The top-ranked counties in Illinois on the Boom Town Index — where economic growth outpaces housing prices.
| # | County | BTI Score | Proj. Growth |
|---|---|---|---|
| 01 | Winnebago County IL | 100 | +5.6% |
| 02 | DeKalb County IL | 98 | +4.2% |
| 03 | Peoria County IL | 98 | +4.1% |
| 04 | Macon County IL | 98 | +4.0% |
| 05 | Tazewell County IL | 97 | +3.9% |
| 06 | Lake County IL | 96 | +3.5% |
| 07 | LaSalle County IL | 94 | +3.3% |
| 08 | Grundy County IL | 94 | +3.2% |
| 09 | Kankakee County IL | 94 | +3.2% |
| 10 | Jackson County IL | 93 | +3.1% |
| 11 | McHenry County IL | 93 | +3.1% |
| 12 | DuPage County IL | 92 | +3.1% |
| 13 | Champaign County IL | 92 | +3.1% |
| 14 | Sangamon County IL | 91 | +3.0% |
| 15 | Kendall County IL | 88 | +2.6% |
| 16 | Madison County IL | 86 | +2.5% |
| 17 | Boone County IL | 86 | +2.4% |
| 18 | Adams County IL | 85 | +2.4% |
| 19 | Kane County IL | 83 | +2.3% |
| 20 | Will County IL | 78 | +1.9% |
| 21 | Rock Island County IL | 76 | +1.8% |
| 22 | Cook County IL | 76 | +1.8% |
| 23 | St. Clair County IL | 74 | +1.7% |
| 24 | Ogle County IL | 72 | +1.6% |
| 25 | McLean County IL | 71 | +1.6% |
| 26 | Williamson County IL | 69 | +1.5% |
| 27 | Whiteside County IL | 68 | +1.4% |
| 28 | Vermilion County IL | 26 | -0.2% |