Montana 18th State House District, Montana: Populist district. In 2024, voted R+48%. Democratic peak: D+52 in 1936.
Key facts
- 2024 presidential margin
- R+48MIT Election Lab
- Political archetype
- PopulistAkashic typology
- Population
- 11,5172024 5-year
- Median household income
- $57,0082024 5-year
- White (non-Hispanic)
- 82.7%2024 5-year
- Black
- 0.8%2024 5-year
- Hispanic / Latino
- 3.3%2024 5-year
- Peak Democratic margin
- D+52 in 1936MIT Election Lab
- Peak Republican margin
- R+48 in 2024MIT Election Lab
Constituent county margins for State House District 18, MTOne cell per constituent county, colored by 2024 presidential margin from deep red (Republican) through neutral to deep blue (Democratic), ordered bluest first.
R+60D+60
One cell per constituent county. Ordered by 2024 D-vs-R margin (bluest first). Hover for county-level numbers.
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| R | 1,276 | 3,786 | 5,227 | ||
| R | 1,446 | 3,877 | 5,444 | ||
| R | 1,199 | 3,485 | 5,024 | ||
| R | 1,638 | 3,311 | 5,107 | ||
| R | 2,047 | 3,062 | 5,261 | ||
| R | 1,722 | 3,630 | 5,451 | ||
| R | 1,480 | 3,779 | 5,537 | ||
| R | 2,077 | 2,784 | 5,699 | ||
| R | 1,960 | 2,293 | 6,120 | ||
| R | 2,400 | 3,422 | 5,957 | ||
| R | 1,902 | 4,321 | 6,291 | ||
| R | 1,584 | 4,434 | 6,510 | ||
| R | 2,596 | 3,246 | 5,979 | ||
| R | 2,160 | 3,701 | 6,303 | ||
| R | 2,281 | 3,064 | 5,813 | ||
| D | 3,521 | 2,461 | 5,991 | ||
| D | 3,514 | 3,152 | 6,671 | ||
| R | 3,023 | 3,691 | 6,714 | ||
| R | 2,777 | 3,731 | 6,547 | ||
| D | 3,418 | 2,070 | 5,624 | ||
| D | 3,090 | 2,097 | 5,220 | ||
| D | 3,924 | 2,337 | 6,314 | ||
| D | 4,392 | 1,337 | 5,898 | ||
| D | 3,755 | 1,833 | 5,811 | ||
| R | 2,042 | 2,711 | 4,791 | ||
| O | 873 | 1,508 | 3,979 | ||
| R | 1,298 | 2,533 | 4,083 | ||
| D | 1,599 | 1,067 | 2,934 | ||
| O | 149 | 141 | 459 | ||
| R | 83 | 143 | 237 | ||
| R | 97 | 186 | 290 | ||
| R | 105 | 132 | 240 | ||
| D | 74 | 68 | 142 | ||
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Demographics
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
26.1%
Irish
11.4%
English
9.8%
American
5.1%
Italian
2.1%
Scottish
1.5%
French
1.2%
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: 40.1 in this county, 39.1 nationally
Male
Age
Female
85+
75–84
65–74
55–64
45–54
35–44
25–34
18–24
5–17
<5
Source · American Community Survey 5-year estimates, 2024 release.
Median household income
2024 inflation-adjusted dollars
$57,008
State House District 18 ranks near the middle of US counties.
State House District 18$57,008
Montana$72,509
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
Poverty rate
All persons below federal poverty line
16.7%
Children face moderate poverty.
Children under 1820.2%
Working age (18–64)16.5%
Seniors (65+)9.3%
Source · American Community Survey 5-year estimates, 2024 release.
Language at home
Population aged 5 and older
92.2%
speak English only
Other Indo-European5.8%
Spanish1.3%
Other languages0.5%
Asian & Pacific Islander0.2%
Source · ACS 5-year estimates, 2024.
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 42.6% of residents not counted as adherents by any reporting body.
With a 2024 presidential margin of R+49, this rural district ranks among the most one-sided in the state. Its small population of roughly 11,500 reflects the sparse settlement patterns typical of Montana's agricultural interior.
The Democratic margin in Montana 18th State House District peaked at fifty-two points in 1936. By 1968 the district had flipped, voting Republican for the first time in many years. The 2024 margin was forty-eight points, the most Republican-leaning result in the district's modern history.
The economic context is the key. The median household income of $57,008 sits well below state and national norms, and 17% of residents live below the federal poverty line. The shift here is part of a broader realignment of working-class places across the country.
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 House District 18, Montana. Akashic. https://akashic.app/sld-lower/30018/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
Frequently asked questions
How did State House District 18, Montana vote in 2024?
In 2024, State House District 18, Montana voted Republican by 48.0 points (R+48), carried by the Republican candidate. Out of 5,227 votes cast, 1,276 went Democratic and 3,786 went Republican.
What is State House District 18, Montana's political archetype?
Akashic classifies State House District 18, Montana as a "Populist" district based on its long-arc presidential voting pattern. Across 38 elections in the dataset, the district has voted Democratic 9 times, Republican 22 times, and other 2 times.
When did State House District 18, Montana last vote Democratic?
The most recent presidential election in which State House District 18, Montana voted Democratic was 1964.
How many people live in State House District 18, Montana?
State House District 18, Montana has a population of 11,517 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in State House District 18, Montana?
Median household income in State House District 18, Montana is $57,008 — below the national median of $80,734. The Montana state median is $72,509.
What is the political history of State House District 18, Montana?
Akashic tracks 38 presidential elections in State House District 18, Montana from 1876 to 2024. Of those, 9 went Democratic and 22 went Republican. The district's archetype — "Populist" — captures the overall trajectory of that voting record.