New Jersey General Assembly District 21
Leans Democratic — shifted 12.4pp toward Republicans in 2024 — 225K residents
New Jersey General Assembly District 21 is a state house district that has a population of 224,546. In the 2024 presidential election, it voted Democratic with a margin of D+12.0. Akashic Edge tracks 5 presidential elections here, dating back to 2008.
| Year | Dem % | Rep % | Margin | Swing |
|---|---|---|---|---|
| 2024 | 54.6% | 42.6% | D+12.0 | R+12.4 |
| 2020 | 61.5% | 37.1% | D+24.3 | D+16.7 |
| 2016 | 51.9% | 44.3% | D+7.7 | D+18.4 |
| 2012 | 44.7% | 55.3% | R+10.7 | R+6.1 |
| 2008 | 47.2% | 51.7% | R+4.6 | — |
What defines NJ-HD-21?
NJ-HD-21 has been won by both parties in the last 5 presidential elections (3D, 2R) — a genuine swing geography. It has a working-class electorate (0% college-educated) — a demographic increasingly aligned with Republicans nationwide.
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Key Insights
- Swung 12.4 points toward Republican between 2020 and 2024
- Won by both parties in recent history — Democrats most recently in 2024, Republicans in 2012
- Highly elastic — margins have ranged 35.0 points across recent elections, suggesting a volatile electorate
Who Lives Here
| Group | NJ-HD-21 | State | National |
|---|---|---|---|
White (Non-Hispanic) | 69.1% | 50.9% | 57.4% |
Asian | 11.9% | 10.1% | 6.0% |
Hispanic / Latino | 11.6% | 22.5% | 19.3% |
Multiracial / Other | 3.8% | 3.1% | 4.0% |
Black / African American | 3.3% | 12.8% | 12.2% |
Native American / Alaska Native | 0.2% | 0.6% | 0.9% |
Who lives in New Jersey General Assembly District 21? 224,546 residents as of the 2020 Census.
Demographics
Scale, voting-age share, and this geography's footprint inside the national electorate.
Income, attainment, and ownership indicators that often shape coalition structure and turnout behavior.
Age structure, language use, and nativity signals that explain how this geography differs from state and nation.
Turnout in NJ-HD-21
How competitive is NJ-HD-21?
Other New Jersey State House Districts
39 total| Name | Margin ↓ |
|---|---|
| NJ-HD-28 | D+76.7 |
| NJ-HD-32 | D+43.2 |
| NJ-HD-15 | D+41.5 |
| NJ-HD-29 | D+41.0 |
| NJ-HD-34 | D+40.2 |
| NJ-HD-17 | D+32.0 |
| NJ-HD-27 | D+31.1 |
| NJ-HD-05 | D+29.1 |
| NJ-HD-07 | D+28.8 |
| NJ-HD-06 | D+27.6 |
| NJ-HD-31 | D+27.5 |
| NJ-HD-22 | D+24.8 |
| NJ-HD-20 | D+24.2 |
| NJ-HD-37 | D+23.1 |
| NJ-HD-16 | D+13.8 |
| NJ-HD-33 | D+12.8 |
| NJ-HD-35 | D+12.4 |
| NJ-HD-14 | D+10.8 |
| NJ-HD-18 | D+10.2 |
| NJ-HD-11 | D+4.2 |
| NJ-HD-02 | D+1.5 |
| NJ-HD-04 | D+1.3 |
| NJ-HD-19 | D+1.0 |
| NJ-HD-08 | D+1.0 |
| NJ-HD-38 | E |