Redistricting is conducted after each decennial census. The U.S. Constitution mandates a
periodic census of the country. The population is enumerated every 10 years, and the results are
used to allocate Congressional seats, electoral votes, and government program funding. The census
is performed by the United States Census Bureau. Based upon the 2010 data, legislative bodies will redistrict in accordance with their jurisdictional requirements. The County Council completed the task of redistricting the seven Council districts with the adoption of Bill 59-11 on October 3, 2011. The councilmanic boundaries established by the bill and as depicted in the map become effective for the next election of Council members in 2014. Baltimore County Redistricting Manual
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