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

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

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

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