Macomb is a city located in Mcdonough 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 9.9 square miles (26.0 km²) and sits at an elevation of 705 ft. With a population of approximately 18,558 residents, Macomb offers a vibrant community life.
The town's population is composed of about 48.53% males and 51.47% females, and it has a population density of 884.06 people per square mile (727.44/km²). Macomb lies at a latitude of 40.46 and a longitude of -90.67, operating in the UTC-6.
Locals reflect a blend of American ancestry, with roots primarily in United States (6.5%), followed by English (11.6%), German (26.4%), and Scotch-Irish (0%) heritage. The town is identified by the ZIP code 61455.