State Senate District 20 State Senate District (WI) — Elections 1876–2024

Wisconsin 20th State Senate District, Wisconsin: Republican loyalist district. In 2024, voted R+27%. Republican peak: R+57 in 1920.

Key facts

2024 presidential margin: R+27MIT Election Lab
Political archetype: Republican loyalistAkashic typology
Population: 202,4572024 5-year
Median household income: $89,1462024 5-year
White (non-Hispanic): 89.2%2024 5-year
Black: 1.6%2024 5-year
Hispanic / Latino: 4.9%2024 5-year
Peak Democratic margin: D+45 in 1932MIT Election Lab
Peak Republican margin: R+57 in 1920MIT 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	−26.6%	46,248	80,531	128,697
2020	R	−27.5%	44,250	78,480	124,658
2016	R	−29.9%	35,244	68,183	110,299
2012	R	−29.6%	39,351	72,914	113,484
2008	R	−20.3%	42,680	64,775	108,862
2004	R	−32.1%	36,121	70,786	107,827
2000	R	−29.4%	31,417	59,021	93,756
1996	R	−13.1%	28,599	38,466	75,608
1992	R	−17.0%	24,393	38,520	82,926
1988	R	−18.5%	27,914	40,688	69,102
1984	R	−29.6%	23,803	44,001	68,334
1980	R	−22.5%	24,256	39,991	69,979
1976	R	−13.6%	26,720	35,372	63,608
1972	R	−19.3%	20,321	30,520	52,948
1968	R	−14.8%	18,096	24,972	46,316
1964	D	+16.5%	25,052	17,965	43,080
1960	R	−15.5%	18,223	24,908	43,203
1956	R	−39.3%	11,221	25,910	37,379
1952	R	−39.5%	11,334	26,202	37,661
1948	R	−11.2%	11,837	14,917	27,383
1944	R	−24.3%	11,206	18,478	29,970
1940	R	−18.0%	12,356	17,879	30,665
1936	D	+29.8%	17,068	8,702	28,056
1932	D	+45.4%	18,758	6,842	26,262
1928	D	+5.1%	12,751	11,495	24,597
1924	O	−22.2%	2,093	6,544	20,083
1920	R	−57.4%	2,987	13,156	17,729
1916	R	−6.5%	5,374	6,152	11,988
1912	D	+19.0%	5,294	3,314	10,405
1908	R	−1.5%	5,665	5,845	12,031
1904	R	−14.5%	4,718	6,410	11,669
1900	R	−4.1%	5,560	6,053	12,007
1896	R	−11.0%	5,188	6,514	12,103
1892	D	+21.8%	5,996	3,805	10,037
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

47.7%

Irish

10.8%

Polish

7.9%

English

6.6%

American

4.1%

Italian

3.8%

French

2.5%

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: 43.2 in this county, 39.1 nationally

Male

Age

Female

0.9%

85+

1.5%

2.7%

75–84

3.2%

5.8%

65–74

6.2%

7.6%

55–64

7.5%

6.3%

45–54

6.1%

6.5%

35–44

6.2%

5.5%

25–34

5.2%

4.0%

18–24

3.8%

8.2%

5–17

7.9%

2.5%

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

Median household income

2024 inflation-adjusted dollars

$89,146

State Senate District 20 ranks near the middle of US counties.

State Senate District 20$89,146

Wisconsin$77,485

United States$80,734

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

Poverty rate

All persons below federal poverty line

6.6%

Child poverty is below the national average.

Children under 187.5%

Working age (18–64)6.0%

Seniors (65+)9.7%

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

Language at home

Population aged 5 and older

94.4%

speak English only

Spanish2.3%

Other Indo-European1.8%

Asian & Pacific Islander1.4%

Other languages0.1%

Source · ACS 5-year estimates, 2024.

Religious adherents

Adherents per capita by tradition

Catholic & Orthodox

27.3%

Mainline Protestant

17.8%

Other Christian

7.2%

Pentecostal & Holiness

2.3%

Methodist

1.4%

Non-Christian

0.1%

Source · 2020 US Religion Census. Remaining 43.9% of residents not counted as adherents by any reporting body.

Anchored in Madison's urban core, this district delivered a 25-point Democratic presidential margin in 2024, reflecting a highly educated, densely populated electorate that consistently outpaces the state's competitive statewide results.

The Republican margin in Wisconsin 20th State Senate District reached its widest at fifty-seven points in 1920. The margin in 2024 was twenty-seven points, in line with the district's deep historical pattern.

Its loyalty is rooted in its place. Median household income of $89,146, a 89% non-Hispanic-white share, and a population of 202,457 together describe a district whose political habits are deeply settled.

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.

State Senate District 20, Wisconsin. Akashic. https://akashic.app/sld-upper/55020/. Accessed May 20, 2026. License: CC BY 4.0.

License: CC BY 4.0

Frequently asked questions

How did State Senate District 20, Wisconsin vote in 2024?

In 2024, State Senate District 20, Wisconsin voted Republican by 26.6 points (R+27), carried by the Republican candidate. Out of 128,697 votes cast, 46,248 went Democratic and 80,531 went Republican.

What is State Senate District 20, Wisconsin's political archetype?

Akashic classifies State Senate District 20, Wisconsin as a "Republican loyalist" district based on its long-arc presidential voting pattern. Across 38 elections in the dataset, the district has voted Democratic 6 times, Republican 27 times, and other 1 times.

When did State Senate District 20, Wisconsin last vote Democratic?

The most recent presidential election in which State Senate District 20, Wisconsin voted Democratic was 1964.

How many people live in State Senate District 20, Wisconsin?

State Senate District 20, Wisconsin has a population of 202,457 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 20, Wisconsin?

Median household income in State Senate District 20, Wisconsin is $89,146 — above the national median of $80,734. The Wisconsin state median is $77,485.

What is the political history of State Senate District 20, Wisconsin?

Akashic tracks 38 presidential elections in State Senate District 20, Wisconsin from 1876 to 2024. Of those, 6 went Democratic and 27 went Republican. The district's archetype — "Republican loyalist" — captures the overall trajectory of that voting record.

Wisconsin 20th State Senate District has voted Republican in fifteen straight presidential cycles.

Key facts

Demographics

Compare two places, side by side

Frequently asked questions