on a fairly regular basis. Every ten years, the Planning Department provides technical support for the County’s Redistricting Committee. The County is required by State law to redraw districts provide proportional representation in all Magisterial Districts. New district lines are based on the biennial census data and reflect changes in the population of the County.