- Barrington Township
- Barrington
- Bartlett
- Batavia
- Bedford Park
- Beecher
- Belleville
- Bellwood
- Bensenville
- Berkeley
- Berwyn
- Big Rock Township
- Big Rock
- Bloomingdale
- Bloomingdale Township
- Blue Island
- Bolingbrook
- Bourbonnais township
- Bourbonnais
- Braceville
- Bradley
- Braidwood
- Bridgeview
- Bristol
- Broadview
- Brookfield
- Buffalo Grove
- Burbank
- Burlington Township
- Burlington