County · Oregon
Marion County, Oregon
Marion County, Oregon. Marion County had 355,777 residents in 2025 by the Census Bureau's estimate, up 2.8% since 2020, faster than Oregon (+0.9%). It holds 27 places (20 cities, villages and boroughs and 7 census-designated) and 65 census tracts. GEOID 41047.
Marion County is one of the 2 counties of the Salem, OR metropolitan statistical area (the Census Bureau's July 2023 delineation).
Residents, July 2025 estimate
355,777
Census Bureau estimate (no margin published)
2020 Census count: 345,920 · ACS 2020-2024: 349,244
Median household income
$77,351
±$1,920 (90% margin)
Oregon: $83,011
Median home value
$416,400
±$4,764 (90% margin)
Oregon: $477,600
Median gross rent
$1,414
±$20 (90% margin)
Oregon: $1,525
How many people live in Marion County, and is it growing?
The 2020 Census counted 345,920 residents in Marion County. The Census Bureau estimates 355,777 for July 1, 2025, up 2.8% since 2020, faster than Oregon (+0.9%). The 2020-2024 American Community Survey puts the population at 349,244 over 1,181 square miles of land.
| Measure | Marion County | Oregon | Change since 2015-2019 |
|---|---|---|---|
| Total population | 349,244 | 4,254,293 | +9,603 |
| Households | 126,870±667 | 1,718,422 | +8,832 |
| Average household size | 2.66±0.01 | 2.42 | −0.13 |
| Housing units | 132,295±116 | 1,857,992 | +6,085 |
Marion County's population since 2000
From 284,834 in 2000 to 355,777 in 2025: up 24.9%. The 2000, 2010 and 2020 figures are census counts. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); PEP Vintage 2025 (CO-EST2025); 2020 Census · Check it at data.census.gov
What cities and towns are in Marion County?
Marion County holds 27 places: 20 cities, villages and boroughs (incorporated places) and 7 census-designated places. The largest is Salem with 181,779 residents (2025 estimate). Places that cross a county line are listed with the share of their 2020 residents who live in this county.
| Salem | 175,535 | $75,487 |
|---|---|---|
| Keizer | 39,376 | $84,813 |
| Woodburn | 26,013 | $67,347 |
| Hayesville | 21,891 | $58,624 |
| Four Corners | 16,740 | $69,669 |
| Silverton | 10,484 | $79,960 |
| Stayton | 8,244 | $78,268 |
| Aumsville | 4,234 | $90,987 |
| Hubbard | 3,426 | $101,771 |
| Mount Angel | 3,392 | $62,232 |
| Jefferson | 3,327 | $102,159 |
| Sublimity | 2,967 | $77,969 |
| Gervais | 2,595 | $83,043 |
| Turner | 2,454 | $101,979 |
| Aurora | 1,133 | $107,500 |
| Donald | 1,009 | $80,729 |
| Gates | 548 | $65,670 |
| BrooksGEOID 4108750 | 472 | not published |
| Labish VillageGEOID 4140050 | 454 | not published |
| St. Paul | 434 | $138,409 |
| Scotts MillsGEOID 4165800 | 419 | $66,806 |
| Mill City | 1,971 | $69,091 |
| MehamaGEOID 4147300 | 317 | not published |
| MarionGEOID 4145900 | 307 | $63,859 |
| ButtevilleGEOID 4110100 | 273 | $120,139 |
| DetroitGEOID 4119100 | 203 | $63,125 |
| IdanhaGEOID 4135800 | 156 | $40,208 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 place-by-county parts · Check it at data.census.gov
Who lives in Marion County?
The median resident of Marion County is 37.5 years old; 23.5% are under 18 and 16.7% are 65 or older. The largest group is non-Hispanic white residents at 60.7%, then Hispanic or Latino residents (of any race) at 29.0%. 13.7% of residents were born outside the United States.
| Measure | Marion County | Oregon | Change since 2015-2019 |
|---|---|---|---|
| Median age | 37.5±0.2 | 40.4 | +0.9 |
| Under 18 years | 23.5% | 19.9% | – |
| 65 years and over | 16.7%±0.1 pts | 19.1% | – |
| Hispanic or Latino (any race) | 29.0% | 14.7% | +2.4 pts |
| White alone, not Hispanic | 60.7%±0.2 pts | 71.4% | −4.8 pts |
| Black or African American alone, not Hispanic | 1.2%±0.1 pts | 1.8% | no clear change |
| Asian alone, not Hispanic | 2.0%±0.2 pts | 4.4% | no clear change |
| American Indian and Alaska Native alone, not Hispanic | 0.5%±0.1 pts | 0.6% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 1.1%±0.1 pts | 0.4% | – |
| Two or more races, not Hispanic | 5.1%±0.4 pts | 6.1% | – |
| Some other race alone, not Hispanic | 0.5%±0.2 pts | 0.6% | – |
| Born outside the United States | 13.7%±0.6 pts | 9.8% | +1.1 pts |
| Speak a language other than English at home (age 5+) | 25.6%±0.7 pts | 15.2% | – |
| Civilian veterans (age 18+) | 7.3%±0.4 pts | 7.2% | – |
| With a disability | 15.8%±0.6 pts | 15.5% | – |
| No health insurance coverage | 8.6%±0.6 pts | 5.9% | no clear change |
| High school graduate or higher (age 25+) | 86.1%±0.6 pts | 91.8% | – |
| Bachelor's degree or higher (age 25+) | 26.0%±0.7 pts | 36.8% | +2.5 pts |
| Graduate or professional degree (age 25+) | 9.1%±0.5 pts | 14.1% | – |
| Moved from another state in the past year | 1.9%±0.3 pts | 3.0% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Marion County earn?
Half of Marion County's 126,870 households earn less than $77,351 a year (±$1,920), against $83,011 in Oregon. In 2015-2019 the median was $73,380 in 2024 dollars, so it rose by $3,971 after inflation. 13.0% of residents live below the poverty line.
| Measure | Marion County | Oregon | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $77,351±$1,920 | $83,011 | +$3,971 |
| Mean household income | $100,449±$2,594 | $111,542 | – |
| Per capita income | $37,306±$918 | $45,612 | +$3,661 |
| People below the poverty line | 13.0%±0.8 pts | 11.9% | no clear change |
| Children under 18 below the poverty line | 16.8%±1.8 pts | 13.2% | −2.7 pts |
| Households receiving SNAP | 19.7%±1.0 pts | 16.0% | – |
| Households with a broadband subscription | 91.6%±0.7 pts | 92.4% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Marion County?
Owners occupy 62.3% of Marion County's occupied homes and renters 37.7%. The median owner-occupied home is valued at $416,400 by its owner (±$4,764). The median renter pays $1,414 a month including utilities, and 44.2% of renters pay 35% or more of their income on rent.
| Measure | Marion County | Oregon | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $416,400±$4,764 | $477,600 | +$112,296 |
| Median gross rent | $1,414±$20 | $1,525 | +$202 |
| Renters paying 35% or more of income on rent | 44.2%±2.3 pts | 43.1% | +3.3 pts |
| Median monthly owner costs, with a mortgage | $1,959±$30 | $2,157 | – |
| Owner-occupied homes | 62.3%±1.1 pts | 63.3% | +2.1 pts |
| Housing units | 132,295±116 | 1,857,992 | +6,085 |
| Homeowner vacancy rate | 0.4%±0.2 pts | 0.7% | – |
| Rental vacancy rate | 4.4%±1.0 pts | 4.2% | – |
| Single-family detached homes | 62.7%±1.3 pts | 62.7% | – |
| Mobile homes | 7.4%±0.6 pts | 7.1% | – |
| Built 2020 or later | 2.6%±0.3 pts | 2.1% | – |
| Built 1939 or earlier | 8.0%±0.5 pts | 10.7% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Marion County building?
Builders took permits for 1,323 new housing units across Marion County in 2025 (784 single-family), 3.7 per 1,000 residents.
Source: Building Permits Survey, annual county files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Marion County get to work?
70.0% of Marion County's workers drive alone and 12.7% work from home. The average trip to work takes 24.1 minutes. The unemployment rate in 2020-2024 averaged 5.3%.
| Measure | Marion County | Oregon | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 62.0%±0.7 pts | 62.3% | – |
| Unemployment rate | 5.3%±0.5 pts | 5.4% | no clear change |
| Drove alone to work | 70.0%±1.2 pts | 64.5% | – |
| Carpooled | 11.6%±0.9 pts | 8.5% | – |
| Public transportation | 1.3%±0.4 pts | 2.2% | – |
| Walked | 2.5%±0.3 pts | 3.3% | – |
| Worked from home | 12.7%±0.9 pts | 19.0% | +7.6 pts |
| Mean travel time to work | 24.1 min±0.5 | 23.0 min | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What are Marion County's census tracts?
Marion County is divided into 65 census tracts. Among those with a reliable estimate, median household income runs from $38,852 (Tract 5.02) to $130,625 (Tract 24).
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · Check it at data.census.gov
How does Marion County compare with Oregon's other counties?
| Measure | Rank |
|---|---|
| Population | 5th of 36 |
| Growth 2020-2025 | 8th of 36 |
| Residents per square mile | 3rd of 36 |
| Median household income | 11th of 36 |
| Median home value | 15th of 36 |
| Median gross rent | 7th of 36 |
| Poverty rate | 18th of 36 |
| Bachelor's degree or higher | 17th of 36 |
| Median age | 32nd of 36 |
Source: PlainCities ranks from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Marion County are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.