|Greene County, Illinois|
Location in the U.S. state of Illinois
Illinois's location in the U.S.
|Named for||Nathanael Greene|
|Largest city||White Hall|
|o Total||546 sq mi (1,414 km2)|
|o Land||543 sq mi (1,406 km2)|
|o Water||3.3 sq mi (9 km2), 0.6%|
|o Density||26/sq mi (10/km2)|
A notable archaeological area, the Koster Site, has produced evidence of more than 7,000 years of human habitation. Artifacts from the site are displayed at the Center for American Archeology in Kampsville, Illinois.
Greene County from its creation in 1821 to 1823, including unorganized territory temporarily attached to it.
|Climate chart (explanation)|
In recent years, average temperatures in the county seat of Carrollton have ranged from a low of 16 °F (-9 °C) in January to a high of 87 °F (31 °C) in July, although a record low of -26 °F (-32 °C) was recorded in January 1912 and a record high of 113 °F (45 °C) was recorded in July 1934. Average monthly precipitation ranged from 1.60 inches (41 mm) in January to 4.34 inches (110 mm) in May.
As of the 2010 United States Census, there were 13,886 people, 5,570 households, and 3,777 families residing in the county. The population density was 25.6 inhabitants per square mile (9.9/km2). There were 6,389 housing units at an average density of 11.8 per square mile (4.6/km2). The racial makeup of the county was 97.9% white, 0.9% black or African American, 0.2% American Indian, 0.1% Asian, 0.3% from other races, and 0.7% from two or more races. Those of Hispanic or Latino origin made up 0.8% of the population. In terms of ancestry, 30.7% were German, 14.7% were Irish, 13.3% were English, and 12.1% were American.
Of the 5,570 households, 30.9% had children under the age of 18 living with them, 53.0% were married couples living together, 9.4% had a female householder with no husband present, 32.2% were non-families, and 27.8% of all households were made up of individuals. The average household size was 2.44 and the average family size was 2.95. The median age was 41.6 years.
The median income for a household in the county was $41,450 and the median income for a family was $52,049. Males had a median income of $38,185 versus $27,231 for females. The per capita income for the county was $22,107. About 11.8% of families and 15.1% of the population were below the poverty line, including 22.1% of those under age 18 and 10.0% of those age 65 or over.
Greene County was reliably Democratic from the beginning through 1948; only one Republican Party nominee carried the county vote during that period. Since then it has usually voted for the Republican nominee (13 of 17 elections).
As one of the most northerly "southern" counties in Illinois, Greene County was rock-ribbed Democratic for the seventy years after the Civil War, which it opposed as a "Yankee" war. Not until considerable anti-Catholic sentiment against Al Smith turned many voters to Herbert Hoover did the county support a Republican presidential nominee. However, with the coming of World War II, opposition to American involvement led to gains for Wendell Willkie and Thomas E. Dewey, although apart from the 1960 election - also influenced by Catholicism - Greene was a bellwether county throughout the period from 1928 to 2004.
In recent years, like most of downstate Illinois, opposition to the Democratic Party's liberal views on social issues, along with economic problems, has caused very rapid swings toward the Republican Party. Hillary Clinton's 2016 tally of 21.6 percent of the county's vote is fifteen percent worse than any Democrat before 2010.