akashic
1876–2024
State Senate District 18·Wisconsin

Wisconsin 18th State Senate District votes the way the country votes.

One of Wisconsin's most Democratic-leaning legislative districts

1876 — 2024·38 elections
WI
Latest
R+6
in 2024
Archetype
Bellwether
since the recent cycles
Population
27,025
2024 ACS

Wisconsin 18th State Senate District, Wisconsin: Bellwether district. In 2024, voted R+6%. Republican peak: R+51 in 1920.

Key facts

2024 presidential margin
R+6MIT Election Lab
Political archetype
BellwetherAkashic typology
Population
27,0252024 5-year
Median household income
$77,5462024 5-year
White (non-Hispanic)
86.3%2024 5-year
Black
2.5%2024 5-year
Hispanic / Latino
5.2%2024 5-year
Peak Democratic margin
D+23 in 1912MIT Election Lab
Peak Republican margin
R+51 in 1920MIT Election Lab
2024 results by constituent county
2 counties · 0 D · 2 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).
YearWonMarginDemocraticRepublicanTotal
R
−6.2%
7,0017,94115,181
R
−5.5%
6,8677,69114,883
R
−8.7%
5,7016,87513,569
D
+2.4%
6,9566,63013,830
D
+11.6%
7,4415,86413,546
R
−7.1%
6,2327,20113,598
R
−6.5%
5,1515,90111,620
D
+2.4%
4,4934,2589,963
R
−8.5%
4,0375,03311,670
R
−9.9%
4,3325,2939,687
R
−26.9%
3,3765,8849,319
R
−16.0%
3,5955,1419,661
R
−12.5%
3,6934,7788,679
R
−18.5%
3,0184,4387,673
R
−16.8%
2,6863,8677,028
D
+6.1%
3,5383,1336,687
R
−22.1%
2,6864,2116,910
R
−45.9%
1,5774,3005,931
R
−39.1%
1,8584,2516,127
R
−14.1%
1,9372,5884,632
R
−22.0%
1,8592,9164,811
R
−11.1%
2,2572,8245,118
D
+22.2%
2,7461,7064,681
D
+18.1%
2,4051,6514,159
R
−18.0%
1,6182,3373,996
O
−38.4%
2561,5443,350
R
−50.7%
5091,8082,560
R
−6.4%
7738831,731
D
+23.4%
6903111,618
R
−9.6%
7989771,870
R
−30.1%
5811,1161,777
R
−13.7%
7991,0611,910
R
−19.7%
7421,1181,911
D
+7.7%
8527241,662
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Demographics

Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
42.5%
Irish
10.1%
Polish
6.7%
English
6.3%
American
4.0%
French
3.0%
Italian
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: 38.8 in this county, 39.1 nationally
Male
Age
Female
0.7%
85+
1.4%
2.2%
75–84
2.7%
4.9%
65–74
5.3%
6.7%
55–64
6.7%
6.1%
45–54
5.7%
6.8%
35–44
6.2%
7.1%
25–34
6.2%
5.3%
18–24
5.3%
8.0%
5–17
7.7%
2.8%
<5
2.5%
Source · American Community Survey 5-year estimates, 2024 release.
Median household income
2024 inflation-adjusted dollars
$77,546
State Senate District 18 ranks near the middle of US counties.
State Senate District 18$77,546
Wisconsin$77,485
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
Poverty rate
All persons below federal poverty line
10.0%
Child poverty is below the national average.
Children under 1812.6%
Working age (18–64)9.4%
Seniors (65+)8.6%
Source · American Community Survey 5-year estimates, 2024 release.
Language at home
Population aged 5 and older
93.7%
speak English only
Spanish2.6%
Asian & Pacific Islander2.2%
Other Indo-European1.2%
Other languages0.3%
Source · ACS 5-year estimates, 2024.
Religious adherents
Adherents per capita by tradition
Catholic & Orthodox
22.4%
Mainline Protestant
16.5%
Other Christian
7.1%
Non-Christian
1.4%
Pentecostal & Holiness
1.2%
Methodist
1.0%
Baptist
0.2%
Source · 2020 US Religion Census. Remaining 50.1% of residents not counted as adherents by any reporting body.

Centered in Milwaukee, this district delivered a 66-point Democratic margin in 2024, making it an outlier in a state where statewide races routinely land within a few percentage points.

The Democratic margin in Wisconsin 18th State Senate District has rarely exceeded twenty-three points in modern history; the Republican margin has rarely exceeded fifty-one points. 2024 delivered the district to the Republican candidate by six points.

Its demographics resemble the country more than they resemble most districts. A 86% non-Hispanic-white share, a 10% poverty rate, and a median household income of $77,546 — all within the broad national range.

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 18, Wisconsin. Akashic. https://akashic.app/sld-upper/55018/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0

Frequently asked questions

How did State Senate District 18, Wisconsin vote in 2024?
In 2024, State Senate District 18, Wisconsin voted Republican by 6.2 points (R+6), carried by the Republican candidate. Out of 15,181 votes cast, 7,001 went Democratic and 7,941 went Republican.
What is State Senate District 18, Wisconsin's political archetype?
Akashic classifies State Senate District 18, Wisconsin as a "Bellwether" district based on its long-arc presidential voting pattern. Across 38 elections in the dataset, the district has voted Democratic 8 times, Republican 25 times, and other 1 times.
When did State Senate District 18, Wisconsin last vote Democratic?
The most recent presidential election in which State Senate District 18, Wisconsin voted Democratic was 2012.
How many people live in State Senate District 18, Wisconsin?
State Senate District 18, Wisconsin has a population of 27,025 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, Wisconsin?
Median household income in State Senate District 18, Wisconsin is $77,546 — below the national median of $80,734. The Wisconsin state median is $77,485.
What is the political history of State Senate District 18, Wisconsin?
Akashic tracks 38 presidential elections in State Senate District 18, Wisconsin from 1876 to 2024. Of those, 8 went Democratic and 25 went Republican. The district's archetype — "Bellwether" — captures the overall trajectory of that voting record.