Belleville, Illinois, maintains a stable population with minor fluctuations. The 2022 population was 62,307 with a density of 2,681 people per square mile, categorizing it as a suburban city. This density indicates a developed urban environment balancing residential, commercial, and public spaces.

The city's infrastructure is likely well-developed, offering various housing options including single-family homes, townhouses, and possibly low-rise apartment buildings. Residents likely have access to comprehensive public services, including schools, healthcare facilities, and public transportation systems.

The suburban nature of Belleville suggests residents have access to urban amenities and spacious living. The city likely features shopping centers, community facilities, and local parks, contributing to a suburban lifestyle. This environment typically appeals to families and individuals valuing urban convenience with community atmosphere.