2024 results by precinct
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Margin—
Turnout—
Harris +50Trump +50
Real precinct boundaries. Hover for vote totals.
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | D | 113,997 | 70,345 | 190,573 | |
| 2020 | D | 131,639 | 69,306 | 206,831 | |
| 2016 | D | 102,360 | 51,920 | 168,150 | |
| 2012 | D | 96,783 | 52,092 | 152,840 | |
| 2008 | D | 102,095 | 56,035 | 161,588 | |
| 2004 | D | 85,096 | 62,301 | 148,837 | |
| 2000 | D | 75,116 | 51,604 | 131,735 | |
| 1996 | D | 64,644 | 40,742 | 117,279 | |
| 1992 | D | 64,320 | 38,883 | 132,111 | |
| 1988 | D | 54,344 | 50,314 | 106,088 | |
| 1984 | R | 41,982 | 51,678 | 94,798 | |
| 1980 | R | 30,952 | 40,919 | 80,676 | |
| 1976 | D | 33,682 | 26,136 | 61,644 | |
| 1972 | R | 24,766 | 31,314 | 57,965 | |
| 1968 | D | 27,271 | 17,683 | 50,952 | |
| 1964 | D | 34,930 | 15,263 | 50,240 | |
| 1960 | D | 26,977 | 18,751 | 45,869 | |
| 1956 | D | 24,903 | 17,865 | 42,863 | |
| 1952 | D | 25,569 | 18,456 | 44,238 | |
| 1948 | D | 23,257 | 12,345 | 36,624 | |
| 1944 | D | 24,335 | 10,361 | 34,801 | |
| 1940 | D | 15,054 | 6,081 | 21,328 | |
| 1936 | D | 13,459 | 3,603 | 17,244 | |
| 1932 | D | 9,712 | 4,382 | 14,461 | |
| 1928 | R | 6,278 | 7,061 | 13,497 | |
| 1924 | R | 957 | 4,782 | 9,962 | |
| 1920 | R | 2,954 | 7,102 | 10,965 | |
| 1916 | D | 5,678 | 3,536 | 9,728 | |
| 1912 | D | 3,650 | 0 | 7,993 | |
| 1908 | R | 2,033 | 3,115 | 5,693 | |
| 1904 | R | 1,555 | 3,176 | 5,175 | |
| 1900 | R | 2,262 | 3,114 | 5,625 | |
| 1896 | R | 2,284 | 2,702 | 5,080 | |
| 1892 | R | 2,174 | 2,403 | 4,883 | |
| 1888 | R | 2,158 | 2,231 | 4,492 | |
| 1884 | R | 1,977 | 2,382 | 4,443 | |
| 1880 | R | 1,959 | 1,963 | 3,942 | |
| 1876 | R | 1,753 | 1,951 | 3,704 |
Demographics
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
American
100.0%
Polish
1.1%
African American
10.2%
Multiple ancestry combinations reported; no single grouping above 1%.
American Indian, Alaska Native, Native Hawaiian, and Pacific Islander combined.
Source · American Community Survey 5-year estimates, 2024 release. Ancestry is a self-reported, multiple-response item; ancestry percentages do not sum to the parent race percentage.
Age distribution by sex
Median age: 39.2 in this county, 39.1 nationally
Male
Age
Female
85+
75–84
65–74
55–64
45–54
35–44
25–34
18–24
5–17
<5
Source · American Community Survey 5-year estimates, 2024 release.
Median household income
2024 inflation-adjusted dollars
$100,401
Solano County ranks in the top 5% of US counties.
Solano County$100,401
California$99,122
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
Poverty rate
All persons below federal poverty line
10.0%
Children face moderate poverty.
Children under 1818.0%
Working age (18–64)100.0%
Seniors (65+)18.0%
Source · American Community Survey 5-year estimates, 2024 release.
Language at home
Population aged 5 and older
0.0%
speak English only
Source · ACS 5-year estimates, 2024.
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 67.6% of residents not counted as adherents by any reporting body.
Home to Travis Air Force Base, Solano County blends a sizable active-duty and veteran population with expanding exurban communities, yet still returned a Democratic presidential margin of 23 points in 2024.
The Democratic margin in Solano County reached its widest at fifty-seven points in 1936. The margin in 2024 was twenty-three points — still decisive.
Solano County's loyalty is rooted in its place. Median household income of $100,401, a 39% non-Hispanic-white share, and a population of 451,918 together describe a community whose political habits are deeply settled. The county's voting pattern over the last decade is most similar to that of Los Angeles County and Norfolk city.
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