Maryland

Redistricting Algorithm

Current Congressional Districts

FairyMandered Districts

Demographic Distribution For Current Congressional Districts

FYI: % Based on Registered Voter

Demographic Distribution For FairyMandered Districts




FYI: % Based on Registered Voter

Fairness Metrics

Current Congressional Districts Scores

☞ Reock Score ⓘ Measurement of compactness for each district that ranges from 0 to 1

0.33

☞ Polsby Popper ⓘ Measurement of compactness between a district's area and the square of its perimeter

0.26

☞ Efficiency Gap ⓘ Measurement of competitiveness where wasted votes in an election quantify the degree of partisanship

-10.92

☞ Lopsided Margin ⓘ Measurement which calculates difference between the average percentages by which each part won in a district

4.24

☞ Mean-Median ⓘ Difference between the median and mean vote-share across all districts for one party

4.24

☞ Dissimilarity Index ⓘ Measurement of minority representation within a district
  • Hispanic: 0.34
  • African American: 0.41
  • East & South Asian: 0.25
  • Native American: 0.02
  • Other: 0.19

FairyMandered Districts Scores

☞ Reock Score ⓘ Measurement of compactness for each district that ranges from 0 to 1

0.45

☞ Polsby Popper ⓘ Measurement of compactness between a district's area and the square of its perimeter

0.27

☞ Efficiency Gap ⓘ Measurement of competitiveness where wasted votes in an election quantify the degree of partisanship

0.10

☞ Lopsided Margin ⓘ Measurement which calculates difference between the average percentages by which each part won in a district

18.19

☞ Mean-Median ⓘ Difference between the median and mean vote-share across all districts for one party

-3.99

☞ Dissimilarity Index ⓘ Measurement of minority representation within a district
  • Hispanic: 0.32
  • African American: 0.41
  • East & South Asian: 0.34
  • Native American: N/A
  • Other: 0.28

Maryland Redistricting Laws After 2020 Census

  • Maryland adopted new congressional district boundaries on April 4, 2022.
  • Maryland adopted legislative maps on January 27, 2022.
  • Maryland has 8 United States representatives and 188 state legislators.
click here to learn more about maryland's redistricting laws

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