Details of Adopted 2012 Congressional Redistricting Plan


(with thanks to The Washington Post’s October 20 breakdown and interactive map)

In total, 1.6 million Maryland residents were moved from one district to another, out of a total population of 5.7 million.  See Map and more details

New Congressional Districts

New US Congressional Districts in MD


Old Congressional DistrictsUS Congressional Districts in MD (2001-2011)

District 1:(purple) It expands westward along the state’s northern border. It gains some white and Republican voters, becoming the state’s most Republican district. [Caroline, Cecil, Dorchester, Kent, Queen Anne’s, Somerset, Talbot, Wicomico, Worcester counties, and parts of Baltimore, Carroll, and Harford counties.]

District 2: (red) 276,000 people move in and out of the district, but the racial, ethnic and political attributes change little. [Parts of Baltimore City and parts of Anne Arundel, Baltimore, Harford and Howard counties]
District 3: )lt. blue) One third of the residents of the newly and widely redrawn 3rd District were imported from other districts. The share of Hispanic and Asian populations increased about 2%, with a similar decline in white voters. [Parts of Anne Arundel, Baltimore, Howard and Montgomery counties and parts of Baltimore City]
District 4: (green) More than 600,000 people move in and out of this district. It gains residents in Anne Arundel and Prince George's counties, and loses them in Montgomery. White population share increases by 7 percent. Democratic voters remain a majority. [Parts of Anne Arundel and Prince George’s counties]
District 5: (pink or gray) The least changed district in the plan, it gains 26,000 new people and loses 73,000 from the district. [Calvert County, Charles County, St. Mary’s County, and parts of Anne Arundel and Prince George’s counties]
District 6: (teal) The state’s most Republican district prior to redistricting, it now becomes a majority Democratic district, by adding minorities from Montgomery County, and loses people to Frederick and Carroll Counties. 349,000 people were added to the district and 360,000 people were removed from the district. [Allegany County, Garrett County, Washington County and parts of Frederick and Montgomery counties]
District 7: (dk. blue) This district changes shape in Baltimore and Howard Counties and gains some white population. Democrats are still in the majority. [Parts of Baltimore City, parts of Baltimore and Howard counties],

District 8: (yellow) Created out of the previous 6th district, this district has a net gain of 115,000 white residents, mostly from Frederick and Carroll County. It has a net loss of 119,000 minority residents, mostly from Montgomery County. [Parts of Carroll, Frederick and Montgomery counties]