California Assembly District 21
Safe Democratic — shifted 7.2pp toward Republicans in 2024 — 492K residents
California Assembly District 21 is a state house district that has a population of 492,144. In the 2024 presidential election, it voted Democratic with a margin of D+50.6. Akashic Edge tracks 5 presidential elections here, dating back to 2008.
| Year | Dem % | Rep % | Margin | Swing |
|---|---|---|---|---|
| 2024 | 73.6% | 23.0% | D+50.6 | R+7.2 |
| 2020* | 77.9% | 20.2% | D+57.8 | D+1.0 |
| 2016* | 75.9% | 19.1% | D+56.8 | D+9.9 |
| 2012* | 73.4% | 26.6% | D+46.9 | 0.0 |
| 2008* | 73.3% | 26.4% | D+46.8 | — |
* Pre-2022 results projected onto current district boundaries. Actual boundaries at the time of the election may have differed.
What defines CA-HD-21?
It has a majority-minority electorate where racial demographics are the primary driver of partisan lean.
Similar state house districts
Ask the Historian
Key Insights
- Has voted Democratic in the last 5 presidential elections
- Latest election (2024) was a Democratic landslide with a 50.6% margin
- Turnout decreased by 68.8 percentage points since the previous presidential election
Who Lives Here
| Group | CA-HD-21 | State | National |
|---|---|---|---|
White (Non-Hispanic) | 36.7% | 33.8% | 57.4% |
Hispanic / Latino | 27.7% | 40.2% | 19.3% |
Asian | 26.3% | 15.5% | 6.0% |
Multiracial / Other | 4.6% | 3.5% | 4.0% |
Black / African American | 2.2% | 5.4% | 12.2% |
Native Hawaiian / Pacific Islander | 1.5% | 0.4% | 0.2% |
Native American / Alaska Native | 1.0% | 1.3% | 0.9% |
Who lives in California Assembly District 21? 492,144 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 CA-HD-21
How competitive is CA-HD-21?
Other California State House Districts
79 total| Name | Margin ↓ |
|---|---|
| CA-HD-18 | D+72.1 |
| CA-HD-14 | D+71.3 |
| CA-HD-17 | D+67.3 |
| CA-HD-55 | D+62.2 |
| CA-HD-19 | D+57.5 |
| CA-HD-61 | D+56.8 |
| CA-HD-12 | D+55.5 |
| CA-HD-23 | D+54.5 |
| CA-HD-52 | D+53.6 |
| CA-HD-57 | D+52.6 |
| CA-HD-51 | D+52.0 |
| CA-HD-26 | D+45.3 |
| CA-HD-28 | D+43.9 |
| CA-HD-54 | D+43.8 |
| CA-HD-65 | D+43.5 |
| CA-HD-20 | D+40.4 |
| CA-HD-69 | D+38.2 |
| CA-HD-16 | D+36.5 |
| CA-HD-78 | D+36.3 |
| CA-HD-02 | D+34.9 |
| CA-HD-06 | D+34.0 |
| CA-HD-44 | D+32.9 |
| CA-HD-25 | D+32.4 |
| CA-HD-15 | D+31.8 |
| CA-HD-24 | D+30.7 |