Marion County, Oregon Population 2024

346,763

Marion County, Oregon's estimated 2024 population is 346,763 with a growth rate of 0.01% in the past year according to the most recent United States census data. Marion County, Oregon is the 5th largest county in Oregon. The 2010 population was 315,948 and has seen a growth of 9.75% since that time.

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
2029346,873220.01%
2028346,851220.01%
2027346,829220.01%
2026346,807220.01%
2025346,785220.01%
2024346,763220.01%
2023346,741220.01%
2022346,719-1,132-0.33%
2021347,8511,5010.43%
2020346,350-1,207-0.35%
2019347,5572,0450.59%
2018345,5124,6661.37%
2017340,8465,2541.57%
2016335,5926,4861.97%
2015329,1064,6331.43%
2014324,4732,9820.93%
2013321,4911,6260.51%
2012319,8651,8120.57%
2011318,0532,1050.67%
2010315,94800%
1990228,48323,79111.62%
1980204,69253,38335.28%
1970151,30930,42125.16%
1960120,88819,48719.22%
1950101,40126,15534.76%
194075,24614,70524.29%
193060,54113,35428.3%
192047,1877,40718.62%
191039,78012,06743.54%
190027,7134,77920.84%
189022,9348,35857.34%
188014,5764,61146.27%
18709,9652,87740.59%
18607,0884,339157.84%
18502,749-344,124-99.21%
showing: 35 rows
2024 Growth Rate
0.01% (22)
County Website
Marion County
State
Oregon
County Seat
2020 Population
346,350
Area
1181 mi²
Density
294 people/mi²
Growth Since 2020
0.12% (413)
Founded
July 5, 1843

Marion County, Oregon Population 2024

Population by Race

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Race
Population
Percentage (of total)
White247,49271.57%
Two or more races44,50812.87%
Other race34,82010.07%
Asian7,1552.07%
Black or African American4,1431.2%
Native American4,0361.17%
Native Hawaiian or Pacific Islander3,6611.06%

White

Two or more races

Other race

Asian

Black or African American

Native American

Native Hawaiian or Pacific Islander

Marion County, Oregon Population by Race

Marion County, Oregon Population Pyramid 2024

Marion County, Oregon Median Age

37

Total

36

Male

38

Female

Marion County, Oregon Adults

There are 262,897 adults, (55,866 of whom are seniors) in Marion County, Oregon.

Marion County, Oregon Age Dependency

67

Age Dependency Ratio

27

Old Age Dependency Ratio

40.1

Child Dependency Ratio

Marion County, Oregon Sex Ratio

Female172,19249.79%
Male173,62350.21%

Marion County, Oregon Population by Age

Marion County, Oregon Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All123,4602.7161.838.2
Married59,2853.3976.523.5
Non Family41,0361.349.150.9
Female15,6153.4348.151.9
Male7,5243.5843.456.6

3.26

Average Family Size

2.71

Average Household Size

61.8%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Marion County, Oregon Households and Families

Male

Female

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Education Attained
Count
Percentage
Less Than 9th Grade16,5527.19%
9th to 12th Grade16,2457.06%
High School Graduate58,06025.24%
Some College59,51225.87%
Associates Degree22,1719.64%
Bachelors Degree37,53016.31%
Graduate Degree20,0068.7%

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Marion County, Oregon Educational Attainment by Sex (over 25)

Marion County, Oregon Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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Race
Total
High School
Bachelors
White161,993151,28048,416
Hispanic48,54428,6764,017
2+ Races23,12616,3083,146
Other Race17,9699,4931,169
Asian5,0674,2161,992
Native American2,7962,086394
Black2,4262,250682
Islander1,9771,661282

The highest rate of high school graduation is among white people with a rate of 93.39%.

The highest rate of bachelors degrees is among asian people with a rate of 39.31%.

Marion County, Oregon Educational Attainment by Race

All

Male

Female

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Name
Average
Male
Female
Overall$42,562$47,983$37,454
Less Than 9th Grade$31,563$34,197$25,757
High School Graduate$34,762$40,989$28,564
Some College$43,166$50,585$36,751
Bachelors Degree$60,754$70,992$51,732
Graduate Degree$74,981$85,909$68,820

$42,562

Average Earnings

$47,983

Average Male

$37,454

Average Female

Marion County, Oregon Earnings by Educational Attainment

Marion County, Oregon Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Marion County, Oregon Language

74.57% of Marion County, Oregon residents speak only English, while 25.43% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 20.63% of the population.

Marion County, Oregon Language

Marion County, Oregon Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
White210,59722,49310.68%
Hispanic94,40515,17916.08%
Other34,5657,59121.96%
Multiple42,5056,55815.43%
Black3,7021,13530.66%
Islander3,65299527.25%
Asian6,83381211.88%
Native3,90962816.07%

12.99%

Overall Poverty Rate

12.47%

Male Poverty Rate

13.51%

Female Poverty Rate

Poverty in Marion County, Oregon

The race most likely to be in poverty in Marion County, Oregon is Black, with 30.66% below the poverty level.

The race least likely to be in poverty in Marion County, Oregon is White, with 10.68% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 3.07%. Among those working part-time, it was 15.06%, and for those that did not work, the poverty rate was 21.03%.

Marion County, Oregon Poverty

rate

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Rate
Poverty
Less Than 9th Grade21.03%
High School12.92%
Some College9.73%
Bachelors or Greater5.15%

Marion County, Oregon Poverty Rate by Education

rate

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Rate
Poverty
Female Unemployed40.64%
Male Unemployed29.94%
Female Employed6.67%
Male Employed5.93%

Marion County, Oregon Poverty Rate by Employment Status and Sex

Marion County, Oregon Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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Name
Median
Mean
Households$70,926$91,101
Families$84,296$104,513
Married Families$101,650$120,166
Non Families$44,184$56,994

mean

median

Income by Household Type

Marion County, Oregon Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

47.2%

Overall Marriage Rate

48.6%

Male Marriage Rate

45.8%

Female Marriage Rate

Marion County, Oregon Married by Age and Sex

male

female

Marion County, Oregon Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 35-44.

Marion County, Oregon Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Marion County, Oregon Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

18,730

Number of Veterans

17,253

Male Veterans

1,477

Female Veterans

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War
Veterans
Vietnam6,493
Second Gulf War3,701
First Gulf War3,586
Korea1,266
World War II308

Marion County, Oregon Veterans by War

count

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Age Group
Veterans
65 to 744,830
35 to 544,449
75+4,413
55 to 643,550
18 to 341,488

Marion County, Oregon Veterans by Age

count

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Name
Veterans
% of Total
White16,7278.49%
Hispanic1,2071.97%
2+ Races8833.17%
Other Race5552.44%
Black2187.18%
Native American1644.89%
Asian981.66%
Islander853.4%

Marion County, Oregon Veterans by Race

Marion County, Oregon Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

5.28%

Veteran Poverty Rate

31.75%

Veteran Disability Rate

Marion County, Oregon Veterans by Education

LaborForceParticipation

61.5%

Labor Force Participation

58%

Employment Rate

5.4%

Unemployment Rate

Marion County, Oregon Employment by Age

LaborForceParticipation

Marion County, Oregon Employment by Race

LaborForceParticipation

Marion County, Oregon Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

51.88%

Born in Marion County, Oregon

86.76%

Native Born

13.24%

Foreign Born

8.27%

Non Citizen

4.96%

Naturalized

Place of Birth

86.76% of Marion County, Oregon residents were born in the United States, with 51.88% having been born in Oregon. 8.27% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Marion County, Oregon Place of Birth

Sources