Marion County, Ohio Population 2021

Marion County, Ohio's estimated population is 64,425 with a growth rate of -0.52% in the past year according to the most recent United States census data. Marion County, Ohio is the 40th largest county in Ohio. The 2010 Population was 66,458 and has seen a growth of -3.06% since this time.

Note: 2020 and 2021 data is projected
Year Population Growth Growth Rate
202164,425-334-0.52%
202064,759-334-0.51%
201965,093-334-0.51%
201865,4273510.54%
201765,076-391-0.60%
201665,467360.06%
201565,431-360-0.55%
201465,791-173-0.26%
201365,964-313-0.47%
201266,277-322-0.48%
201166,5991410.21%
201066,4582,1843.40%
199064,274-3,700-5.44%
198067,9743,2505.02%
197064,7244,5037.48%
196060,22110,26220.54%
195049,9595,06111.27%
194044,898-522-1.15%
193045,4203,4168.13%
192042,0048,03323.65%
191033,9715,29318.46%
190028,6783,95115.98%
189024,7274,16220.24%
188020,5654,38127.07%
187016,1846944.48%
186015,4902,87222.76%
185012,618-2,147-14.54%
184014,7658,214125.39%
18306,5510.00%
2021 Growth Rate
-0.52%
County Website
State
Founded
May 1, 1824
County Seat
2010 Population
66,458
Growth Since 2010
-3.06%
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Marion County, Ohio Population Growth

Population by Race

Race Population Percentage
White58,50589.60%
Black or African American3,7145.69%
Two or More Races2,0723.17%
Asian4200.64%
Some Other Race3960.61%
American Indian and Alaska Native1660.25%
Native Hawaiian and Other Pacific Islander260.04%
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Marion County, Ohio Population by Race

Marion County, Ohio Population Pyramid $2021

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Marion County, Ohio Median Age

41.3


Total

39.5


Male

43.2


Female

Marion County, Ohio Adults

There are 51,552 adults, (11,266 of whom are seniors) in Marion County, Ohio.

Marion County, Ohio Age Dependency

62.1

Age Dependency Ratio

28

Old Age Dependency Ratio

34.1

Child Dependency Ratio

Marion County, Ohio Sex Ratio

Female

30,656

46.95%

Male

34,643

53.05%

Marion County, Ohio Population by Age

Marion County, Ohio Renter vs Owner Occupied by Household Type

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Marion County, Ohio Household Types

Type Owner Renter
Married81%19%
All66.4%33.6%
Male59.3%40.7%
Non Family53.8%46.2%
Female51%49%

66.4%

Rate of Home Ownership

Marion County, Ohio Households and Families

Type Count Average Size Owned
All24,7372.4166.4
Married11,5343.0181
Non Family8,8931.2153.8
Female3,1923.3951
Male1,1182.9459.3

2.98

Average Family Size

2.41

Average Household Size

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Marion County, Ohio Households by Type

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Education Attained Count Percentage
Less Than 9th Grade1,2562.71%
9th to 12th Grade4,3469.38%
High School Graduate20,60144.49%
Some College10,77023.26%
Associates Degree3,5287.62%
Bachelors Degree3,5987.77%
Graduate Degree2,2094.77%
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Marion County, Ohio Educational Attainment by Sex (over 25)

Marion County, Ohio Educational Attainment by Race

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Race Total High School Bachelors
White41,37536,8875,393
Black2,9532,302204
Hispanic91168252
2+ Races83062260
Asian29026984
Other Race18813512
Native American141812
Islander262612

The highest rate of high school graduation is among islander people with a rate of 100.00%.

The highest rate of bachelors degrees is among islander people with a rate of 46.15%.

Marion County, Ohio Educational Attainment by Race

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Name Average Male Female
Overall$34,297$39,478$28,588
Less Than 9th Grade$19,417$20,697$17,723
High School Graduate$30,608$36,987$24,211
Some College$36,932$44,236$29,864
Bachelors Degree$46,856$54,901$40,380
Graduate Degree$56,458$54,646$56,719

$34,297

Average Earnings

$39,478

Average Male

$28,588

Average Female

Marion County, Ohio Earnings by Educational Attainment

Marion County, Ohio Language by Age

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Marion County, Ohio Language

95.15% of Marion County, Ohio residents speak only English, while 4.85% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 2.37% of the population.

Marion County, Ohio Language

Marion County, Ohio Poverty by Race

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Name Total In Poverty Poverty Rate
White54,3567,43713.68%
Multiple1,77352529.61%
Black1,82246825.69%
Hispanic1,31144233.71%
Asian4206315.00%
Other3145417.20%
Native783544.87%

14.81%

Overall Poverty Rate

13.31%

Male Poverty Rate

16.26%

Female Poverty Rate

Poverty in Marion County, Ohio

The race most likely to be in poverty in Marion County, Ohio is Native, with 44.87% below the poverty level.

The race least likely to be in poverty in Marion County, Ohio is White, with 13.68% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.81%. Among those working part-time, it was 18.71%, and for those that did not work, the poverty rate was 20.60%.

Marion County, Ohio Poverty

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Name Poverty
Less Than 9th Grade25.29%
High School12.86%
Some College9.28%
Bachelors or Greater3.20%

Marion County, Ohio Poverty Rate by Education

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Rate Poverty
Female Unemployed37.80%
Male Unemployed31.27%
Female Employed9.97%
Male Employed5.16%

Marion County, Ohio Poverty Rate by Employment Status and Sex

Marion County, Ohio Income by Household Type

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Name Median Mean
Households$47,498$63,207
Families$59,647$76,937
Married Families$68,895$86,501
Non Families$27,061$35,704
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Income by Household Type

Marion County, Ohio Marital Status

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Marriage Rates

46.0%

Overall Marriage Rate

44.3%

Male Marriage Rate

48.1%

Female Marriage Rate

Marion County, Ohio Married by Age and Sex

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Marion County, Ohio 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 55-64.

Marion County, Ohio Marital Status by Race

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Marion County, Ohio Marital Status

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4,819

Number of Veterans

4,438

Male Veterans

381

Female Veterans

War Veterans
Vietnam1,710
First Gulf War920
Second Gulf War576
Korea406
World War II202

Marion County, Ohio Veterans by War

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Age Group Veterans
65 to 741,263
35 to 541,247
55 to 641,022
75+1,017
18 to 34270

Marion County, Ohio Veterans by Age

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Name Veterans % of Total
White4,6269.96%
Black942.83%
2+ Races757.20%
Hispanic383.65%
Other Race156.58%
Asian82.44%
Native American10.68%

Marion County, Ohio Veterans by Race

Marion County, Ohio Veterans by Education

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7.94%

Veteran Poverty Rate

31.26%

Veteran Disability Rate

Marion County, Ohio Veterans by Education

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54%

Labor Force Participation

50.3%

Employment Rate

6.6%

Unemployment Rate

Marion County, Ohio Employment by Age

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Marion County, Ohio Employment by Race

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Marion County, Ohio Employment by Education

Origin of Non-Citizens

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

Origin of Naturalized Citizens

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82.50%

Born in Marion County, Ohio

98.27%

Native Born

1.73%

Foreign Born

0.93%

Non Citizen

0.80%

Naturalized

Place of Birth

98.27% of Marion County, Ohio residents were born in the United States, with 82.50% having been born in Ohio. 0.93% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Marion County, Ohio Place of Birth

  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990

Sources