Miami County Flag

Miami County

State:
Ohio
County Seat:
Troy

Miami County's estimated 2025 population is 112,202 with a growth rate of 0.59% in the past year according to the most recent United States census data. Miami County is the 25th largest county in Ohio. The 2010 population was 102,487 and has seen a growth of 9.48% since that time.

112,202
Total Population
276
Population Density (mi²)
25
Population Rank (State)
663 0.59%
Annual Population Growth

Miami County Population

Miami County Population

Data after 2023 is projected based on recent change

020K40K60K80K100K120K18201840186018801900192019401960198020002020YearPopulation

Demographics

The racial composition of Miami County includes 91.19% White, and smaller percentages for Black or African American, Asian, other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

91.19%

White

Two or more races

Black or African American

Asian

Other race

Native American

Native Hawaiian or Pacific Islander

Race
Population
Percentage (of total)
White99,89991.19%
Two or more races4,8314.41%
Black or African American2,2612.06%
Asian1,8611.7%
Other race6220.57%
Native American670.06%
Native Hawaiian or Pacific Islander80.01%

Miami County Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Miami County's average per capita income is $49,477. Household income levels show a median of $74,175. The poverty rate stands at 8.62%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median
Mean
Married Families$104,341$123,307
Families$95,196$111,685
Households$74,175$94,300
Non Families$41,432$56,455

$49,477

Average Income

$74,175

Median Household Income

8.62%

Poverty Rate