Preble County, Ohio

Geography

According to the U.S. Census Bureau, the county has a total area of 426 square miles (1,100 km²), of which 424 square miles (1,100 km²) is land and 2.3 square miles (6.0 km²) (0.5%) is water.

Adjacent counties

Rivers and streams

2000 census

As of the census of 2000, there were 42,337 people, 16,001 households, and 12,144 families residing in the county. The population density was 100 people per square mile (38/km²). There were 17,186 housing units at an average density of 40 per square mile (16/km²). The racial makeup of the county was 98.47% White, 0.32% Black or African American, 0.21% Native American, 0.26% Asian, 0.02% Pacific Islander, 0.11% from other races, and 0.60% from two or more races. 0.43% of the population were Hispanic or Latino of any race.

There were 16,001 households out of which 34.20% had children under the age of 18 living with them, 63.50% were married couples living together, 8.50% had a female householder with no husband present, and 24.10% were non-families. 20.60% of all households were made up of individuals and 8.90% had someone living alone who was 65 years of age or older. The average household size was 2.62 and the average family size was 3.02.

In the county, the population was spread out with 26.00% under the age of 18, 7.70% from 18 to 24, 28.70% from 25 to 44, 24.40% from 45 to 64, and 13.20% who were 65 years of age or older. The median age was 38 years. For every 100 females there were 99.30 males. For every 100 females age 18 and over, there were 95.70 males.

The median income for a household in the county was $42,093, and the median income for a family was $47,547. Males had a median income of $35,313 versus $23,573 for females. The per capita income for the county was $18,444. About 4.50% of families and 6.10% of the population were below the poverty line, including 7.00% of those under age 18 and 6.10% of those age 65 or over.

2010 census

As of the 2010 United States Census, there were 42,270 people, 16,341 households, and 11,867 families residing in the county. The population density was 99.7 inhabitants per square mile (38.5/km²). There were 17,888 housing units at an average density of 42.2 per square mile (16.3/km²). The racial makeup of the county was 97.6% white, 0.4% black or African American, 0.4% Asian, 0.2% American Indian, 0.2% from other races, and 1.2% from two or more races. Those of Hispanic or Latino origin made up 0.6% of the population. In terms of ancestry, 34.3% were German, 14.6% were Irish, 12.7% were American, and 11.5% were English.

Of the 16,341 households, 32.7% had children under the age of 18 living with them, 57.5% were married couples living together, 10.1% had a female householder with no husband present, 27.4% were non-families, and 23.2% of all households were made up of individuals. The average household size was 2.56 and the average family size was 2.99. The median age was 40.9 years.

The median income for a household in the county was $49,780 and the median income for a family was $57,711. Males had a median income of $46,383 versus $30,876 for females. The per capita income for the county was $23,290. About 6.3% of families and 9.4% of the population were below the poverty line, including 13.1% of those under age 18 and 6.8% of those age 65 or over.

Public school districts

Higher education

City

Census-designated place

Notable residents

Sherwood Anderson - writer