State Senate District 21 State Senate District (IN) — Elections 1876–2024

Indiana 21st State Senate District, Indiana: Republican loyalist district. In 2024, voted R+16%. Republican peak: R+52 in 1972.

Key facts

2024 presidential margin: R+16MIT Election Lab
Political archetype: Republican loyalistAkashic typology
Population: 135,9802024 5-year
Median household income: $105,4192024 5-year
White (non-Hispanic): 82.6%2024 5-year
Black: 4.7%2024 5-year
Hispanic / Latino: 5.1%2024 5-year
Peak Democratic margin: D+13 in 1912MIT Election Lab
Peak Republican margin: R+52 in 1972MIT Election Lab

2024 results by constituent county

3 counties · 0 D · 3 R

R+60

D+60

One cell per constituent county. Ordered by 2024 D-vs-R margin (bluest first). Hover for county-level numbers.

38 presidential elections

Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024).
Year	Won	Margin	Democratic	Republican	Total
2024	R	−16.0%	29,113	40,501	71,341
2020	R	−16.6%	28,878	40,655	71,020
2016	R	−26.3%	19,901	35,569	59,494
2012	R	−29.8%	18,483	34,608	54,176
2008	R	−17.6%	21,682	31,061	53,274
2004	R	−43.2%	13,078	33,180	46,578
2000	R	−39.0%	11,062	25,708	37,581
1996	R	−30.9%	9,871	20,278	33,664
1992	R	−29.4%	7,966	17,632	32,911
1988	R	−42.6%	8,354	20,848	29,304
1984	R	−47.6%	7,223	20,477	27,854
1980	R	−35.8%	8,379	18,548	28,373
1976	R	−24.0%	10,062	16,508	26,848
1972	R	−52.0%	5,679	18,088	23,877
1968	R	−24.5%	7,256	12,900	23,060
1964	D	+3.9%	11,894	10,992	23,020
1960	R	−22.1%	8,891	13,967	22,920
1956	R	−22.2%	8,383	13,196	21,703
1952	R	−19.7%	8,560	12,830	21,628
1948	R	−2.2%	9,076	9,493	18,908
1944	R	−11.2%	7,973	10,020	18,318
1940	R	−6.9%	9,342	10,743	20,248
1936	D	+6.9%	10,008	8,699	19,010
1932	D	+7.1%	9,724	8,393	18,628
1928	R	−28.3%	5,962	10,757	16,929
1924	R	−18.3%	6,333	9,357	16,525
1920	R	−16.1%	6,855	9,625	17,221
1916	R	−4.0%	4,283	4,673	9,777
1912	D	+12.9%	3,700	2,512	9,231
1908	R	−5.1%	4,405	4,914	9,898
1904	R	−19.4%	3,570	5,462	9,746
1900	R	−9.6%	4,072	4,988	9,576
1896	R	−2.1%	4,570	4,768	9,488
1892	R	−5.5%	3,377	3,838	8,388
1888	—	No data	—	—	—
1884	—	No data	—	—	—
1880	—	No data	—	—	—
1876	—	No data	—	—	—

Demographics

Race, ethnicity, and ancestry

Click any group to see the ancestries typically reported within it.

German

21.5%

English

14.9%

Irish

10.7%

American

6.9%

Italian

3.2%

Polish

2.7%

Scottish

1.8%

Source · American Community Survey 5-year estimates, 2024 release. Hispanic/Latino is an ethnicity that overlaps the race categories, so these shares can total more than 100%. Ancestry is a self-reported, multiple-response item; ancestry percentages do not sum to the parent race percentage.

Age distribution by sex

Median age: 39.5 in this county, 39.1 nationally

Male

Age

Female

0.6%

85+

1.1%

2.2%

75–84

2.6%

4.5%

65–74

5.0%

6.1%

55–64

6.4%

6.8%

45–54

6.7%

6.8%

35–44

7.2%

6.0%

25–34

6.1%

4.0%

18–24

3.9%

9.4%

5–17

9.0%

3.0%

2.9%

Source · American Community Survey 5-year estimates, 2024 release.

Median household income

2024 inflation-adjusted dollars

$105,419

State Senate District 21 ranks near the middle of US counties.

State Senate District 21$105,419

Indiana$71,957

United States$80,734

Source · American Community Survey 5-year estimates, 2024 release.

Poverty rate

All persons below federal poverty line

6.9%

Child poverty is below the national average.

Children under 188.8%

Working age (18–64)6.5%

Seniors (65+)6.0%

Source · American Community Survey 5-year estimates, 2024 release.

Language at home

Population aged 5 and older

90.3%

speak English only

Other Indo-European3.0%

Asian & Pacific Islander2.8%

Spanish2.8%

Other languages1.0%

Source · ACS 5-year estimates, 2024.

Religious adherents

Adherents per capita by tradition

Other Christian

14.8%

Catholic & Orthodox

11.9%

Mainline Protestant

4.2%

Methodist

3.0%

Pentecostal & Holiness

3.0%

Baptist

2.5%

Non-Christian

1.3%

Source · 2020 US Religion Census. Remaining 59.3% of residents not counted as adherents by any reporting body.

With a 2024 presidential margin of R+56.9, this district ranks among the most heavily Republican in the state, suggesting a rural or small-town constituency where statewide competitive races rarely materialize.

The Republican margin in Indiana 21st State Senate District reached its widest at fifty-two points in 1972. The margin in 2024 was sixteen points, in line with the district's deep historical pattern.

Its loyalty is rooted in its place. Median household income of $105,419, a 83% non-Hispanic-white share, and a population of 135,980 together describe a district whose political habits are deeply settled.

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Cite this page

All citations released under CC BY 4.0. Attribution: Akashic Intelligence.

State Senate District 21, Indiana. Akashic. https://akashic.app/sld-upper/18021/. Accessed May 20, 2026. License: CC BY 4.0.

License: CC BY 4.0

Frequently asked questions

How did State Senate District 21, Indiana vote in 2024?

In 2024, State Senate District 21, Indiana voted Republican by 16.0 points (R+16), carried by the Republican candidate. Out of 71,341 votes cast, 29,113 went Democratic and 40,501 went Republican.

What is State Senate District 21, Indiana's political archetype?

Akashic classifies State Senate District 21, Indiana as a "Republican loyalist" district based on its long-arc presidential voting pattern. Across 38 elections in the dataset, the district has voted Democratic 4 times, Republican 30 times, and other 0 times.

When did State Senate District 21, Indiana last vote Democratic?

The most recent presidential election in which State Senate District 21, Indiana voted Democratic was 1964.

How many people live in State Senate District 21, Indiana?

State Senate District 21, Indiana has a population of 135,980 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.

What is the median household income in State Senate District 21, Indiana?

Median household income in State Senate District 21, Indiana is $105,419 — above the national median of $80,734. The Indiana state median is $71,957.

What is the political history of State Senate District 21, Indiana?

Akashic tracks 38 presidential elections in State Senate District 21, Indiana from 1876 to 2024. Of those, 4 went Democratic and 30 went Republican. The district's archetype — "Republican loyalist" — captures the overall trajectory of that voting record.

Indiana 21st State Senate District has voted Republican in fifteen straight presidential cycles.

Key facts

Demographics

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Frequently asked questions