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 | 203,070 | 144,553 | 355,722 | |
| 2020 | D | 228,358 | 150,646 | 386,137 | |
| 2016 | D | 190,836 | 143,768 | 353,100 | |
| 2012 | D | 186,181 | 148,423 | 340,412 | |
| 2008 | D | 196,435 | 153,957 | 353,892 | |
| 2004 | D | 170,158 | 164,566 | 337,569 | |
| 2000 | D | 149,901 | 145,052 | 302,362 | |
| 1996 | D | 144,207 | 114,860 | 279,913 | |
| 1992 | D | 152,728 | 116,566 | 309,793 | |
| 1988 | R | 127,936 | 139,711 | 268,629 | |
| 1984 | R | 122,133 | 167,640 | 290,750 | |
| 1980 | R | 125,844 | 127,254 | 265,286 | |
| 1976 | R | 122,731 | 130,262 | 259,445 | |
| 1972 | R | 88,143 | 142,436 | 235,764 | |
| 1968 | R | 90,242 | 95,942 | 222,657 | |
| 1964 | D | 146,023 | 80,951 | 227,823 | |
| 1960 | R | 117,180 | 118,575 | 235,755 | |
| 1956 | R | 83,483 | 119,262 | 203,917 | |
| 1952 | R | 81,642 | 99,069 | 181,447 | |
| 1948 | D | 70,756 | 69,645 | 143,629 | |
| 1944 | D | 80,236 | 60,905 | 141,621 | |
| 1940 | D | 94,710 | 66,052 | 161,218 | |
| 1936 | D | 85,748 | 53,043 | 142,374 | |
| 1932 | D | 72,402 | 67,137 | 141,096 | |
| 1928 | R | 64,472 | 97,803 | 162,613 | |
| 1924 | R | 50,409 | 61,768 | 117,586 | |
| 1920 | R | 56,046 | 68,202 | 125,549 | |
| 1916 | D | 28,840 | 28,386 | 58,314 | |
| 1912 | D | 24,100 | 3,519 | 52,305 | |
| 1908 | R | 26,186 | 27,180 | 54,700 | |
| 1904 | D | 22,781 | 21,664 | 45,959 | |
| 1900 | R | 21,107 | 24,906 | 46,536 | |
| 1896 | R | 16,707 | 29,107 | 47,272 | |
| 1892 | D | 20,919 | 13,454 | 35,282 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Demographics
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
American
100.0%
Polish
1.8%
African American
16.6%
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: 38.4 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
$69,866
Jefferson County ranks near the middle of US counties.
Jefferson County$69,866
Kentucky$63,726
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
Poverty rate
All persons below federal poverty line
14.3%
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 48.9% of residents not counted as adherents by any reporting body.
Jefferson County anchors Kentucky's urban core and consistently bucks the state's statewide Republican lean, delivering margins above D+15 in recent presidential cycles while housing roughly 15% of the state's total population.
The Democratic margin in Jefferson County reached its widest at thirty-nine points in 1912. The margin in 2024 was sixteen points — still decisive.
Jefferson County's loyalty is rooted in its place. Median household income of $69,866, a 63% non-Hispanic-white share, and a population of 783,022 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 Bibb County and Kitsap County.
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