Oregon 31st State House District, Oregon: Urban anchor district. In 2024, voted D+34%. Republican peak: R+60 in 1904.
Key facts
- 2024 presidential margin
- D+34MIT Election Lab
- Political archetype
- Urban anchorAkashic typology
- Population
- 520,3872024 5-year
- Median household income
- $102,3382024 5-year
- White (non-Hispanic)
- 66.4%2024 5-year
- Black
- 2.7%2024 5-year
- Hispanic / Latino
- 16.5%2024 5-year
- Peak Democratic margin
- D+42 in 1936MIT Election Lab
- Peak Republican margin
- R+60 in 1904MIT Election Lab
Constituent county margins for State House District 31, OROne 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 |
|---|---|---|---|---|---|
| D | 170,493 | 81,779 | 263,132 | ||
| D | 187,073 | 87,337 | 284,184 | ||
| D | 139,547 | 72,035 | 239,549 | ||
| D | 127,986 | 77,338 | 212,897 | ||
| D | 133,729 | 74,016 | 213,481 | ||
| D | 117,889 | 89,346 | 210,072 | ||
| D | 88,393 | 72,143 | 170,584 | ||
| D | 75,281 | 54,747 | 148,589 | ||
| D | 69,352 | 48,973 | 157,453 | ||
| D | 64,767 | 58,990 | 126,177 | ||
| R | 52,545 | 68,689 | 121,733 | ||
| R | 44,546 | 53,779 | 114,467 | ||
| R | 44,483 | 50,799 | 99,366 | ||
| R | 37,872 | 46,381 | 88,336 | ||
| R | 34,764 | 37,845 | 76,501 | ||
| D | 44,467 | 24,992 | 69,806 | ||
| R | 31,006 | 35,029 | 66,102 | ||
| R | 27,744 | 33,119 | 60,863 | ||
| R | 24,474 | 32,746 | 57,536 | ||
| D | 21,470 | 20,279 | 43,645 | ||
| D | 23,099 | 17,667 | 41,313 | ||
| D | 22,358 | 16,736 | 39,346 | ||
| D | 23,280 | 9,206 | 33,887 | ||
| D | 17,043 | 10,080 | 28,554 | ||
| R | 9,245 | 16,139 | 25,819 | ||
| R | 4,844 | 10,752 | 21,455 | ||
| R | 5,603 | 10,287 | 16,991 | ||
| R | 7,706 | 9,865 | 18,469 | ||
| O | 3,018 | 2,416 | 9,566 | ||
| R | 2,314 | 4,721 | 7,692 | ||
| R | 788 | 4,268 | 5,787 | ||
| R | 1,595 | 3,017 | 4,882 | ||
| R | 2,514 | 3,653 | 6,271 | ||
| R | 676 | 2,579 | 5,219 | ||
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Demographics
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
14.6%
English
12.9%
Irish
9.9%
American
4.8%
Italian
3.4%
Scottish
2.8%
French
2.3%
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: 38.7 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
$102,338
State House District 31 ranks near the middle of US counties.
State House District 31$102,338
Oregon$83,011
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
Poverty rate
All persons below federal poverty line
9.0%
Child poverty is below the national average.
Children under 189.8%
Working age (18–64)8.6%
Seniors (65+)10.7%
Source · American Community Survey 5-year estimates, 2024 release.
Language at home
Population aged 5 and older
77.5%
speak English only
Spanish10.5%
Asian & Pacific Islander6.0%
Other Indo-European4.5%
Other languages1.4%
Source · ACS 5-year estimates, 2024.
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 66.5% of residents not counted as adherents by any reporting body.
Covering rural terrain in southern Oregon, this district delivered a nearly 30-point Republican presidential margin in 2024, placing it among the state's most politically homogeneous constituencies.
The Democratic margin in Oregon 31st State House District has been steady. It reached its modern peak at forty-two points in 1936; the 2024 margin was thirty-four points, still in line with the district's long pattern.
Its political identity is inseparable from its demographic profile: a 66% non-Hispanic-white share, a median household income of $102,338, and the full diversity of a major metropolitan center.
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 31, Oregon. Akashic. https://akashic.app/sld-lower/41031/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
Frequently asked questions
How did State House District 31, Oregon vote in 2024?
In 2024, State House District 31, Oregon voted Democratic by 33.7 points (D+34), carried by the Democratic candidate. Out of 263,132 votes cast, 170,493 went Democratic and 81,779 went Republican.
What is State House District 31, Oregon's political archetype?
Akashic classifies State House District 31, Oregon as a "Urban anchor" district based on its long-arc presidential voting pattern. Across 38 elections in the dataset, the district has voted Democratic 16 times, Republican 17 times, and other 1 times.
When did State House District 31, Oregon last vote Republican?
The most recent presidential election in which State House District 31, Oregon voted Republican was 1984.
How many people live in State House District 31, Oregon?
State House District 31, Oregon has a population of 520,387 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 31, Oregon?
Median household income in State House District 31, Oregon is $102,338 — above the national median of $80,734. The Oregon state median is $83,011.
What is the political history of State House District 31, Oregon?
Akashic tracks 38 presidential elections in State House District 31, Oregon from 1876 to 2024. Of those, 16 went Democratic and 17 went Republican. The district's archetype — "Urban anchor" — captures the overall trajectory of that voting record.