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3 Cities and towns
Geography\nAccording to the U.S. Census Bureau, the county has a total area of 1,074 km² (415 mi²). 1,067 km² (412 mi²) of it is land and 7 km² (3 mi²) of it is water. The total area is 0.66% water.
Demographics\nAs of the census2 of 2000, there are 46,486 people, 18,413 households, and 12,907 families residing in the county. The population density is 44/km² (113/mi²). There are 20,745 housing units at an average density of 19/km² (50/mi²). The racial makeup of the county is 98.53% White, 0.49% Black or African American, 0.08% Native American, 0.29% Asian, 0.00% Pacific Islander, 0.18% from other races, and 0.43% from two or more races. 0.57% of the population are Hispanic or Latino of any race.
There are 18,413 households out of which 30.20% have children under the age of 18 living with them, 57.60% are married couples living together, 8.50% have a female householder with no husband present, and 29.90% are non-families. 26.00% of all households are made up of individuals and 13.20% have someone living alone who is 65 years of age or older. The average household size is 2.49 and the average family size is 2.99.
In the county, the population is spread out with 24.60% under the age of 18, 7.00% from 18 to 24, 27.40% from 25 to 44, 23.90% from 45 to 64, and 17.00% who are 65 years of age or older. The median age is 39 years. For every 100 females there are 93.20 males. For every 100 females age 18 and over, there are 89.90 males.
Cities and towns\n*Armagh Township\n*Belleville\n*Bratton Township\n*Brown Township\n*Burnham\n*Decatur Township\n*Derry Township\n*Granville Township\n*Highland Park\n*Juniata Terrace\n*Kistler\n*Lewistown\n*McVeytown\n*Menno Township\n*Milroy\n*Newton Hamilton\n*Oliver Township\n*Reedsville\n*Union Township\n*Wayne Township\n*Yeagertown