Geography

Warren County - north
Fulton County - east
Schuyler County - south
Hancock County - west
Henderson County - northwest Adjacent Counties
McDonough County is named in honor of Thomas Macdonough who defeated a British squadron in the decisive naval Battle of Lake Champlain in the War of 1812. McDonough County was part of the "Military Tract" set aside by Congress for veterans of the War of 1812.

History
As of the census² of 2000, there were 32,913 people, 12,360 households, and 7,094 families residing in the county. The population density was 22/km² (56/mi²). There were 13,289 housing units at an average density of 9/km² (23/mi²). The racial makeup of the county was 92.88% White, 3.46% Black or African American, 0.14% Native American, 2.02% Asian, 0.04% Pacific Islander, 0.47% from other races, and 1.00% from two or more races. 1.48% of the population were Hispanic or Latino of any race.
There were 12,360 households out of which 24.30% had children under the age of 18 living with them, 47.10% were married couples living together, 7.50% had a female householder with no husband present, and 42.60% were non-families. 31.80% of all households were made up of individuals and 12.10% had someone living alone who was 65 years of age or older. The average household size was 2.28 and the average family size was 2.87.
In the county the population was spread out with 17.70% under the age of 18, 27.60% from 18 to 24, 21.50% from 25 to 44, 19.10% from 45 to 64, and 14.10% who were 65 years of age or older. The median age was 29 years. For every 100 females there were 95.30 males. For every 100 females age 18 and over, there were 93.80 males.
The median income for a household in the county was $32,141, and the median income for a family was $43,385. Males had a median income of $29,326 versus $20,798 for females. The per capita income for the county was $15,890. About 9.60% of families and 19.80% of the population were below the poverty line, including 19.60% of those under age 18 and 7.20% of those age 65 or over.

Cities and towns

Adair
Fandon