Towns
| State | City/Town | Town Title |
|---|---|---|
| Illinois | Berwyn | Berwyn, IL |
| Illinois | Bethalto | Bethalto, IL |
| Illinois | Bethany | Bethany, IL |
| Illinois | Big Rock | Big Rock, IL |
| Illinois | Biggsville | Biggsville, IL |
| Illinois | Bingham | Bingham, IL |
| Illinois | Bishop Hill | Bishop Hill, IL |
| Illinois | Bismarck | Bismarck, IL |
| Illinois | Blackstone | Blackstone, IL |
| Illinois | Blandinsville | Blandinsville, IL |
| Illinois | Bloomingdale | Bloomingdale, IL |
| Illinois | Bloomington | Bloomington, IL |
| Illinois | Blue Island | Blue Island, IL |
| Illinois | Blue Mound | Blue Mound, IL |
| Illinois | Bluff Springs | Bluff Springs, IL |
| Illinois | Bluffs | Bluffs, IL |
| Illinois | Bluford | Bluford, IL |
| Illinois | Bolingbrook | Bolingbrook, IL |
| Illinois | Bondville | Bondville, IL |
| Illinois | Bone Gap | Bone Gap, IL |
| Illinois | Bonfield | Bonfield, IL |
| Illinois | Bonnie | Bonnie, IL |
| Illinois | Boody | Boody, IL |
| Illinois | Bourbonnais | Bourbonnais, IL |
| Illinois | Bowen | Bowen, IL |