Belleville is in the St. Louis metro area, 14 miles from downtown St. Louis, in the southern part of Illinois. The Illinois state capital, Springfield, is 90 miles to the north of Belleville. Beyond St. Louis, the next major market is Indianapolis at 222 miles to the northeast. Belleville is a smaller community than nearby St Louis, which means lower competitive density on local search queries.
Belleville has a population of 42,895, ranking 36th of 52 covered Illinois cities and accounting for about 0.7% of their total population. Belleville is in the southern part of Illinois (the Great Lakes region). Businesses in Belleville compete for both Belleville-specific searches — where Belleville proximity and a complete local profile give them a direct advantage — and for the broader St. Louis-area queries where a strong Belleville presence can still convert metro-area customers. Belleville is located in Saint Clair County, Illinois.
Nearby covered cities include St. Louis (318,416), Florissant (52,363), St. Charles (67,569) — some of which are larger than Belleville's 42,895 residents, meaning lower competitive density for Belleville-specific queries. The St. Louis–Indianapolis corridor (14 mi to 222 mi from Belleville) represents the competitive metro backdrop that shapes what Belleville businesses need to rank for.
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