Colorado

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

0.40

☞ 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

-3.98

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

3.25

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

2.16

☞ Dissimilarity Index ⓘ Measurement of minority representation within a district
  • Hispanic: 0.21
  • African American: 0.40
  • East & South Asian: 0.15
  • Native American: 0.12
  • Other: 0.13

FairyMandered Districts Scores

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

0.52

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

0.29

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

6.21

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

6.43

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

-1.26

☞ Dissimilarity Index ⓘ Measurement of minority representation within a district
  • Hispanic: 0.17
  • African American: 0.57
  • East & South Asian: 0.19
  • Native American: 0.16
  • Other: 0.14

Colorado Redistricting Laws After 2020 Census

  • Colorado Supreme Court approved the congressional redistricting plan on November 1st, 2021.
  • Colorado Supreme Court approved the state legislative redistricting plan on November 15th, 2021.
  • Colorado has 8 United States representatives and 100 state legislators.
click here to learn more about Colorado's redistricting laws

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