Tennessee

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

0.37

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

0.20

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

17.34

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

8.97

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

3.78

☞ Dissimilarity Index Measurement of minority representation within a district
  • Hispanic: 0.19
  • African American: 0.38
  • East & South Asian: 0.21
  • Native American: 0.06
  • Other: 0.06

FairyMandered Districts Scores

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

0.44

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

0.23

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

4.89

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

-7.18

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

4.17

☞ Dissimilarity Index Measurement of minority representation within a district
  • Hispanic: 0.13
  • African American: 0.46
  • East & South Asian: 0.23
  • Native American: N/A
  • Other: 0.21

Tennessee Redistricting Laws After 2020 Census


  • Gov. Bill Lee (R) signed new congressional districts into law on February 6th, 2022.
  • Tennessee has 9 United States representatives and 132 state legislators.

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