One of the earliest mining communities in Williamson County, Crainville is named for James M. Crain, who filed the first plat for the village. It was initially known as "Crain City," but incorporated as the village of Crainville on June 28, 1881. A post office opened on September 26, 1888, also under the name Crainville. It discontinued operations on January 31, 1914, and the community is now served by the post office at neighboring Carterville.[3]
According to the 2010 census, Crainville has a total area of 1.597 square miles (4.14 km2), of which 1.59 square miles (4.12 km2) (or 99.56%) is land and 0.007 square miles (0.02 km2) (or 0.44%) is water.[5]
As of the census[7] of 2000, there were 992 people, 425 households, and 265 families residing in the village. The population density was 709.9 inhabitants per square mile (274.1/km2). There were 459 housing units at an average density of 328.5 per square mile (126.8/km2). The racial makeup of the village was 97.78% White, 0.71% African American, 0.20% Native American, 0.20% Asian, 0.20% from other races, and 0.91% from two or more races. Hispanic or Latino of any race were 0.40% of the population.
There were 425 households, out of which 31.8% had children under the age of 18 living with them, 49.6% were married couples living together, 11.5% had a female householder with no husband present, and 37.6% were non-families. 32.5% of all households were made up of individuals, and 12.9% had someone living alone who was 65 years of age or older. The average household size was 2.33 and the average family size was 3.01.
In the village, the population was spread out, with 24.2% under the age of 18, 9.3% from 18 to 24, 29.8% from 25 to 44, 23.7% from 45 to 64, and 13.0% who were 65 years of age or older. The median age was 37 years. For every 100 females, there were 82.7 males. For every 100 females age 18 and over, there were 81.6 males.
The median income for a household in the village was $35,750, and the median income for a family was $48,021. Males had a median income of $34,219 versus $20,972 for females. The per capita income for the village was $17,911. About 6.6% of families and 8.8% of the population were below the poverty line, including 7.0% of those under age 18 and 6.3% of those age 65 or over.
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