- Lead
- 560
- Total
- 6,727
- vs nation
- R+6.9
North Dakota 18th State Senate District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 236
- Total
- 6,895
- vs nation
- R+7.9
- Lead
- 669
- Total
- 6,977
- vs nation
- R+11.7
- Lead
- 460
- Total
- 6,993
- vs nation
- D+2.7
- Lead
- 1,038
- Total
- 7,305
- vs nation
- D+6.9
- Lead
- 402
- Total
- 7,023
- vs nation
- R+3.3
- Lead
- 638
- Total
- 6,544
- vs nation
- R+10.3
- Lead
- 448
- Total
- 6,060
- vs nation
- R+1.1
Key facts
- 2024 presidential margin
- R+8.3MIT Election Lab
- Population
- 16,1822024 5-year
- Population density
- 230 / sq mi2024 5-year · TIGER/Line
- Land area
- 70.5 sq miTIGER/Line
- Median household income
- $64,0272024 5-year
- White (non-Hispanic)
- 80.2%2024 5-year
- Black
- 3.2%2024 5-year
- Hispanic / Latino
- 5.9%2024 5-year
- Peak Democratic margin
- D+39.7 in 1936MIT Election Lab
- Peak Republican margin
- R+46.4 in 1924MIT Election Lab
- Most similar
- State Senate District 21, ND · twin score 90.6
presidential history
Party record book
North Dakota 18th State Senate District · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1892–2024 · 34 presidential cycles
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
Franklin D. Roosevelt1936
65.4%
2,311 votes · D+39.7 · modeled estimate
Runner-up · Lyndon B. Johnson, 1964 · 63.5%
Republican
Warren G. Harding1920
70.3%
1,596 votes · R+41.9 · modeled estimate
Runner-up · Theodore Roosevelt, 1904 · 67.6%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Barack Obama2008
4,057votes
55.5% of the vote · D+14.2 · modeled estimate
Runner-up · Barack Obama, 2012 · 3,591 votes
Republican
George W. Bush2004
3,634votes
51.7% of the vote · R+5.7 · modeled estimate
Runner-up · Donald Trump, 2024 · 3,540 votes
Best relative to the U.S.
This Place’s margin against the national margin in the same election — positive when it leaned toward the party more than the country did.
Democratic
Woodrow Wilson1916
+16.9pts D vs U.S.
Place D+20.0 · U.S. D+3.1 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1936 · +15.5 pts
Republican
Benjamin Harrison1892
+47.9pts R vs U.S.
Place R+46.2 · U.S. D+1.7 · a third-party candidate carried the Place · modeled estimate
Runner-up · Calvin Coolidge, 1924 · +21.2 pts
Current officeholders
State legislative officeholder from OpenStates nightly current-legislator data.
Senate and governor results are in the Office selector at the top of this page.
U.S. House
Each row is a county-allocated estimate of U.S. House votes for this district — county returns apportioned onto its boundary, not precinct-counted. “Vote lead” is the estimated local lead here, not necessarily the winner of the full contest.
North Dakota 18th State Senate District sits in the Northern Plains. In 2024 it voted Republican.
Across the recorded series it reached a Democratic high of 39.7 points in 1936 and a Republican high of 46.4 points in 1924. Between 2020 and 2024 the district moved 4.9 points toward the Republican candidate; the 2024 margin was 8.3 points.
A population of 16,182, a 80% non-Hispanic-white share, and a median household income of $64,027 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 21 and State Senate District 42.
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.
District research tools
Open the source-auditable district brief for electoral baseline, electorate, current-cycle coverage, geography, official dates, and methodology. Open campaign intelligence report → · Browse all comparisons →
North Dakota 18th State Senate District. Akashic. https://akashic.app/sld-upper/38018/. Accessed May 20, 2026. License: CC BY 4.0.