| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Bible Grove | city | Illinois | United States | 38.87 | -88.45 | 830 | |
| Biddleborn | city | Illinois | United States | 38.30 | -89.68 | 830 | |
| Big Bay | city | Illinois | United States | 37.32 | -88.72 | 380 | |
| Big Foot Prairie | city | Illinois | United States | 42.50 | -88.60 | 948 | |
| Big Oak Mobile Home Park | city | Illinois | United States | 39.55 | -89.28 | 830 | |
| Big Rock | city | Illinois | United States | 41.76 | -88.55 | 830 | |
| Big Run Acres | city | Illinois | United States | 41.65 | -88.03 | 830 | |
| Biggs | city | Illinois | United States | 40.24 | -89.90 | 830 | |
| Biggsville | city | Illinois | United States | 40.85 | -90.86 | 830 | |
| Bill Butler Mobile Home Park | city | Illinois | United States | 37.72 | -88.93 | 830 | |
| Billett | city | Illinois | United States | 38.66 | -87.65 | 830 | |
| Bingham | city | Illinois | United States | 39.11 | -89.21 | 830 | |
| Binghampton | city | Illinois | United States | 41.72 | -89.30 | 830 | |
| Bingman Station | city | Illinois | United States | 38.08 | -88.24 | 830 | |
| Binney | city | Illinois | United States | 38.99 | -89.73 | 830 | |
| Binnie Hills | city | Illinois | United States | 42.12 | -88.36 | 908 | |
| Binnie Lakes | city | Illinois | United States | 42.12 | -88.36 | 997 | |
| Birch Island | city | Illinois | United States | 39.13 | -90.68 | 830 | |
| Birch Pond | city | Illinois | United States | 42.12 | -87.85 | 830 | |
| Birchwood | city | Illinois | United States | 42.02 | -87.67 | 830 | |
| Birds | city | Illinois | United States | 41.48 | -88.20 | 830 | |
| Birds | city | Illinois | United States | 38.84 | -87.67 | 830 | |
| Birkbeck | city | Illinois | United States | 40.18 | -88.87 | 830 | |
| Birkner | city | Illinois | United States | 38.56 | -90.03 | 830 | |
| Birmingham | city | Illinois | United States | 40.26 | -90.82 | 830 | |
| Bishop | city | Illinois | United States | 40.35 | -89.87 | 830 | |
| Bishop Hill | city | Illinois | United States | 41.20 | -90.12 | 830 | |
| Bishops Ridge | city | Illinois | United States | 42.18 | -88.07 | 830 | |
| Bismarck | city | Illinois | United States | 40.26 | -87.61 | 830 | |
| Bissell | city | Illinois | United States | 39.85 | -89.58 | 830 | |
| Bixby | city | Illinois | United States | 38.49 | -90.22 | 406 |