state senate districtPennsylvania 21st State Senate District
presidential margin
2004–2024 · Democratic minus Republican
2004R+23.6
2008R+19.3
2012R+28.7
2016R+41.8
2020R+41.8
2024R+42.9
net swing · 2004→2024R+19.3R+23.6 → R+42.9
vs. U.S. · 2024R+41.5R+42.9 vs R+1.5
presidential returns
2024 turnout 67.2% of 209,370 citizens 18+
Year
Democrat
Republican
Others
Total
CVAP
Turnout
2024
39,591
100,023
1,131
140,745
209,370
67.2%
2020
39,257
96,991
1,918
138,166
206,744†
66.8%
2016
33,201
84,761
5,322
123,284
207,191†
59.5%
2012
40,117
73,244
2,114
115,475
205,363†
56.2%
2008
48,188
71,752
2,411
122,351
201,856†
60.6%
2004
45,183
73,388
803
119,374
198,349†
60.2%
† Citizen voting-age population estimated for prior cycles from the constituent-county ACS trend anchored to the current figure. 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
GroupPA SD 21PennsylvaniaUnited States
German31.1%21.6%12.5%
Irish17.1%14.8%9.4%
English10.9%8.3%9.5%
Italian9.6%10.6%4.8%
Polish6.3%5.4%2.2%
American4.8%4.4%5.3%
Scottish2.0%1.1%1.3%
Slovak1.3%0.8%—
African American†1.2%8.7%9.9%
Puerto Rican0.4%3.7%1.8%
Mexican0.4%1.4%11.3%
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
PA SD 21
Pennsylvania
United States
Median age
45.2
41.2
39.1
Age 18–24
8.7%
8.9%
9.2%
Age 65 and older
21.8%
19.5%
17.2%
Household economy
Measure
PA SD 21
Pennsylvania
United States
Median household income
$65,242
$77,971
$84,427
Poverty rate
11.8%
11.7%
12.5%
Bachelor's degree or higher (25+)
30.8%
35.2%
35.6%
Languages at home
Measure
PA SD 21
Pennsylvania
United States
Speaks a non-English language at home
3.6%
12.4%
22.3%
Spanish
1.1%
5.6%
13.6%
Religious landscape
Measure
PA SD 21
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.
Pennsylvania 21st State Senate District
presidential history
Presidential margin, 2004–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
2004
−23.6%
2008
−19.3%
2012
−28.7%
2016
−41.8%
2020
−41.8%
2024
−42.9%
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
28.1%Harris39,591
71.1%Trump100,023
0.8%
R+42.9
R+1.2
R+41.5
140,745
R
28.4%Biden39,257
70.2%Trump96,991
1.4%
R+41.8
±0.0
R+46.2
138,166
R
26.9%Clinton33,201
68.8%Trump84,761
4.3%
R+41.8
R+13.1
R+43.9
123,284
R
34.7%Obama40,117
63.4%Romney73,244
1.8%
R+28.7
R+9.4
R+32.5
115,475
R
39.4%Obama48,188
58.6%McCain71,752
2.0%
R+19.3
D+4.4
R+26.5
122,351
R
37.8%Kerry45,183
61.5%Bush73,388
0.7%
R+23.6
—
R+21.2
119,374
current representation
Current officeholders
RScott HutchinsonState Senate · 21
State legislative officeholder from OpenStates nightly current-legislator data.
Stretching across rural south-central Pennsylvania, this district delivered a nearly 40-point Republican presidential margin in 2024, reflecting the demographic and economic profile common to small-town and agricultural communities in the region.
Across the recorded series it reached a Republican high of 42.9 points in 2024. Between 2020 and 2024 the district moved 1.2 points toward the Republican candidate; the 2024 margin was 42.9 points.
A population of 258,828, a 93% non-Hispanic-white share, and a median household income of $65,242 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 41 and State Senate District 1.
Akashic
Political twins — state-senate districts
The state-senate districts whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Pennsylvania 21st State Senate District. Akashic. https://akashic.app/sld-upper/42021/. Accessed May 20, 2026. License: CC BY 4.0.
How did Pennsylvania 21st State Senate District vote in 2024?
In 2024, Pennsylvania 21st State Senate District voted Republican by 42.9 points (R+42.9), carried by the Republican candidate. Out of 140,745 votes cast, 39,591 went Democratic and 100,023 went Republican.
How many people live in Pennsylvania 21st State Senate District?
Pennsylvania 21st State Senate District has a population of 258,828 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Pennsylvania 21st State Senate District?
Median household income in Pennsylvania 21st State Senate District is $65,242 — below the national median of $80,734. The Pennsylvania state median is $77,971.
What is the political history of Pennsylvania 21st State Senate District?
Akashic tracks 6 presidential elections in Pennsylvania 21st State Senate District from 2004 to 2024. Of those, 0 went Democratic and 6 went Republican.
