- Lead
- 2,079
- Total
- 4,994
- vs nation
- D+43.1
- Turnout
- —
Signal Hill, CA
President margin by year
Place winner margin
President results by year
Vote totals, margins, and source status
- Lead
- 2,732
- Total
- 5,541
- vs nation
- D+44.9
- Turnout
- —
- Lead
- 2,062
- Total
- 4,312
- vs nation
- D+45.7
- Turnout
- —
- Lead
- 1,703
- Total
- 3,967
- vs nation
- D+39.1
- Turnout
- —
- Lead
- 1,674
- Total
- 4,036
- vs nation
- D+34.2
- Turnout
- —
- Lead
- 1,151
- Total
- 3,941
- vs nation
- D+31.7
- Turnout
- —
Key facts
- 2024 presidential margin
- D+41.6MIT Election Lab
- Population
- 11,4682024 5-year
- Median household income
- $113,2982024 5-year
- White (non-Hispanic)
- 25.3%2024 5-year
- Black
- 7.4%2024 5-year
- Hispanic / Latino
- 37.8%2024 5-year
- Peak Democratic margin
- D+49.3 in 2020MIT Election Lab
- Most similar
- Riverdale Park, MD · twin score 94.9
Presidential margin, 2004–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 2004 | +29.2% |
| 2008 | +41.5% |
| 2012 | +42.9% |
| 2016 | +47.8% |
| 2020 | +49.3% |
| 2024 | +41.6% |
| Year | Won | Democratic | Republican | Other | Margin | Swing | vs U.S. | Total |
|---|---|---|---|---|---|---|---|---|
| D | 69.1%Harris3,451 | 27.5%Trump1,372 | 3.4% | D+41.6 | — | D+43.1 | 4,994 | |
| D | 73.5%Biden4,073 | 24.2%Trump1,341 | 2.3% | D+49.3 | D+1.5 | D+44.9 | 5,541 | |
| D | 70.6%Clinton3,044 | 22.8%Trump982 | 6.6% | D+47.8 | — | D+45.7 | 4,312 | |
| D | 70.2%Obama2,786 | 27.3%Romney1,083 | 2.5% | D+42.9 | — | D+39.1 | 3,967 | |
| D | 70.5%Obama2,846 | 29.0%McCain1,172 | 0.4% | D+41.5 | — | D+34.2 | 4,036 | |
| D | 63.7%Kerry2,510 | 34.5%Bush1,359 | 1.8% | D+29.2 | — | D+31.7 | 3,941 |
U.S. House
Each row shows U.S. House votes counted inside this Place. “Vote lead” is the local lead here, not necessarily the winner of the full contest.
| Year | Vote lead | Democratic | Republican | Total |
|---|---|---|---|---|
| 2024 | D | 71.2%3,376 | 28.8%1,366 | 4,742 |
| 2020 | D | 74.8%3,849 | 25.2%1,297 | 5,146 |
Signal Hill is an independent city fully encircled by Long Beach, a geographic quirk rooted in the 1920s oil boom that shaped its incorporation. Its small, dense electorate punches above its size in local ballot measure contests tied to land use and development.
Across the recorded series it reached a Democratic high of 49.3 points in 2020. Between 2020 and 2024 the city moved 7.7 points toward the Republican candidate; the 2024 margin was 41.6 points.
A population of 11,468, a 25% non-Hispanic-white share, and a median household income of $113,298 describe the city. The city's voting pattern over the last decade is most similar to that of Riverdale Park and Beltsville.
The cities whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
Browse places by community — income, education, race & ethnicity, language — all community cuts →
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →
Signal Hill, California. Akashic. https://akashic.app/city/0671876/. Accessed May 20, 2026. License: CC BY 4.0.