† Citizen voting-age population estimated for prior cycles; 2004 predates the ACS and is extrapolated. Source: ACS 5-year, table B05003.
——
D+60R+60
20042024
Boundary by 2024 margin · Precinct returns · VEST · MIT Election Lab
People and households
Who lives here
Exact values for this place, its state, and the United States.
Race · ethnicity · ancestry
Communities and origins
GroupSunnyvaleCaliforniaUnited States
Chinese14.0%3.9%1.3%
Asian Indian13.0%2.3%1.4%
Vietnamese9.0%1.7%0.6%
Filipino5.2%3.3%0.9%
Korean2.3%1.2%0.4%
Japanese1.5%0.6%0.2%
Taiwanese1.4%0.3%—
Pakistani0.4%——
German5.6%6.8%12.5%
English5.2%6.3%9.5%
Irish4.7%5.9%9.4%
Italian3.4%3.4%4.8%
American1.8%2.8%5.3%
French1.3%1.3%1.6%
Portuguese1.1%——
Iranian1.1%——
Mexican13.5%32.3%11.3%
Salvadoran0.5%2.0%0.7%
Colombian0.4%0.3%0.4%
Spaniard0.3%0.3%—
Puerto Rican0.3%0.6%1.8%
Guatemalan0.3%1.3%0.5%
Spanish0.3%0.3%—
Nicaraguan0.2%0.3%—
African American†1.2%4.4%9.9%
Aztec2.8%0.3%—
Hispanic or Latino counts residents of any race; the race groups count only their non-Hispanic residents, so the groups are mutually exclusive and sum to 100%. Expand a row to see ancestries reported within that group.
Age and life stage
Measure
Sunnyvale
California
United States
Median age
35.2
37.9
39.1
Age 18–24
6.4%
9.1%
9.2%
Age 65 and older
13.0%
15.6%
17.2%
Household economy
Measure
Sunnyvale
California
United States
Median household income
$186,170
$99,122
$84,427
Poverty rate
5.8%
12.0%
12.5%
Bachelor's degree or higher (25+)
69.3%
36.6%
35.6%
Languages at home
Measure
Sunnyvale
California
United States
Speaks a non-English language at home
60.5%
44.4%
22.3%
Spanish
12.4%
28.4%
13.6%
Other Indo-European
11.1%
3.4%
2.0%
Chinese (incl. Mandarin & Cantonese)
16.1%
3.5%
1.1%
Other Asian & Pacific Island
7.7%
2.0%
1.1%
Religious landscape
Measure
Sunnyvale
California
United States
Catholic
—
26.2%
18.6%
Evangelical Protestant
—
9.0%
16.5%
Unclaimed / not counted
—
55.2%
51.5%
American Community Survey 2024 5-year (CVAP, income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024 · 2020 U.S. Religion Census (ASARB) — congregational adherents; unclaimed is the residual not counted by congregations.
Sunnyvale, California
presidential history
Presidential margin, 2004–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
2004
+34.6%
2008
+46.3%
2012
+47.4%
2016
+56.7%
2020
+55.8%
2024
+48.4%
DemocraticRepublican
6 presidential elections
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024). Swing · margin change from the prior cycle. vs U.S. · margin relative to the national result that year. Third-party votes in 2012 are allocated from certified county totals by this place's share of each county's two-party vote — that cycle's precinct source records two-party splits. † 2004 sub-county results are estimated: the source's block-level detail for this cycle was unreliable — either county/municipality-level consolidated reporting (COVID-era) or a precinct-to-block allocation that misplaced votes — so the figures are allocated from the constituent county totals in proportion to the place and scaled to certified totals.
Year
Won
Democratic
Republican
Other
Margin
Swing
vs U.S.
Total
D
72.2%Harris38,466
23.8%Trump12,669
4.0%
D+48.4
R+7.4
D+49.9
53,284
D
76.7%Biden44,895
20.9%Trump12,242
2.4%
D+55.8
R+1.0
D+51.3
58,539
D
75.2%Clinton37,252
18.5%Trump9,156
6.3%
D+56.7
D+9.3
D+54.7
49,513
D
72.3%Obama33,019
24.8%Romney11,348
2.9%
D+47.4
D+1.2
D+43.6
45,687
D
73.0%Obama34,680
26.7%McCain12,703
0.3%
D+46.3
D+11.7
D+39.0
47,506
D
66.7%Kerry29,304
32.1%Bush14,110
1.2%
D+34.6
—
D+37.0
43,927
Sunnyvale's workforce skews heavily toward tech and semiconductor industries, producing a highly educated, high-turnout electorate where registered Democrats outnumber Republicans by roughly 3-to-1 but independent registration has grown steadily.
Across the recorded series it reached a Democratic high of 56.7 points in 2016. Between 2020 and 2024 the city moved 7.4 points toward the Republican candidate; the 2024 margin was 48.4 points.
A population of 154,236, a 28% non-Hispanic-white share, and a median household income of $186,170 describe the city. The city's voting pattern over the last decade is most similar to that of Santa Clara and Mountain View.
Akashic
Political twins — cities
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.
In 2024, Sunnyvale, California voted Democratic by 48.4 points (D+48.4), carried by the Democratic candidate. Out of 53,284 votes cast, 38,466 went Democratic and 12,669 went Republican.
How many people live in Sunnyvale, California?
Sunnyvale, California has a population of 154,236 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Sunnyvale, California?
Median household income in Sunnyvale, California is $186,170 — above the national median of $80,734. The California state median is $99,122.
What is the political history of Sunnyvale, California?
Akashic tracks 6 presidential elections in Sunnyvale, California from 2004 to 2024. Of those, 6 went Democratic and 0 went Republican.
