Belleville URL: https://knowledge.ivjn.us/en/places/il-belleville.html Belleville is a city in Illinois, United States. ## Overview Belleville is a city in [Illinois](https://knowledge.ivjn.us/en/places/illinois.html), United States, with a population of about 42,034[^geonames]. ## Geography - Coordinates: 38.5200, -89.9840 Updated: 2026-10-29 Relations: - Located in: Saint Clair County https://knowledge.ivjn.us/en/places/il-saint-clair-county.html Sources: - GeoNames US dataset (US.txt / admin2Codes.txt) https://download.geonames.org/export/dump/US.zip