Belleville is a comfortable, affordable St. Louis suburb of about 42,000 people located roughly 15–16 miles east of downtown St. Louis, with a walkable historic downtown, parks and local restaurants that make multi-week stays pleasant while still offering quick access to urban amenities.Wikipedia lists the city population and basic profile while Britannica notes its proximity to St. Louis.
You’re also minutes from the National Shrine of Our Lady of the Snows for peaceful weekend outings and a short transit or drive to downtown St. Louis attractions (museums, sports, nightlife) via the region’s MetroLink system, so you can easily mix relaxed local living with city adventures on your days off.