State Senate District 18 State Senate District (IN) — Elections 1876–2024

Indiana 18th State Senate District, Indiana: Republican loyalist district. In 2024, voted R+46%. Republican peak: R+46 in 1972.

Key facts

2024 presidential margin: R+46MIT Election Lab
Political archetype: Republican loyalistAkashic typology
Population: 192,0662024 5-year
Median household income: $64,1002024 5-year
White (non-Hispanic): 84.8%2024 5-year
Black: 3.3%2024 5-year
Hispanic / Latino: 8.2%2024 5-year
Peak Democratic margin: D+20 in 1912MIT Election Lab
Peak Republican margin: R+46 in 1972MIT Election Lab

2024 results by constituent county

5 counties · 0 D · 5 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	−45.8%	21,312	58,661	81,582
2020	R	−43.1%	23,215	59,787	84,902
2016	R	−44.3%	19,404	54,087	78,364
2012	R	−28.2%	26,115	47,339	75,341
2008	R	−15.9%	33,263	46,110	80,619
2004	R	−39.2%	22,789	52,634	76,108
2000	R	−30.6%	24,342	46,555	72,636
1996	R	−19.4%	24,022	37,853	71,456
1992	R	−19.4%	21,049	35,531	74,822
1988	R	−33.0%	23,813	47,474	71,635
1984	R	−40.6%	21,945	52,264	74,667
1980	R	−29.5%	25,329	48,190	77,543
1976	R	−17.2%	31,270	44,506	77,153
1972	R	−46.4%	19,066	52,435	71,967
1968	R	−19.7%	25,022	39,226	72,180
1964	D	+10.0%	39,891	32,603	72,979
1960	R	−21.1%	29,527	45,478	75,453
1956	R	−26.5%	27,123	46,789	74,325
1952	R	−21.5%	28,327	44,102	73,353
1948	R	−3.0%	31,353	33,324	65,943
1944	R	−11.6%	28,390	35,959	65,218
1940	R	−5.6%	33,037	36,967	70,484
1936	D	+6.6%	34,921	30,520	66,618
1932	D	+12.3%	35,714	27,702	64,930
1928	R	−25.5%	21,374	36,202	58,181
1924	R	−21.6%	19,467	31,703	56,664
1920	R	−14.0%	24,472	32,858	60,033
1916	R	−0.7%	15,677	15,920	33,911
1912	D	+20.5%	13,178	6,802	31,178
1908	R	−1.0%	15,868	16,205	33,786
1904	R	−13.7%	13,061	17,554	32,873
1900	R	−3.7%	14,473	15,636	31,185
1896	R	−1.5%	14,764	15,218	30,447
1892	R	−0.3%	12,840	12,923	27,876
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

19.5%

English

11.6%

Irish

9.5%

American

8.6%

Italian

1.9%

Polish

1.3%

French

0.9%

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: 40.9 in this county, 39.1 nationally

Male

Age

Female

0.7%

85+

1.4%

2.6%

75–84

3.1%

5.3%

65–74

5.7%

6.7%

55–64

6.7%

6.5%

45–54

6.0%

6.2%

35–44

5.7%

6.5%

25–34

5.9%

4.3%

18–24

3.9%

8.8%

5–17

8.2%

2.9%

2.8%

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

Median household income

2024 inflation-adjusted dollars

$64,100

State Senate District 18 ranks near the middle of US counties.

State Senate District 18$64,100

Indiana$71,957

United States$80,734

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

Poverty rate

All persons below federal poverty line

13.1%

Children face moderate poverty.

Children under 1818.6%

Working age (18–64)12.0%

Seniors (65+)7.1%

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

Language at home

Population aged 5 and older

92.2%

speak English only

Spanish4.8%

Other Indo-European2.0%

Asian & Pacific Islander0.8%

Other languages0.2%

Source · ACS 5-year estimates, 2024.

Religious adherents

Adherents per capita by tradition

Other Christian

15.1%

Catholic & Orthodox

5.3%

Methodist

4.8%

Baptist

4.0%

Pentecostal & Holiness

3.8%

Mainline Protestant

2.9%

Non-Christian

0.1%

Source · 2020 US Religion Census. Remaining 64.0% of residents not counted as adherents by any reporting body.

With a 2024 presidential margin of R+53.9, this district ranks among the most heavily one-sided in the state, reflecting a rural and small-city electorate that has moved decisively away from statewide competitiveness.

The Republican margin in Indiana 18th State Senate District reached its widest at forty-six points in 1972. The margin in 2024 was forty-six points, in line with the district's deep historical pattern.

Its loyalty is rooted in its place. Median household income of $64,100, a 85% non-Hispanic-white share, and a population of 192,066 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 18, Indiana. Akashic. https://akashic.app/sld-upper/18018/. Accessed May 20, 2026. License: CC BY 4.0.

License: CC BY 4.0

Frequently asked questions

How did State Senate District 18, Indiana vote in 2024?

In 2024, State Senate District 18, Indiana voted Republican by 45.8 points (R+46), carried by the Republican candidate. Out of 81,582 votes cast, 21,312 went Democratic and 58,661 went Republican.

What is State Senate District 18, Indiana's political archetype?

Akashic classifies State Senate District 18, 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 18, Indiana last vote Democratic?

The most recent presidential election in which State Senate District 18, Indiana voted Democratic was 1964.

How many people live in State Senate District 18, Indiana?

State Senate District 18, Indiana has a population of 192,066 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 18, Indiana?

Median household income in State Senate District 18, Indiana is $64,100 — below the national median of $80,734. The Indiana state median is $71,957.

What is the political history of State Senate District 18, Indiana?

Akashic tracks 38 presidential elections in State Senate District 18, 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 18th State Senate District has voted Republican in fifteen straight presidential cycles.

Key facts

Demographics

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Frequently asked questions