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 | R | 20,145 | 37,761 | 58,591 | |
| 2020 | R | 21,067 | 36,143 | 57,954 | |
| 2016 | R | 18,733 | 31,544 | 52,839 | |
| 2012 | R | 24,232 | 25,925 | 51,039 | |
| 2008 | R | 26,411 | 26,565 | 53,821 | |
| 2004 | R | 24,831 | 26,311 | 51,564 | |
| 2000 | D | 23,817 | 23,132 | 48,732 | |
| 1996 | D | 23,003 | 17,213 | 45,779 | |
| 1992 | D | 23,264 | 16,081 | 49,836 | |
| 1988 | D | 24,278 | 21,301 | 45,880 | |
| 1984 | D | 24,658 | 24,211 | 49,303 | |
| 1980 | R | 19,716 | 22,372 | 46,090 | |
| 1976 | D | 25,041 | 22,469 | 48,235 | |
| 1972 | R | 18,087 | 27,961 | 47,100 | |
| 1968 | R | 22,814 | 23,131 | 49,105 | |
| 1964 | D | 32,199 | 18,153 | 50,563 | |
| 1960 | R | 24,243 | 29,109 | 53,480 | |
| 1956 | R | 19,769 | 28,785 | 48,674 | |
| 1952 | R | 20,770 | 26,424 | 47,537 | |
| 1948 | R | 16,108 | 18,916 | 35,886 | |
| 1944 | R | 16,589 | 19,606 | 36,407 | |
| 1940 | R | 16,968 | 21,058 | 38,215 | |
| 1936 | D | 20,879 | 18,493 | 40,311 | |
| 1932 | R | 10,961 | 14,057 | 26,258 | |
| 1928 | R | 8,204 | 22,599 | 31,083 | |
| 1924 | R | 3,688 | 14,639 | 22,420 | |
| 1920 | R | 4,823 | 11,575 | 19,199 | |
| 1916 | D | 6,390 | 5,866 | 13,751 | |
| 1912 | D | 4,039 | 1,873 | 12,718 | |
| 1908 | R | 5,473 | 6,497 | 13,744 | |
| 1904 | R | 3,845 | 8,574 | 14,133 | |
| 1900 | R | 4,916 | 6,950 | 12,425 | |
| 1896 | R | 5,500 | 7,262 | 13,077 | |
| 1892 | R | 4,931 | 5,874 | 11,562 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Demographics
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
American
100.0%
Italian
0.8%
African American
4.6%
Multiple ancestry combinations reported; no single grouping above 1%.
Sample size too small to break out by ancestry reliably.
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: 45.1 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
$59,976
Mercer County ranks near the middle of US counties.
Mercer County$59,976
Pennsylvania$77,971
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
Poverty rate
All persons below federal poverty line
13.2%
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 60.3% of residents not counted as adherents by any reporting body.
Mercer County's working-class, post-industrial economy tracked closely with statewide results through the 1990s, but the county has shifted decisively rightward over the past two decades, posting a 30-point Republican margin in 2024.
The Republican margin in Mercer County reached its widest at forty-nine points in 1924. The margin in 2024 was thirty points, in line with the county's deep historical pattern.
Mercer County's loyalty is rooted in its place. Median household income of $59,976, a 88% non-Hispanic-white share, and a population of 109,257 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 Pope County and Iron County.
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