- Bullion
- Bagnell
- Ballwin
- Barnard
- Barnett
- Barnhart
- Bates City
- Battlefield
- Bel-Nor
- Bel-Ridge
- Bell City
- Bella Villa
- Bellefontaine Neighbors
- Bellerive
- Bernie
- Bevier
- Bassinger Corner
- Biehle
- Birch Tree
- Black Jack
- Blodgett
- Bloomsdale
- Bates Corner
- Burtonville
- Blue Springs
- Blythedale
- Bogard
- Bolckow
- Bonne Terre
- Bentonville