Montgomery County (Ohio)

Montgomery County is a county located in the U.S. state of Ohio of the United States. The administrative headquarters ( County Seat) is Dayton.


The County is located in southwestern Ohio, is located in the west about 40 km from the border with Indiana and has an area of ​​1203 square kilometers, of which seven square kilometers of water surface. It is bordered clockwise to the following counties: Miami County, Clark County, Greene County, Warren County, Butler County, Preble County and Darke County.


Montgomery County was formed on March 24, 1803 from parts of Hamilton County and Wayne County. It was named after Richard Montgomery, a major general of the Continental Army in the American Revolutionary War.

Demographic data

1900-1990 2000

According to the census in 2000, lived in Montgomery County 559 062 people in 229 229 households and 146 935 families. The population density was 468 people per square kilometer. The racial the population was made ​​up of 76.57 percent White, 19.86 percent Black or African American, 0.23 percent Native American, 1.31 percent Asian, 0.04 percent of residents from the Pacific Islander and 0.49 percent from other races groups; 1.51 percent were descended from two or more races. 1.27 percent of the population were Hispanic or Latino of any race.

Of the 229 229 households out of which 29.6 percent have children under the age of 18 living with them. 46.3 percent were married couples living together, 13.8 percent were single mothers, 35.9 percent were non-families, 30.4 percent of all households and 10.1 percent lived in people aged 65 years or older. The average household size was 2.37 and the average family size was 2.96.

Based on the county the population was spread from 24.7 percent population under 18 years, 9.7 percent between 18 and 24 years, 29.0 percent between 25 and 44 years, 22.9 percent between 45 and 64 years and 13.7 percent were 65 years old or older. The average age was 36 years. For every 100 females there were 92.3 males. For every 100 females age 18 and over, there were 88.6 men statistically.

The median income for a household was $ 40,156, and the median income for a family was $ 50,071. Males have a median income of $ 38,710, women $ 27,297. The per capita income was $ 21,743. 8.3 percent of families and 11.3 percent of the population lived below the poverty line. Of these, 15.6 percent were children or adolescents under 18 years old and 8.2 percent are 65 years old.


  • Butler Township
  • Clay Township
  • German Township
  • Harrison Township
  • Jackson Township
  • Jefferson Township
  • Miami Township
  • Perry Township
  • Washington Township