Marion County, Oregon: New American county. In 2024, voted R+2%. Republican peak: R+52 in 1904.
Key facts
- 2024 presidential margin
- R+2MIT Election Lab
- Political typology
- New AmericanAkashic 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.
presidential history
Presidential margin, 1876–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1876 | No data |
| 1880 | No data |
| 1884 | No data |
| 1888 | No data |
| 1892 | −35.1% |
| 1896 | −4.4% |
| 1900 | −13.9% |
| 1904 | −51.5% |
| 1908 | −23.4% |
| 1912 | +0.8% |
| 1916 | −17.5% |
| 1920 | −37.4% |
| 1924 | −27.2% |
| 1928 | −25.1% |
| 1932 | +17.8% |
| 1936 | +26.6% |
| 1940 | −9.3% |
| 1944 | −14.9% |
| 1948 | −17.5% |
| 1952 | −41.3% |
| 1956 | −28.4% |
| 1960 | −16.7% |
| 1964 | +25.8% |
| 1968 | −14.6% |
| 1972 | −19.8% |
| 1976 | −2.4% |
| 1980 | −11.8% |
| 1984 | −19.8% |
| 1988 | −4.6% |
| 1992 | −0.9% |
| 1996 | +2.1% |
| 2000 | −7.1% |
| 2004 | −9.4% |
| 2008 | +2.2% |
| 2012 | −3.2% |
| 2016 | −4.1% |
| 2020 | +1.1% |
| 2024 | −2.0% |
DemocraticRepublican
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
2024 ACS
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.
2024 ACS
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.
2024 ACS
Median household income
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
Marion County ranks in the top 25% of US counties by median household income.
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
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.
2024 ACS
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.
2020 religion census
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.
Marion County has leaned Republican in recent presidential elections, reaching a Democratic margin of twenty-seven points in 1936. Between 2020 and 2024 it moved three points toward the Republican candidate — part of the sharpest rightward shift recorded among any group of places in the country.
Its demographics describe the shift: a 66% non-Hispanic-white share, a median household income of $77,351, and a population of 349,244. The county's voting pattern over the last decade is most similar to that of Polk County and Sangamon County.
Most similar counties
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.
Marion County, Oregon. Akashic. https://akashic.app/county/41047/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
More new american 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 typology?
Akashic places Marion County, Oregon in the "New American" typology — Communities where a large share of households speak a language other than English — multilingual, Democratic-leaning overall, yet the hardest-swinging bloc toward the Republican Party in 2024. The typology is a data-driven cluster built from vote share, vote swing, race and ethnicity, income, language spoken at home, religion, and ancestry. 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 typology — "New American" — captures where that record, its demographics, and its recent swing place it among American communities.