Tennessee 21st State Senate District · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1892–2024 (partial returns from 1876) · 38 presidential cycles · 38 with a vote-share denominator · 34 with a national benchmark
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
Franklin D. Roosevelt1936
86.1%
6,737 votes · D+72.9 · modeled estimate
Runner-up · Alton B. Parker, 1904 · 78.7%
Republican
Richard Nixon1972
59.3%
20,399 votes · R+21.7 · modeled estimate
Runner-up · Herbert Hoover, 1928 · 51.5%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
55,844votes
65.5% of the vote · D+33.9 · modeled estimate
Runner-up · Kamala Harris, 2024 · 49,202 votes
Republican
Donald Trump2024
29,681votes
36.8% of the vote · D+24.2 · modeled estimate
Runner-up · Donald Trump, 2020 · 26,920 votes
Best relative to the U.S.
This Place’s margin against the national margin in the same election — positive when it leaned toward the party more than the country did.
Democratic
Alton B. Parker1904
+81.7pts D vs U.S.
Place D+62.0 · U.S. R+19.7 · modeled estimate
Runner-up · John W. Davis, 1924 · +68.2 pts
Republican
Richard Nixon1972
−1.5pts R vs U.S.
Place R+21.7 · U.S. R+23.2 · modeled estimate
Runner-up · Richard Nixon, 1968 · −3.2 pts
current representation
Current officeholders
DJeff YarbroState Senate · 21
State legislative officeholder from OpenStates nightly current-legislator data.
U.S. House elections · 3 House
Senate and governor results are in the Office selector at the top of this page.
U.S. House
Each row is a county-allocated estimate of U.S. House votes for this district — county returns apportioned onto its boundary, not precinct-counted. “Vote lead” is the estimated local lead here, not necessarily the winner of the full contest.
Source · Akashic county-allocated estimate from certified county returns, House; not precinct-counted.
Year
Vote lead
Democratic
Republican
Total
2024
D
64.4%52,754
35.6%29,188
81,942
2020
D
100.0%69,601
0.0%0
69,601
2018
D
71.3%50,696
28.7%20,449
71,145
Tennessee 21st State Senate District sits in the Border South and Appalachia. In 2024 it voted Democratic.
Across the recorded series it reached a Democratic high of 72.9 points in 1936 and a Republican high of 21.7 points in 1972. Between 2020 and 2024 the district moved 9.7 points toward the Republican candidate; the 2024 margin was 24.2 points.
A population of 216,084, a 59% non-Hispanic-white share, and a median household income of $80,239 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 13 and State Senate District 39.
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 → · Or open the source-auditable district brief for electoral baseline, electorate, current-cycle coverage, geography, official dates, and methodology. Open campaign intelligence report →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Tennessee 21st State Senate District. Akashic. https://akashic.app/sld-upper/47021/. Accessed May 20, 2026. License: CC BY 4.0.
How did Tennessee 21st State Senate District vote in 2024?
In 2024, Tennessee 21st State Senate District voted Democratic by 24.2 points (D+24.2), carried by the Democratic candidate. Out of 80,573 votes cast, 49,202 went Democratic and 29,681 went Republican.
When did Tennessee 21st State Senate District last vote Republican?
The most recent presidential election in which Tennessee 21st State Senate District voted Republican was 1988.
How many people live in Tennessee 21st State Senate District?
Tennessee 21st State Senate District has a population of 216,084 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Tennessee 21st State Senate District?
Median household income in Tennessee 21st State Senate District is $80,239 — below the national median of $80,734. The Tennessee state median is $69,595.
What is the political history of Tennessee 21st State Senate District?
Akashic tracks 38 presidential elections in Tennessee 21st State Senate District from 1876 to 2024. Of those, 33 went Democratic and 4 went Republican.