Pinckneyville is a city located in Perry 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 3.2 square miles (8.0 km²) and sits at an elevation of 439 ft. With a population of approximately 5,464 residents, Pinckneyville offers a peaceful, rural atmosphere.
The town's population is composed of about 65.32% males and 34.68% females, and it has a population density of 729.11 people per square mile (667.61/km²). Pinckneyville lies at a latitude of 38.08 and a longitude of -89.38, operating in the UTC-6.
Locals reflect a blend of American ancestry, with roots primarily in United States (10.7%), followed by English (4.2%), German (14%), and Scotch-Irish (0%) heritage. The town is identified by the ZIP code 62274.