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 | 43,212 | 20,357 | 65,561 | |
| 2020 | D | 49,817 | 20,676 | 72,150 | |
| 2016 | D | 39,199 | 17,411 | 61,372 | |
| 2012 | D | 35,870 | 19,526 | 56,968 | |
| 2008 | D | 38,849 | 19,484 | 59,642 | |
| 2004 | D | 33,666 | 22,059 | 56,599 | |
| 2000 | D | 28,097 | 20,633 | 51,724 | |
| 1996 | D | 24,588 | 17,439 | 48,319 | |
| 1992 | D | 24,215 | 15,662 | 53,455 | |
| 1988 | R | 22,283 | 23,235 | 46,290 | |
| 1984 | R | 18,599 | 26,322 | 45,561 | |
| 1980 | R | 14,898 | 23,632 | 44,035 | |
| 1976 | R | 18,048 | 20,839 | 40,205 | |
| 1972 | R | 14,529 | 23,403 | 39,261 | |
| 1968 | D | 14,762 | 14,270 | 32,612 | |
| 1964 | D | 19,580 | 11,567 | 31,210 | |
| 1960 | R | 13,499 | 15,125 | 28,778 | |
| 1956 | R | 10,623 | 13,610 | 24,333 | |
| 1952 | R | 8,316 | 13,273 | 21,747 | |
| 1948 | R | 7,207 | 8,724 | 16,516 | |
| 1944 | D | 7,748 | 7,092 | 14,936 | |
| 1940 | D | 6,771 | 5,924 | 12,853 | |
| 1936 | D | 6,270 | 3,973 | 10,390 | |
| 1932 | D | 5,745 | 3,521 | 9,524 | |
| 1928 | R | 3,422 | 4,699 | 8,175 | |
| 1924 | R | 670 | 3,605 | 6,576 | |
| 1920 | R | 1,444 | 4,448 | 6,266 | |
| 1916 | R | 3,088 | 3,914 | 7,461 | |
| 1912 | D | 2,662 | 0 | 5,719 | |
| 1908 | R | 1,336 | 2,405 | 4,071 | |
| 1904 | R | 1,135 | 2,425 | 3,831 | |
| 1900 | R | 1,432 | 2,017 | 3,557 | |
| 1896 | R | 1,472 | 2,032 | 3,563 | |
| 1892 | R | 1,478 | 1,769 | 3,483 | |
| 1888 | R | 1,496 | 1,763 | 3,314 | |
| 1884 | R | 1,256 | 1,593 | 2,877 | |
| 1880 | R | 1,082 | 1,199 | 2,310 | |
| 1876 | R | 963 | 1,153 | 2,116 |
Demographics
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
American
100.0%
Irish
0.5%
African American
1.6%
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: 42.9 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
$111,471
Napa County ranks in the top 0.5% of US counties.
Napa County$111,471
California$99,122
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
Poverty rate
All persons below federal poverty line
8.5%
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 49.9% of residents not counted as adherents by any reporting body.
Napa County's electorate leans heavily Democratic despite its reputation for wealthy landowners and tourism-driven economics, delivering a 35-point presidential margin in 2024 that outpaces many California urban counties of comparable size.
The Democratic margin in Napa County reached its widest at forty-seven points in 1912. The margin in 2024 was thirty-five points — still decisive.
Napa County's loyalty is rooted in its place. Median household income of $111,471, a 56% non-Hispanic-white share, and a population of 134,869 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 Clarke County and Montgomery County.
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