Rhode Island

Redistricting Algorithm

✱Redistricting was done, keep in mind that this state is notoriously hard to programmatically redistrict due to geographical distortion and/or data inconsistency in the census

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

0.29

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

0.28

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

-25.7

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

cannot calculate - Dem. won every district

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

-0.03

☞ Dissimilarity Index Measurement of minority representation within a district
  • Hispanic: 0.09
  • African American: 0.17
  • East & South Asian: 0.07
  • Native American: 0.02
  • Other: 0.02

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

0.34

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

1.31

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

cannot calculate - Dem. won every district

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

-0.01

☞ Dissimilarity Index Measurement of minority representation within a district
  • Hispanic: 0.15
  • African American: 0.25
  • East & South Asian: 0.04
  • Native American: N/A
  • Other: 0.06

Rhode Island Redistricting Laws After 2020 Census


  • Rhode Island enacted new congressional district boundaries on February 16th, 2022.
  • Rhode Island enacted new legislative district boundaries on February 16th, 2022.
  • Rhode Island has 2 United States representatives and 113 state legislators.

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