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Marion County, Illinois

Marion County is a county located in the U.S. State of Illinois. As of 2000, the population is 41,691. Its county seat is Salem, Illinois6.

Geography According to the U.S. Census Bureau, the county has a total area of 1,491 km² (576 mi²). 1,482 km² (572 mi²) of it is land and 9 km² (3 mi²) of it is water. The total area is 0.60% water.

Demographics As of the census of 2000, there are 41,691 people, 16,619 households, and 11,483 families residing in the county. The population density is 28/km² (73/mi²). There are 18,022 housing units at an average density of 12/km² (32/mi²). The racial makeup of the county is 94.05% White, 3.83% African American, 0.22% Native American, 0.57% Asian, 0.04% Pacific Islander, 0.22% from other races, and 1.07% from two or more races. 0.91% of the population are Hispanic or Latino of any race.

There are 16,619 households out of which 31.40% have children under the age of 18 living with them, 53.30% are married couples living together, 11.60% have a female householder with no husband present, and 30.90% are non-families. 27.20% of all households are made up of individuals and 13.50% have someone living alone who is 65 years of age or older. The average household size is 2.45 and the average family size is 2.97.

In the county the population is spread out with 25.50% under the age of 18, 8.10% from 18 to 24, 26.60% from 25 to 44, 23.30% from 45 to 64, and 16.60% who are 65 years of age or older. The median age is 38 years. For every 100 females there are 93.00 males. For every 100 females age 18 and over, there are 88.50 males.

The median income for a household in the county is $35,227, and the median income for a family is $41,427. Males have a median income of $31,459 versus $21,967 for females. The per capita income for the county is $17,235. 11.30% of the population and 8.60% of families are below the poverty line. Out of the total people living in poverty, 16.70% are under the age of 18 and 8.60% are 65 or older.

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