New Jersey
12 congressional districts.
Map
- Very compact (0 to 19)
- Compact (20 to 39)
- Middle (40 to 59)
- Irregular (60 to 79)
- Very irregular (80 to 100)
Select a district for details.
The area outlined with dashes on the map, enlarged so its smaller districts can be seen.
Map used in 2026
2021 Congressional Redistricting Commission plan
- Drawn by
- a redistricting commission
- Enacted
- 2021-12-22
- Changed since 2024
- No
Source: New Jersey Redistricting Commission (checked 2026-11-04)
Districts
| District | Irregularity | National rank |
|---|---|---|
| NJ-01 | Irregularity score 27 Compact | 334th least compact |
| NJ-02 | Irregularity score 50 Middle of the pack | 206th least compact |
| NJ-03 | Irregularity score 68 Irregular | 116th least compact |
| NJ-04 | Irregularity score 31 Compact | 317th least compact |
| NJ-05 | Irregularity score 64 Irregular | 133rd least compact |
| NJ-06 | Irregularity score 95 Very irregular | 13th least compact |
| NJ-07 | Irregularity score 54 Middle of the pack | 184th least compact |
| NJ-08 | Irregularity score 91 Very irregular | 20th least compact |
| NJ-09 | Irregularity score 87 Very irregular | 41st least compact |
| NJ-10 | Irregularity score 87 Very irregular | 42nd least compact |
| NJ-11 | Irregularity score 40 Middle of the pack | 261st least compact |
| NJ-12 | Irregularity score 73 Irregular | 97th least compact |
Scores describe shape, not intent. How scores work
New Jersey's senators
- Cory A. Booker, DemocratRe-elected November 3, 2026.
- Andy Kim, Democrat
Senators are elected by the whole state, so district lines don't change who they are. Senators serving as of November 6, 2026. Senators elected in November 2026 take office January 3, 2027. Where this comes from
Partisan fairness
How the 2024 presidential vote splits across these districts. Kamala Harris (Democrat) won 53.0% of the two-party vote and carried 8 of 12 districts.
- Efficiency gap
- 7.9% Favors Democrats
Counts each party's wasted votes: votes for a losing candidate, plus a winner's votes beyond the half needed to win. The gap is the difference between the two parties' wasted votes, as a share of all votes.
- Mean-median difference
- 1.5 points Favors Republicans
The gap between a party's average vote share across the districts and its share in the middle (median) district. When the middle district leans away from a party's average, that party's voters are packed into a few lopsided districts.
- Declination
- 0.06 Favors Democrats
Compares how lopsided each party's wins are. A party that wins a few districts by huge margins and loses the rest narrowly is at a disadvantage. Runs from 0 (even) to 1.
Votes are 2024 presidential results by precinct, added up within each district. This state used the same districts in 2024 and 2026. These measures show how a map turns one election's votes into seats. They don't show why the lines were drawn, and they shift from one election to the next. How fairness scores work