Madison County, Missouri

Madison County is a located in the  of. As of, the population is 11,800. Its is. The county was organized in and named for. Mining has been a key industry in this area with Madison County recorded as having the oldest mine west of the Mississippi River.

Geography
According to the, the county has a total area of 1,289 (498 ). 1,287 km² (497 sq mi) of it is land and 2 km² (1 sq mi) of it (0.17%) is water.

Adjacent counties

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Demographics
As of the of 2000, there were 11,800 people, 4,711 households, and 3,330 families residing in the county. The was 9/km² (24/sq mi). There were 5,656 housing units at an average density of 4/km² (11/sq mi). The racial makeup of the county was 98.30%, 0.13% or , 0.25% , 0.29% , 0.20% from , and 0.83% from two or more races. 0.56% of the population were or  of any race.

There were 4,711 households out of which 31.20% had children under the age of 18 living with them, 57.40% were living together, 10.10% had a female householder with no husband present, and 29.30% were non-families. 25.90% of all households were made up of individuals and 14.30% had someone living alone who was 65 years of age or older. The average household size was 2.46 and the average family size was 2.93.

In the county the population was spread out with 24.60% under the age of 18, 7.90% from 18 to 24, 26.30% from 25 to 44, 23.30% from 45 to 64, and 18.00% who were 65 years of age or older. The median age was 39 years. For every 100 females there were 92.10 males. For every 100 females age 18 and over, there were 87.70 males.

The median income for a household in the county was $25,601, and the median income for a family was $31,145. Males had a median income of $27,670 versus $15,909 for females. The for the county was $13,215. About 12.80% of families and 17.20% of the population were below the, including 22.60% of those under age 18 and 16.20% of those age 65 or over.