Lewistown is a city located in Fulton 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 1.8 square miles (5.0 km²) and sits at an elevation of 590 ft. With a population of approximately 2,522 residents, Lewistown offers a peaceful, rural atmosphere.
The town's population is composed of about 46.95% males and 53.05% females, and it has a population density of 370.65 people per square mile (529.21/km²). Lewistown lies at a latitude of 40.4 and a longitude of -90.15, operating in the UTC-6.
Locals reflect a blend of American ancestry, with roots primarily in United States (14.7%), followed by English (10.3%), German (14.6%), and Scotch-Irish (0%) heritage. The town is identified by the ZIP code 61542.