Marion County, Oregon: Democratic loyalist county. In 2024, voted R+2%. Republican peak: R+52 in 1904.
Key facts
- 2024 presidential margin
- R+2MIT Election Lab
- Political archetype
- Democratic loyalistAkashic typology
- Population
- 349,2442024 5-year
- Median household income
- $77,3512024 5-year
- White (non-Hispanic)
- 66.3%2024 5-year
- Black
- 1.2%2024 5-year
- Hispanic / Latino
- 29.0%2024 5-year
- Peak Democratic margin
- D+27 in 1936MIT Election Lab
- Peak Republican margin
- R+52 in 1904MIT Election Lab
- Most similar
- Polk County, OR · similarity 0.92
2024 results by precinct
2024 precinct map of Marion CountyPrecinct-level 2024 presidential results for Marion County, with each precinct boundary colored by Democratic-vs-Republican margin.
—
Margin—
Turnout—
Harris +50Trump +50
Real precinct boundaries. Hover for vote totals.
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| R | 73,967 | 77,083 | 156,681 | ||
| D | 80,872 | 79,002 | 165,534 | ||
| R | 57,788 | 63,377 | 136,840 | ||
| R | 56,376 | 60,190 | 120,376 | ||
| D | 61,816 | 59,059 | 124,563 | ||
| R | 57,671 | 69,900 | 129,619 | ||
| R | 49,430 | 57,443 | 113,334 | ||
| D | 48,637 | 46,415 | 107,463 | ||
| R | 41,137 | 42,145 | 110,334 | ||
| R | 41,193 | 45,292 | 88,492 | ||
| R | 36,440 | 54,535 | 91,209 | ||
| R | 32,134 | 42,191 | 85,449 | ||
| R | 33,781 | 35,497 | 72,331 | ||
| R | 23,908 | 36,441 | 63,361 | ||
| R | 22,327 | 30,417 | 55,502 | ||
| D | 32,091 | 18,897 | 51,209 | ||
| R | 20,791 | 29,124 | 49,970 | ||
| R | 16,170 | 28,990 | 45,160 | ||
| R | 12,337 | 29,887 | 42,448 | ||
| R | 13,183 | 18,997 | 33,171 | ||
| R | 11,907 | 16,176 | 28,601 | ||
| R | 14,031 | 16,940 | 31,227 | ||
| D | 15,536 | 8,595 | 26,071 | ||
| D | 12,572 | 8,633 | 22,131 | ||
| R | 6,998 | 11,754 | 18,971 | ||
| R | 3,996 | 8,351 | 16,016 | ||
| R | 3,831 | 8,798 | 13,298 | ||
| R | 5,699 | 8,316 | 14,988 | ||
| O | 2,588 | 2,523 | 8,085 | ||
| R | 2,239 | 3,788 | 6,618 | ||
| R | 1,084 | 4,106 | 5,863 | ||
| R | 2,318 | 3,112 | 5,725 | ||
| R | 3,419 | 3,744 | 7,344 | ||
| R | 879 | 2,979 | 5,985 | ||
| — | — | — | — | ||
| — | — | — | — | ||
| — | — | — | — | ||
| — | — | — | — |
Demographics
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
15.9%
English
11.8%
Irish
8.5%
American
3.3%
Italian
2.6%
Scottish
2.6%
French
2.3%
African American
1.0%
Multiple ancestry combinations reported; no single grouping above 1%.
American Indian, Alaska Native, Native Hawaiian, and Pacific Islander combined.
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: 37.5 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
$77,351
Marion County ranks in the top 25% of US counties.
Marion County$77,351
Oregon$83,011
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
Poverty rate
All persons below federal poverty line
13.0%
Children face moderate poverty.
Children under 1816.8%
Working age (18–64)11.9%
Seniors (65+)10.9%
Source · American Community Survey 5-year estimates, 2024 release.
Language at home
Population aged 5 and older
74.4%
speak English only
Spanish20.8%
Other Indo-European2.2%
Asian & Pacific Islander2.1%
Other languages0.4%
Source · ACS 5-year estimates, 2024.
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 54.1% of residents not counted as adherents by any reporting body.
Marion County, anchored by the state capital Salem, shifted to R+2 in 2024 after years of narrowing margins — a swing driven partly by Latino population growth in the mid-Willamette Valley offsetting suburban realignment patterns seen elsewhere in the state.
The Democratic margin in Marion County reached its widest at twenty-seven points in 1936. The margin in 2024 was two points — a notable narrowing.
Its loyalty is rooted in its place. Median household income of $77,351, a 66% non-Hispanic-white share, and a population of 349,244 together describe a community whose political habits are deeply settled. The county's voting pattern over the last decade is most similar to that of Polk County and Sangamon County.
Most similar counties
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Marion County, Oregon — The Long Memory. Akashic Intelligence — The Long Memory. https://akashic.app/county/41047/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
More democratic loyalist counties
Frequently asked questions
How did Marion County, Oregon vote in 2024?
In 2024, Marion County, Oregon voted Republican by 2.0 points (R+2), carried by the Republican candidate. Out of 156,681 votes cast, 73,967 went Democratic and 77,083 went Republican.
What is Marion County, Oregon's political archetype?
Akashic classifies Marion County, Oregon as a "Democratic loyalist" county based on its long-arc presidential voting pattern. Across 38 elections in the dataset, the county has voted Democratic 6 times, Republican 27 times, and other 1 times.
When did Marion County, Oregon last vote Democratic?
The most recent presidential election in which Marion County, Oregon voted Democratic was 2020.
How many people live in Marion County, Oregon?
Marion County, Oregon has a population of 349,244 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Marion County, Oregon?
Median household income in Marion County, Oregon is $77,351 — below the national median of $80,734. The Oregon state median is $83,011.
What is the political history of Marion County, Oregon?
Akashic tracks 38 presidential elections in Marion County, Oregon from 1876 to 2024. Of those, 6 went Democratic and 27 went Republican. The county's archetype — "Democratic loyalist" — captures the overall trajectory of that voting record.