New Jersey

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

0.38

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

0.21

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

-9.34

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

0.03

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

0.83

☞ Dissimilarity Index ⓘ Measurement of minority representation within a district
  • Hispanic: 0.36
  • African American: 0.34
  • East & South Asian: 0.03
  • Native American: 0.21
  • Other: 0.22

FairyMandered Districts Scores

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

0.43

☞ 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

3.03

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

16.00

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

0.40

☞ Dissimilarity Index ⓘ Measurement of minority representation within a district
  • Hispanic: 0.34
  • African American: 0.40
  • East & South Asian: 0.26
  • Native American: N/A
  • Other: 0.21

New Jersey Redistricting Laws After 2020 Census

  • New Jersey Congressional Redistricting Commission enacted a new congressional map on December 22nd, 2021.
  • New Jersey Legislative Reapportionment Commission voted to approve a new set of state legislative maps on February 18th, 2022.
  • New Jersey has 12 United States representatives and 120 state legislators.
click here to learn more about new jersey's redistricting laws

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