Miami County, Ohio Population 2021

Miami County, Ohio's estimated population is 108,877 with a growth rate of 0.88% in the past year according to the most recent United States census data. Miami County, Ohio is the 26th largest county in Ohio. The 2010 Population was 102,487 and has seen a growth of 6.23% since this time.

Note: 2020 and 2021 data is projected
Year Population Growth Growth Rate
2021108,8779450.88%
2020107,9329450.88%
2019106,9879450.89%
2018106,0428420.80%
2017105,2006470.62%
2016104,5534780.46%
2015104,0752190.21%
2014103,8566430.62%
2013103,2132790.27%
2012102,9342000.19%
2011102,7342470.24%
2010102,4879,3059.99%
199093,1822,8013.10%
198090,3816,0397.16%
197084,34211,44115.69%
196072,90111,59218.91%
195061,3098,67716.49%
194052,6321,3312.59%
193051,3012,8735.93%
192048,4283,3817.51%
191045,0471,9424.51%
190043,1053,3518.43%
189039,7543,5969.95%
188036,1583,41810.44%
187032,7402,7819.28%
186029,9594,96019.84%
185024,9995,31126.98%
184019,6886,88153.73%
183012,8073,95644.70%
18208,8514,910124.59%
18103,9410.00%
2021 Growth Rate
0.88%
County Website
State
Founded
March 1, 1807
County Seat
2010 Population
102,487
Growth Since 2010
6.23%
map placeholder

Miami County, Ohio Population Growth

Population by Race

Race Population Percentage
White98,71793.69%
Two or More Races2,8012.66%
Black or African American2,1302.02%
Asian1,3171.25%
Some Other Race2530.24%
American Indian and Alaska Native1470.14%
Native Hawaiian and Other Pacific Islander60.01%
Loading...

Miami County, Ohio Population by Race

Miami County, Ohio Population Pyramid $2021

Loading...

Miami County, Ohio Median Age

41.3


Total

40.2


Male

42.9


Female

Miami County, Ohio Adults

There are 80,975 adults, (19,352 of whom are seniors) in Miami County, Ohio.

Miami County, Ohio Age Dependency

71

Age Dependency Ratio

31.4

Old Age Dependency Ratio

39.6

Child Dependency Ratio

Miami County, Ohio Sex Ratio

Female

53,265

50.55%

Male

52,106

49.45%

Miami County, Ohio Population by Age

Miami County, Ohio Renter vs Owner Occupied by Household Type

Loading...

Miami County, Ohio Household Types

Type Owner Renter
Married87.6%12.4%
All71.1%28.9%
Non Family54.2%45.8%
Female51%49%
Male47.4%52.6%

71.1%

Rate of Home Ownership

Miami County, Ohio Households and Families

Type Count Average Size Owned
All41,0432.5471.1
Married21,3943.1687.6
Non Family14,4711.2654.2
Female3,3983.6351
Male1,7803.5847.4

3.17

Average Family Size

2.54

Average Household Size

Loading...

Miami County, Ohio Households by Type

Loading...
Education Attained Count Percentage
Less Than 9th Grade1,4782.02%
9th to 12th Grade4,9716.80%
High School Graduate26,73536.59%
Some College15,89721.76%
Associates Degree6,9629.53%
Bachelors Degree10,53414.42%
Graduate Degree6,4838.87%
Loading...

Miami County, Ohio Educational Attainment by Sex (over 25)

Miami County, Ohio Educational Attainment by Race

Loading...
Race Total High School Bachelors
White68,84763,05816,047
Black1,4051,174166
Asian1,0691,021444
Hispanic955732187
2+ Races711609154
Other Race18213528
Native American1479119
Islander66

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 asian people with a rate of 41.53%.

Miami County, Ohio Educational Attainment by Race

Loading...
Name Average Male Female
Overall$39,870$48,359$30,689
Less Than 9th Grade$24,114$35,667$19,028
High School Graduate$31,730$41,981$22,142
Some College$37,498$47,679$30,220
Bachelors Degree$56,447$71,947$42,987
Graduate Degree$71,130$86,897$62,100

$39,870

Average Earnings

$48,359

Average Male

$30,689

Average Female

Miami County, Ohio Earnings by Educational Attainment

Miami County, Ohio Language by Age

Loading...

Miami County, Ohio Language

97.23% of Miami County, Ohio residents speak only English, while 2.77% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 0.91% of the population.

Miami County, Ohio Language

Miami County, Ohio Poverty by Race

Loading...
Name Total In Poverty Poverty Rate
White96,1018,2338.57%
Multiple2,78949517.75%
Black1,97042621.62%
Hispanic1,76132918.68%
Asian1,317423.19%
Other2533413.44%
Native1473322.45%
Islander66100.00%

9.15%

Overall Poverty Rate

7.91%

Male Poverty Rate

10.36%

Female Poverty Rate

Poverty in Miami County, Ohio

The race most likely to be in poverty in Miami County, Ohio is Islander, with 100.00% below the poverty level.

The race least likely to be in poverty in Miami County, Ohio is Asian, with 3.19% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.83%. Among those working part-time, it was 13.40%, and for those that did not work, the poverty rate was 14.00%.

Miami County, Ohio Poverty

Loading...
Name Poverty
Less Than 9th Grade20.95%
High School8.21%
Some College7.58%
Bachelors or Greater1.97%

Miami County, Ohio Poverty Rate by Education

Loading...
Rate Poverty
Female Unemployed28.10%
Male Unemployed21.37%
Female Employed6.02%
Male Employed3.93%

Miami County, Ohio Poverty Rate by Employment Status and Sex

Miami County, Ohio Income by Household Type

Loading...
Name Median Mean
Households$61,041$77,607
Families$78,033$92,776
Married Families$88,277$102,587
Non Families$33,582$47,537
Loading...

Income by Household Type

Miami County, Ohio Marital Status

Loading...

Marriage Rates

52.7%

Overall Marriage Rate

54.0%

Male Marriage Rate

51.5%

Female Marriage Rate

Miami County, Ohio Married by Age and Sex

Loading...

Miami 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 35-44.

Miami County, Ohio Marital Status by Race

Loading...

Miami County, Ohio Marital Status

Loading...

7,719

Number of Veterans

7,149

Male Veterans

570

Female Veterans

War Veterans
Vietnam2,600
First Gulf War1,637
Second Gulf War1,172
Korea433
World War II425

Miami County, Ohio Veterans by War

Loading...
Age Group Veterans
65 to 742,135
35 to 541,907
75+1,725
55 to 641,431
18 to 34521

Miami County, Ohio Veterans by Age

Loading...
Name Veterans % of Total
White7,4609.77%
Black20112.63%
Hispanic908.70%
Asian423.79%
2+ Races161.21%

Miami County, Ohio Veterans by Race

Miami County, Ohio Veterans by Education

Loading...

4.53%

Veteran Poverty Rate

25.90%

Veteran Disability Rate

Miami County, Ohio Veterans by Education

Loading...

63.9%

Labor Force Participation

60.6%

Employment Rate

4.9%

Unemployment Rate

Miami County, Ohio Employment by Age

Loading...

Miami County, Ohio Employment by Race

Loading...

Miami County, Ohio Employment by Education

Origin of Non-Citizens

Loading...

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

Origin of Naturalized Citizens

Loading...

78.35%

Born in Miami County, Ohio

98.09%

Native Born

1.91%

Foreign Born

0.87%

Non Citizen

1.04%

Naturalized

Place of Birth

98.09% of Miami County, Ohio residents were born in the United States, with 78.35% having been born in Ohio. 0.87% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Miami 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