† 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
GroupSlippery RockPennsylvaniaUnited States
German32.1%21.6%12.5%
Irish18.5%14.8%9.4%
Italian11.8%10.6%4.8%
English10.5%8.3%9.5%
Polish7.5%5.4%2.2%
American3.8%4.4%5.3%
Slovak2.4%0.8%—
Scottish2.3%1.1%1.3%
Mexican2.2%1.4%11.3%
Puerto Rican1.1%3.7%1.8%
African American†2.8%8.7%9.9%
Asian Indian0.4%1.2%1.4%
Chinese0.2%0.9%1.3%
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
Slippery Rock
Pennsylvania
United States
Median age
23.3
41.2
39.1
Age 18–24
46.3%
8.9%
9.2%
Age 65 and older
7.8%
19.5%
17.2%
Household economy
Measure
Slippery Rock
Pennsylvania
United States
Median household income
$52,262
$77,971
$84,427
Poverty rate
33.8%
11.7%
12.5%
Bachelor's degree or higher (25+)
34.7%
35.2%
35.6%
Languages at home
Measure
Slippery Rock
Pennsylvania
United States
Speaks a non-English language at home
8.3%
12.4%
22.3%
Spanish
7.2%
5.6%
13.6%
Religious landscape
Measure
Slippery Rock
Pennsylvania
United States
Catholic
—
21.9%
18.6%
Evangelical Protestant
—
9.3%
16.5%
Unclaimed / not counted
—
53.1%
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.
Slippery Rock, Pennsylvania
presidential history
Presidential margin, 2004–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
2004
+17.0%
2008
+18.6%
2012
+10.4%
2016
−0.7%
2020
+8.5%
2024
−25.8%
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
R
36.7%Harris260
62.6%Trump443
0.7%
R+25.8
R+34.4
R+24.4
708
D
53.5%Biden639
45.0%Trump537
1.5%
D+8.5
D+9.2
D+4.1
1,194
R
45.9%Clinton548
46.6%Trump556
7.5%
R+0.7
R+11.1
R+2.8
1,193
D
54.4%Obama612
44.0%Romney495
1.5%
D+10.4
R+8.2
D+6.6
1,124
D
58.3%Obama762
39.7%McCain519
2.0%
D+18.6
D+1.5
D+11.3
1,307
D
58.3%Kerry711
41.2%Bush503
0.5%
D+17.0
—
D+19.5
1,220
Slippery Rock University anchors this small Butler County borough, keeping its population young and transient. That demographic churn makes voter-registration patterns here harder to read than in comparably sized Pennsylvania towns.
Across the recorded series it reached a Democratic high of 18.6 points in 2008 and a Republican high of 25.8 points in 2024. Between 2020 and 2024 the city moved 34.4 points toward the Republican candidate; the 2024 margin was 25.8 points.
A population of 3,495, a 85% non-Hispanic-white share, and a median household income of $52,262 describe the city.
In 2024, Slippery Rock, Pennsylvania voted Republican by 25.8 points (R+25.8), carried by the Republican candidate. Out of 708 votes cast, 260 went Democratic and 443 went Republican.
When did Slippery Rock, Pennsylvania last vote Democratic?
The most recent presidential election in which Slippery Rock, Pennsylvania voted Democratic was 2020.
How many people live in Slippery Rock, Pennsylvania?
Slippery Rock, Pennsylvania has a population of 3,495 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Slippery Rock, Pennsylvania?
Median household income in Slippery Rock, Pennsylvania is $52,262 — below the national median of $80,734. The Pennsylvania state median is $77,971.
What is the political history of Slippery Rock, Pennsylvania?
Akashic tracks 6 presidential elections in Slippery Rock, Pennsylvania from 2004 to 2024. Of those, 4 went Democratic and 2 went Republican.
