Montgomery County is a county located in the U.S. State of Ohio. As of 2000, the population is 559,062. It was named in honor of Richard Montgomery, an American Revolutionary War general killed in 1775 while attempting to capture Quebec City, Canada. Its county seat is Dayton6.
According to the U.S. Census Bureau, the county has a total area of 1,203 km² (464 mi²). 1,196 km² (462 mi²) of it is land and 7 km² (3 mi²) of it is water. The total area is 0.58% water.
As of the census2 of 2000, there are 559,062 people, 229,229 households, and 146,935 families residing in the county. The population density is 468/km² (1,211/mi²). There are 248,443 housing units at an average density of 208/km² (538/mi²). The racial makeup of the county is 76.57% White, 19.86% Black or African American, 0.23% Native American, 1.31% Asian, 0.04% Pacific Islander, 0.49% from other races, and 1.51% from two or more races. 1.27% of the population are Hispanic or Latino of any race.
There are 229,229 households out of which 29.60% have children under the age of 18 living with them, 46.30% are married couples living together, 13.80% have a female householder with no husband present, and 35.90% are non-families. 30.40% of all households are made up of individuals and 10.10% have someone living alone who is 65 years of age or older. The average household size is 2.37 and the average family size is 2.96.
In the county, the population is spread out with 24.70% under the age of 18, 9.70% from 18 to 24, 29.00% from 25 to 44, 22.90% from 45 to 64, and 13.70% who are 65 years of age or older. The median age is 36 years. For every 100 females there are 92.30 males. For every 100 females age 18 and over, there are 88.60 males.
The median income for a household in the county is $40,156, and the median income for a family is $50,071. Males have a median income of $38,710 versus $27,297 for females. The per capita income for the county is $21,743. 11.30% of the population and 8.30% of families are below the poverty line. Out of the total people living in poverty, 15.60% are under the age of 18 and 8.20% are 65 or older.