state senate districtMontana 42nd State Senate District
presidential margin
2004–2024 · Democratic minus Republican
2004R+18.7
2008D+0.7
2012R+10.5
2016R+14.7
2020R+13.2
2024R+13.1
net swing · 2004→2024D+5.7R+18.7 → R+13.1
vs. U.S. · 2024R+11.6R+13.1 vs R+1.5
presidential returns
2024 turnout 79.5% of 17,298 citizens 18+
Year
Democrat
Republican
Others
Total
CVAP
Turnout
2024
5,769
7,565
426
13,760
17,298
79.5%
2020
5,488
7,204
351
13,043
16,131†
80.9%
2016
3,925
5,422
845
10,192
15,426†
66.1%
2012
4,211
5,225
257
9,693
14,642†
66.2%
2008
4,541
4,478
265
9,284
13,801†
67.3%
2004
3,352
4,920
99
8,371
12,961†
64.6%
† Citizen voting-age population estimated for prior cycles from the constituent-county ACS trend anchored to the current figure. Source: ACS 5-year, table B05003.
——
D+60R+60
20042024
Boundary by 2024 margin · Precinct returns · VEST · MIT Election Lab
People and households
Who lives here
Exact values for this place, its state, and the United States.
Race · ethnicity · ancestry
Communities and origins
GroupMT SD 42MontanaUnited States
German23.6%22.9%12.5%
Irish16.0%13.5%9.4%
English15.5%13.1%9.5%
Norwegian6.6%7.5%—
American5.9%5.4%5.3%
Italian3.6%3.2%4.8%
Swedish3.6%1.4%—
French3.1%—1.6%
Mexican2.2%2.9%11.3%
Spanish0.5%0.3%—
Puerto Rican0.4%0.2%1.8%
Spaniard0.2%0.3%—
Blackfeet0.3%1.0%—
Turtle Mountain Chippewa0.3%——
Hispanic or Latino counts residents of any race; the race groups count only their non-Hispanic residents, so the groups are mutually exclusive and sum to 100%. Expand a row to see ancestries reported within that group.
Age and life stage
Measure
MT SD 42
Montana
United States
Median age
43.2
40.8
39.1
Age 18–24
7.5%
9.1%
9.2%
Age 65 and older
20.0%
20.0%
17.2%
Household economy
Measure
MT SD 42
Montana
United States
Median household income
$88,183
$72,509
$84,427
Poverty rate
6.4%
11.5%
12.5%
Bachelor's degree or higher (25+)
43.0%
35.3%
35.6%
Languages at home
Measure
MT SD 42
Montana
United States
Speaks a non-English language at home
2.8%
4.2%
22.3%
Religious landscape
Measure
MT SD 42
Montana
United States
Catholic
—
10.3%
18.6%
Evangelical Protestant
—
13.6%
16.5%
Unclaimed / not counted
—
65.3%
51.5%
American Community Survey 2024 5-year (CVAP, income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024 · 2020 U.S. Religion Census (ASARB) — congregational adherents; unclaimed is the residual not counted by congregations.
Montana 42nd State Senate District
presidential history
Presidential margin, 2004–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
2004
−18.7%
2008
+0.7%
2012
−10.5%
2016
−14.7%
2020
−13.2%
2024
−13.1%
DemocraticRepublican
6 presidential elections
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024). Swing · margin change from the prior cycle. vs U.S. · margin relative to the national result that year. † 2004, 2012 sub-county results are estimated: the source's block-level detail for these cycles was unreliable — either county/municipality-level consolidated reporting (COVID-era) or a precinct-to-block allocation that misplaced votes — so the figures are allocated from the constituent county totals in proportion to the place and scaled to certified totals.
Year
Won
Democratic
Republican
Other
Margin
Swing
vs U.S.
Total
R
41.9%Harris5,769
55.0%Trump7,565
3.1%
R+13.1
D+0.1
R+11.6
13,760
R
42.1%Biden5,488
55.2%Trump7,204
2.7%
R+13.2
D+1.5
R+17.6
13,043
R
38.5%Clinton3,925
53.2%Trump5,422
8.3%
R+14.7
R+4.2
R+16.8
10,192
R
43.4%Obama4,211
53.9%Romney5,225
2.7%
R+10.5
R+11.1
R+14.3
9,693
D
48.9%Obama4,541
48.2%McCain4,478
2.9%
D+0.7
D+19.4
R+6.6
9,284
R
40.0%Kerry3,352
58.8%Bush4,920
1.2%
R+18.7
—
R+16.3
8,371
current representation
Current officeholders
DMary Ann DunwellState Senate · 42
State legislative officeholder from OpenStates nightly current-legislator data.
In 2024 it voted Republican by R+13.1, against D+0.7 in 2008, having changed party at least once across the five cycles. The district had about 7,850 residents, 90.7% White alone in the 2024 ACS 5-year.
Across the recorded series it reached a Democratic high of 0.7 points in 2008 and a Republican high of 18.7 points in 2004. The 2024 margin was 13.1 points.
A population of 21,630, a 88% non-Hispanic-white share, and a median household income of $88,183 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 41 and State Senate District 45.
Akashic
Political twins — state-senate districts
The state-senate districts whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
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.
Montana 42nd State Senate District. Akashic. https://akashic.app/sld-upper/30042/. Accessed May 20, 2026. License: CC BY 4.0.
How did Montana 42nd State Senate District vote in 2024?
In 2024, Montana 42nd State Senate District voted Republican by 13.1 points (R+13.1), carried by the Republican candidate. Out of 13,760 votes cast, 5,769 went Democratic and 7,565 went Republican.
When did Montana 42nd State Senate District last vote Democratic?
The most recent presidential election in which Montana 42nd State Senate District voted Democratic was 2008.
How many people live in Montana 42nd State Senate District?
Montana 42nd State Senate District has a population of 21,630 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Montana 42nd State Senate District?
Median household income in Montana 42nd State Senate District is $88,183 — above the national median of $80,734. The Montana state median is $72,509.
What is the political history of Montana 42nd State Senate District?
Akashic tracks 6 presidential elections in Montana 42nd State Senate District from 2004 to 2024. Of those, 1 went Democratic and 5 went Republican.
