Montgomery County, Ohio

Montgomery County is a of Ohio in the United States. As of the, 535,153 people lived there. making it the fifth-most populous county in Ohio. The is Dayton, The county was  in honor of , an  general killed in 1775 while attempting to capture ,.

Geography
According to the, the county has a total area of 464 sqmi, of which 462 sqmi is land and 2.8 sqmi (0.6%) is water.

Adjacent counties
Montgomery County is part of the Dayton, Ohio.
 * Miami County (north)
 * Clark County (northeast)
 * Greene County (east)
 * Warren County (south)
 * Butler County (southwest)
 * Preble County (west)
 * Darke County (northwest)

2000 census
As of the of 2000, there were 559,062 people, 229,229 households, and 146,935 families residing in the county. The was 1,211 people per square mile (468/km²). There were 248,443 housing units at an average density of 538 per square mile (208/km²). The racial makeup of the county was 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 were Hispanic or Latino of any race.

There were 229,229 households out of which 29.60% had children under the age of 18 living with them, 46.30% were living together, 13.80% had a female householder with no husband present, and 35.90% were non-families. 30.40% of all households were made up of individuals and 10.10% had someone living alone who was 65 years of age or older. The average household size was 2.37 and the average family size was 2.96.

In the county, the population was 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 were 65 years of age or older. The median age was 36 years. For every 100 females there were 92.30 males. For every 100 females age 18 and over, there were 88.60 males.

The median income for a household in the county was $40,156, and the median income for a family was $50,071. Males had a median income of $38,710 versus $27,297 for females. The for the county was $21,743. About 8.30% of families and 11.30% of the population were below the, including 15.60% of those under age 18 and 8.20% of those age 65 or over.

2010 census
As of the, there were 535,153 people, 223,943 households, and 138,060 families residing in the county. The was 1,159.5 inhabitants per square mile (447.7/km2). There were 254,775 housing units at an average density of 552.0 per square mile (213.1/km2). The racial makeup of the county was 73.9% white, 20.9% black or African American, 1.7% Asian, 0.2% American Indian, 0.8% from other races, and 2.4% from two or more races. Those of Hispanic or Latino origin made up 2.3% of the population. In terms of ancestry, 24.9% were, 12.8% were , 9.7% were , and 8.8% were.

Of the 223,943 households, 29.7% had children under the age of 18 living with them, 41.6% were living together, 15.3% had a female householder with no husband present, 38.4% were non-families, and 32.2% of all households were made up of individuals. The average household size was 2.33 and the average family size was 2.94. The median age was 39.2 years.

The median income for a household in the county was $43,965 and the median income for a family was $56,559. Males had a median income of $45,680 versus $34,991 for females. The for the county was $24,828. About 11.7% of families and 15.7% of the population were below the, including 22.7% of those under age 18 and 8.7% of those age 65 or over.

Cities

 * Brookville
 * Centerville
 * Clayton
 * Dayton (county seat)
 * Englewood
 * Germantown
 * Huber Heights
 * Kettering
 * Miamisburg
 * Moraine
 * Oakwood
 * Riverside
 * Springboro
 * Trotwood
 * Union
 * Vandalia
 * West Carrollton

Villages

 * Carlisle
 * Farmersville
 * New Lebanon
 * Phillipsburg
 * Verona

Townships

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

Defunct townships

 * Dayton Township
 * Mad River Township (remnant merged with the Village of Riverside in 1994)
 * Madison Township (remnant merged with the Village of Trotwood in 1996)
 * Randolph Township (remnant merged with the Village of Clayton in 1998)
 * Van Buren Township (partitioned between the municipalities of Kettering and Moraine in 1952-1953)
 * Wayne Township (incorporated as Huber Heights in 1981)

Census-designated place

 * Drexel

Other unincorporated communities

 * Airhill
 * Amity
 * Arlington
 * Bachman
 * Chautauqua
 * Dodson
 * Fort McKinley
 * Harries
 * Kinsey
 * Liberty
 * Little York
 * Miami Villa
 * Morgan Place
 * Northridge
 * Pyrmont
 * Shiloh
 * Spanker
 * Taylorsburg
 * Woodbourne-Hyde Park