What is the capital city of Illinois?

Springfield is the capital city of Illinois due to its historical significance and central location within the state. It was designated as the state capital in 1837, and the decision was influenced by its strategic position, along with the need for a more centrally located governing body as the state continued to grow.

Springfield is not only the political heart of Illinois but also rich in history, notably as the home of Abraham Lincoln, which adds to its importance. The state government offices, including the Illinois State Capitol building, are located in Springfield, reflecting its role as the center of legislative activity in Illinois.

In contrast, while Chicago is the largest city and a major economic hub, it is not the state capital. Cities like Peoria and Rockford, although significant in their own right, do not serve the role of the capital city.