† 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
GroupFairfieldCaliforniaUnited States
Mexican24.5%32.3%11.3%
Salvadoran2.0%2.0%0.7%
Guatemalan1.0%1.3%0.5%
Puerto Rican0.9%0.6%1.8%
Spaniard0.8%0.3%—
Spanish0.7%0.3%—
Nicaraguan0.6%0.3%—
Peruvian0.3%——
German6.6%6.8%12.5%
Irish6.1%5.9%9.4%
English6.1%6.3%9.5%
Italian3.5%3.4%4.8%
American2.3%2.8%5.3%
French1.6%1.3%1.6%
Scottish1.2%0.9%1.3%
Portuguese1.2%——
Filipino12.3%3.3%0.9%
Chinese1.6%3.9%1.3%
Asian Indian1.3%2.3%1.4%
Vietnamese0.8%1.7%0.6%
Japanese0.6%0.6%0.2%
Korean0.3%1.2%0.4%
African American†12.4%4.4%9.9%
African1.3%0.3%0.5%
Jamaican0.4%—0.4%
Aztec2.4%0.3%—
Samoan2.4%——
Chamorro2.4%——
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
Fairfield
California
United States
Median age
36.9
37.9
39.1
Age 18–24
9.2%
9.1%
9.2%
Age 65 and older
14.9%
15.6%
17.2%
Household economy
Measure
Fairfield
California
United States
Median household income
$101,895
$99,122
$84,427
Poverty rate
10.2%
12.0%
12.5%
Bachelor's degree or higher (25+)
26.6%
36.6%
35.6%
Languages at home
Measure
Fairfield
California
United States
Speaks a non-English language at home
35.9%
44.4%
22.3%
Spanish
21.8%
28.4%
13.6%
Other Indo-European
2.2%
3.4%
2.0%
Tagalog (incl. Filipino)
6.3%
2.1%
0.6%
Other Asian & Pacific Island
2.3%
2.0%
1.1%
Religious landscape
Measure
Fairfield
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.
Fairfield, California
presidential history
Presidential margin, 2004–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
2004
+14.4%
2008
+28.2%
2012
+30.1%
2016
+34.1%
2020
+35.0%
2024
+26.7%
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
61.7%Harris26,953
35.0%Trump15,310
3.2%
D+26.7
R+8.4
D+28.1
43,681
D
66.3%Biden32,997
31.3%Trump15,556
2.4%
D+35.0
D+1.0
D+30.6
49,771
D
64.1%Clinton24,408
30.0%Trump11,424
6.0%
D+34.1
D+4.0
D+32.0
38,106
D
63.8%Obama23,034
33.6%Romney12,154
2.6%
D+30.1
D+1.9
D+26.3
36,125
D
63.9%Obama23,190
35.7%McCain12,964
0.4%
D+28.2
D+13.8
D+20.9
36,285
D
56.8%Kerry19,383
42.4%Bush14,466
0.8%
D+14.4
—
D+16.9
34,112
Home to Travis Air Force Base, Fairfield blends a transient military population with a growing Latino and Asian-American civilian workforce — a demographic mix that has gradually loosened its historically competitive registration balance toward Democratic pluralities.
Across the recorded series it reached a Democratic high of 35.0 points in 2020. Between 2020 and 2024 the city moved 8.4 points toward the Republican candidate; the 2024 margin was 26.7 points.
A population of 120,785, a 28% non-Hispanic-white share, and a median household income of $101,895 describe the city. The city's voting pattern over the last decade is most similar to that of Sacramento and Long Beach.
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, Fairfield, California voted Democratic by 26.7 points (D+26.7), carried by the Democratic candidate. Out of 43,681 votes cast, 26,953 went Democratic and 15,310 went Republican.
How many people live in Fairfield, California?
Fairfield, California has a population of 120,785 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Fairfield, California?
Median household income in Fairfield, California is $101,895 — above the national median of $80,734. The California state median is $99,122.
What is the political history of Fairfield, California?
Akashic tracks 6 presidential elections in Fairfield, California from 2004 to 2024. Of those, 6 went Democratic and 0 went Republican.
