Montgomery County Flag

Montgomery County

State:
Ohio
County Seat:
Dayton

Montgomery County's estimated 2025 population is 534,440 with a growth rate of 0.06% in the past year according to the most recent United States census data. Montgomery County is the 5th largest county in Ohio. The 2010 population was 535,620 and has seen a growth of -0.22% since that time.

534,440
Total Population
1,159
Population Density (mi²)
5
Population Rank (State)
322 0.06%
Annual Population Growth

Montgomery County Population

Montgomery County Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Montgomery County includes 69.2% White, 20.48% Black or African American, and smaller percentages for Asian, other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Black or African American

Two or more races

Asian

Other race

Native American

Native Hawaiian or Pacific Islander

Race
Population
Percentage (of total)
White370,56569.2%
Black or African American109,69720.48%
Two or more races34,3416.41%
Asian11,6002.17%
Other race8,3501.56%
Native American8780.16%
Native Hawaiian or Pacific Islander970.02%

Montgomery County Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Montgomery County's average per capita income is $46,872. Household income levels show a median of $64,403. The poverty rate stands at 14.9%.

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$107,857$130,170
Families$84,813$107,093
Households$64,403$86,066
Non Families$41,428$54,194

$46,872

Average Income

$64,403

Median Household Income

14.9%

Poverty Rate