Marion County, OR demographics:
population, income, and more

Total population
349,244
0.8% year-over-year change
Median household income
$77,351/yr
3.6% year-over-year change
Housing units
132,295
1.3% year-over-year change

Marion County population

How many people live in Marion County

Marion County is home to 349,244 residents, according to the most recent Census data. Gender-wise, 50.2% of Marion County locals are male, and 49.8% are female.

Total population
349,244
0.8% year-over-year change
Gender ratio
Male
50.2%
175,414
Female
49.8%
173,830
Value Percent YoY change
Male 175,414 50.2% 1.0%
Female 173,830 49.8% 0.6%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in Marion County is 38, with the population distributed as follows: about 19.3% are children under 15, then 13.6% are in the 15 to 24 age group. Adults between 25 and 44 make up 27.4% of the population, while another 23.1% fall into the 45 to 64 bracket. Finally, around 16.7% are 65 or older.

Median age
37.5
Age breakdown
Under 15
19.3%
15 to 24
13.6%
25 to 44
27.4%
45 to 64
23.1%
Over 65
16.7%
Value Percent YoY change
Under 15 67,258 19.3% -1.4%
15 to 24 47,312 13.6% 2.1%
25 to 44 95,623 27.4% 1.4%
45 to 64 80,673 23.1% -0.2%
Over 65 58,378 16.7% 2.7%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

In Marion County, 84.8% of the population are US-born citizens, while 6.6% have gained naturalized citizenship. At the same time, 8.6% of residents are non-citizens. As for race, 66.2% of locals are Caucasian, 1.2% are African American and 2% have Asian roots. Another 1.2% are Indigenous American, 1.1% are Pacific Islanders, while 11.1% identify as another race. There’s also a share of 17.1% that includes residents with two or more races.

Citizenship
U.S.-born citizens
84.8%
Non-U.S.-born citizens
6.6%
Non-citizens
8.6%
Value Percent YoY change
U.S.-born citizens 296,311 84.8% 0.6%
Non-U.S.-born citizens 22,970 6.6% 3.6%
Non-citizens 29,963 8.6% 0.9%
Racial breakdown
White
66.2%
Black or African American
1.2%
American Indian and Alaska Native
1.2%
Asian
2%
Native Hawaiian and other Pacific Islander
1.1%
Two or more races
17.1%
Other
11.1%
Value Percent
White 231,379 66.2%
Black or African American 4,236 1.2%
American Indian and Alaska Native 4,297 1.2%
Asian 7,059 2%
Native Hawaiian and other Pacific Islander 3,817 1.1%
Two or more races 59,819 17.1%
Other 38,637 11.1%

Households in Marion County

A peek inside Marion County households

Marion County has 126,870 households, with an average of 3 members in each. Of these, 66.7% are families, while the remaining 33.3% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
126,870
1.2% year-over-year change
Average people per household
3
Non-family households
42,267
Family households
84,603
Value Percent YoY change
Non-family households 42,267 33.3% 2.8%
Family households 84,603 66.7% 0.4%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in Marion County

The housing landscape of Marion County

Marion County's housing consists of 132,295 units, with 62.7% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 4% and offer a more compact, shared living style. Then there are the multifamily buildings in the area, and for those seeking flexibility, non-traditional options like mobile homes account for 7.4% of the housing landscape.

Housing units
132,295
1.3% year-over-year change
Housing types
Value Percent
1 unit, detached 82,976 62.7%
1 unit, attached 5,290 4%
2 units 3,472 2.6%
3 or 4 units 7,147 5.4%
5 to 9 units 8,054 6.1%
10 to 19 units 6,914 5.2%
20 to 49 units 3,617 2.7%
50 or more units 4,617 3.5%
Mobile home 9,736 7.4%
Boat, RV, van, etc. 472 0.4%
Homes built since 2020
3,471
61.7% year-over-year change

The age of buildings in Marion County

In Marion County, the median construction year is 1979. About 8% of homes were built before the 1940s, with another 4.1% going up by 1949. Most development happened in the second half of the 20th century. Then, 12.9% of homes were added from 2000 to 2009, 7.8% between 2010 and 2019, and 2.6% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 10,594 8% -1.2%
Built between 1940 and 1949 5,440 4.1% 5.7%
Built between 1950 and 1959 9,974 7.5% 0.1%
Built between 1960 and 1969 13,075 9.9% 2.0%
Built between 1970 and 1979 28,897 21.8% -0.8%
Built between 1980 and 1989 13,048 9.9% 1.8%
Built between 1990 and 1999 20,385 15.4% -6.8%
Built between 2000 and 2009 17,044 12.9% 3.1%
Built between 2010 and 2019 10,367 7.8% 9.5%
Built in 2020 or later 3,471 2.6% 61.7%
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

Marion County occupancy rates

Out of the 126,870 occupied housing units in Marion County, 62.3% are owner-occupied, while 37.7% are lived in by tenants. Meanwhile, 4.1% of all homes on the local market sit vacant.

Occupied housing units
126,870
1.2% year-over-year change
Occupancy breakdown
Renter occupied
47,816
Owner occupied
79,054
Value Percent YoY
change
Renter occupied 47,816 37.7% 1.0%
Owner occupied 79,054 62.3% 1.3%
Unoccupied housing units
4.1%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

Marion County housing costs

Housing costs in Marion County come to a median of $1,461 per month, while tenants specifically pay a median gross rent of $1,414.

Median housing costs per month
$1,461/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.
Median gross rent in Marion County
$1,414/month
Gross rent gives a more complete look at what renters actually pay, including not just base rent, but also utilities and fees. It’s a key number for evaluating rental affordability in your area of interest and understanding how it compares to nearby locations.

Education in Marion County

Marion County education at a glance

About 35.3% of the population in Marion County went to high school, while 25.3% pursued college studies. Another 9.1% earned an associate degree and 15.8% hold a bachelor’s. Meanwhile, 8% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 17,386 6.5% -0.1%
High school diploma 94,253 35.3% 3.2%
College diploma 67,491 25.3% -0.7%
Associate degree 24,325 9.1% 0.2%
Bachelor's degree 42,150 15.8% 0.7%
Graduate degree 21,443 8% 3.0%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in Marion County

How much people earn in Marion County

The average annual household income in Marion County was $100,449 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +4.7% change from the previous year. At the same time, the median income stood at $77,351, reflecting a +3.6% shift over the same period.

Average household income in Marion County
$100,449/year
4.7% year-over-year change
Median household income in Marion County
$77,351/year
3.6% year-over-year change

Marion County income by age

In Marion County, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $82,774. Those with someone between 45 and 64 in charge, often well established professionally, earn $95,308 overall. Younger households, where the main provider is under 25 and just starting out, report a median income of $51,162, while those led by someone over 65, many of whom may be retired, have about $57,979 in earnings. Overall, 87.1% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
Under 25 $51,162 13.3%
25 - 44 $82,774 4.0%
45 - 64 $95,308 4.7%
Over 65 $57,979 1.0%
Above poverty level
292,294
Below poverty level
43,417
Value Percent YoY
change
Above poverty level 292,294 87.1% 0.8%
Below poverty level 43,417 12.9% -0.1%

Employment in Marion County

Workforce and job types in Marion County

The job market in Marion County is powered by 162,378 working residents, spread across a range of industries and roles. 73.4% of the working population are employed in professional or administrative positions, while 26.6% are in hands-on or service-based jobs. Also, 9.1% run their own businesses, 64.8% are employed by private companies, and 17.9% work in the public sector.

Workforce demographics

Working population
162,378
1.8% year-over-year change
White collar
119,172
Blue collar
43,206
Value Percent YoY change
White collar 119,172 73.4% 1.8%
Blue collar 43,206 26.6% 1.9%
Employer type
Self employees
9.1%
Private companies
64.8%
Governmental workers
17.9%
Not for profit companies
8.2%
Value Percent YoY change
Self employees 14,799 9.1% 2.3%
Private companies 105,279 64.8% 2.2%
Governmental workers 29,032 17.9% -1.3%
Not for profit companies 13,268 8.2% 4.5%
Unemployment rate
5.3%
5.2% year-over-year change

Available workforce

The unemployment rate in Marion County stands at 5.3%, representing the share of the workforce currently without a job and actively looking for one.

For renters, the unemployment rate helps paint a picture of job security and financial stability in the area. Rates around 4% to 5% are considered typical. A lower-than-average rate might suggest strong job prospects and a thriving local economy, while a higher rate could hint at fewer opportunities—both useful to consider when planning a move.

Transportation in Marion County

How people get around in Marion County

Commuting methods vary: 81.6% of residents travel by personal vehicle and 2.5% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Means of transportation
Value Percent YoY change
Car 130,150 81.6% 0.3%
Taxicab 227 0.1% -5.4%
Bus or trolleybus 1,953 1.2% 0.1%
Subway or elevated 25 0% N/A
Motorcycle 323 0.2% -3.9%
Bicycle 934 0.6% -13.0%
Walk 3,960 2.5% 10.0%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

What is the median and average household income in Marion County by zipcode?

Zipcode Population Number of households Median income Average income
97301 57,574 20,426 $60,422 $72,972
97302 40,799 17,196 $85,833 $114,512
97303 40,659 15,351 $84,871 $100,854
97305 45,083 15,039 $66,326 $80,469
97032 5,044 1,770 $101,250 $116,472
97071 33,123 11,258 $70,938 $96,366
97137 989 385 $106,488 $133,811
97002 6,358 2,389 $70,137 $102,016
97020 1,133 401 $80,729 $95,756
97026 3,959 1,182 $90,461 $114,224

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FAQs about Marion County demographics 

What is the total population of Marion County?

Marion County has a total population of 349,244 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by +0.8% compared to a year ago.

What is the gender ratio in Marion County?

The gender ratio in Marion County is as follows:
  • 50.2% males (175,414 residents)
  • 49.8% females (173,830 residents)

What is the median age in Marion County?

The median age in Marion County is 37.5.

What is the age distribution of the population in Marion County?

The age distribution in Marion County is as follows:
  • Under 15: 19.3% (67,258 residents)
  • Ages 15-24: 13.6% (47,312 residents)
  • Ages 25-44: 27.4% (95,623 residents)
  • Ages 45-64: 23.1% (80,673 residents)
  • Over 65: 16.7% (58,378 residents)

What is the racial and ethnic makeup of Marion County?

The racial and ethnic makeup of Marion County is as follows:
  • White: 66.2% (231,379 residents)
  • Black or African American: 1.2% (4,236 residents)
  • American Indian and Alaska Native: 1.2% (4,297 residents)
  • Asian: 2% (7,059 residents)
  • Native Hawaiian and Other Pacific Islander: 1.1% (3,817 residents)
  • Two or More Races: 17.1% (59,819 residents)
  • Other: 11.1% (38,637 residents)

What percentage of the population in Marion County are U.S.-born citizens?

U.S.-born citizens represent 84.8% of the population in Marion County.

How many housing units are there in Marion County?

There are 132,295 housing units in Marion County, reflecting a +1.3% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in Marion County and what is the average household size?

Marion County has a total of 126,870 households, with an average of 3 people in each.

What is the median household income in Marion County?

Marion County has a median household income of $77,351, representing a +3.6% shift from the previous year, according to the U.S. Census Bureau.

What is the employment rate and job market overview for Marion County?

The employment rate is 94.7% in Marion County, with a workforce of 162,378 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 73.4% (119,172 residents)
  • Blue-collar workers: 26.6% (43,206 residents)

Places of employment:
  • Self-employed: 9.1% (14,799 residents)
  • Private companies: 64.8% (105,279 residents)
  • Governmental workers: 17.9% (29,032 residents)
  • Not-for-profit companies: 8.2% (13,268 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025