Crainville is a village located in Williamson County, in the state of Illinois (IL), United States. Nestled in the East North Central division of the Midwest region, it covers an area of 1.4 square miles (4.0 km²) and sits at an elevation of 473 ft. With a population of approximately 992 residents, Crainville offers a peaceful, rural atmosphere.
The town's population is composed of about 45.26% males and 54.74% females, and it has a population density of 708.57 people per square mile (273.58/km²). Crainville lies at a latitude of 37.75 and a longitude of -89.07, operating in the UTC-6.
Locals reflect a blend of American ancestry, with roots primarily in United States (16.1%), followed by English (16.5%), German (18%), and Scotch-Irish (4.6%) heritage. The town is identified by the ZIP code 62918.