- Lead
- 1,058
- Total
- 13,045
- vs nation
- D+9.6
New Mexico 31st State Senate District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 3,738
- Total
- 13,191
- vs nation
- D+23.9
- Lead
- 4,145
- Total
- 10,741
- vs nation
- D+36.5
- Lead
- 3,894
- Total
- 10,239
- vs nation
- D+34.2
- Lead
- 4,549
- Total
- 10,942
- vs nation
- D+34.3
- Lead
- 2,661
- Total
- 9,455
- vs nation
- D+30.6
- Lead
- 2,104
- Total
- 7,157
- vs nation
- D+28.9
- Lead
- 2,381
- Total
- 6,717
- vs nation
- D+26.9
Key facts
- 2024 presidential margin
- D+8.1MIT Election Lab
- Population
- 51,4142024 5-year
- Population density
- 252 / sq mi2024 5-year · TIGER/Line
- Land area
- 204 sq miTIGER/Line
- Median household income
- $53,0902024 5-year
- White (non-Hispanic)
- 10.3%2024 5-year
- Black
- 0.7%2024 5-year
- Hispanic / Latino
- 87.6%2024 5-year
- Peak Democratic margin
- D+67.0 in 1932MIT Election Lab
- Most similar
- State Senate District 11, NM · twin score 93.3
presidential history
Party record book
New Mexico 31st State Senate District · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1912–2024 · 29 presidential cycles
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
Franklin D. Roosevelt1932
83.4%
1,068 votes · D+67.0 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1936 · 83.3%
Republican
Ronald Reagan1984
48.4%
2,571 votes · D+3.0 · modeled estimate
Runner-up · Donald Trump, 2024 · 45.1%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
8,335votes
63.2% of the vote · D+28.3 · modeled estimate
Runner-up · Barack Obama, 2008 · 7,729 votes
Republican
Donald Trump2024
5,882votes
45.1% of the vote · D+8.1 · modeled estimate
Runner-up · Donald Trump, 2020 · 4,597 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
Harry S. Truman1948
+49.6pts D vs U.S.
Place D+54.1 · U.S. D+4.5 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1932 · +49.2 pts
Republican
Donald Trump2024
−9.6pts R vs U.S.
Place D+8.1 · U.S. R+1.5 · modeled estimate
Runner-up · Ronald Reagan, 1980 · −18.8 pts
Current officeholders
State legislative officeholder from OpenStates nightly current-legislator data.
New Mexico 31st State Senate District sits in the desert Southwest. In 2024 it voted Democratic.
Across the recorded series it reached a Democratic high of 67.0 points in 1932. Between 2020 and 2024 the district moved 20.2 points toward the Republican candidate; the 2024 margin was 8.1 points.
A population of 51,414, a 10% non-Hispanic-white share, and a median household income of $53,090 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 11 and State Senate District 14.
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 →
New Mexico 31st State Senate District. Akashic. https://akashic.app/sld-upper/35031/. Accessed May 20, 2026. License: CC BY 4.0.