Illinois has 28 counties tracked by the Boom Town Index, with an average score of 85/100.
The state shows above-average economic momentum, with strong signals across multiple growth indicators.
The top-performing county is Winnebago County (BTI 100), while Vermilion County (BTI 26) trails the pack.
| Rank | County | BTI Score | Proj. Growth | GDP | Pop Growth | Income | Ratio |
|---|---|---|---|---|---|---|---|
| 01 | Winnebago County | 100 | +5.6% | +1.0% | -0.3% | +6.8% | 2.9x |
| 02 | DeKalb County | 98 | +4.2% | +0.1% | -0.2% | +7.2% | 5.1x |
| 03 | Peoria County | 98 | +4.1% | +1.9% | -0.7% | +8.5% | 2.1x |
| 04 | Macon County | 98 | +4.0% | +0.5% | -0.8% | +6.6% | 1.8x |
| 05 | Tazewell County | 97 | +3.9% | +2.3% | -0.5% | +8.3% | 3.6x |
| 06 | Lake County | 96 | +3.5% | +1.7% | -0.2% | +7.7% | 3.4x |
| 07 | LaSalle County | 94 | +3.3% | -0.6% | -0.5% | +8.1% | 2.8x |
| 08 | Grundy County | 94 | +3.2% | +5.9% | +0.5% | +10.1% | 2.7x |
| 09 | Kankakee County | 94 | +3.2% | +4.1% | -0.6% | +6.2% | 2.8x |
| 10 | Jackson County | 93 | +3.1% | -0.8% | -0.9% | +7.5% | 2.5x |
| 11 | McHenry County | 93 | +3.1% | +2.0% | +0.1% | +6.7% | 7.0x |
| 12 | DuPage County | 92 | +3.1% | +0.5% | -0.4% | +6.7% | 3.3x |
| 13 | Champaign County | 92 | +3.1% | +1.4% | -0.0% | +7.3% | 3.3x |
| 14 | Sangamon County | 91 | +3.0% | +3.9% | -0.3% | +8.3% | 2.6x |
| 15 | Kendall County | 88 | +2.6% | +1.3% | +1.6% | +4.5% | 9.4x |
| 16 | Madison County | 86 | +2.5% | +8.3% | -0.2% | +7.3% | 3.3x |
| 17 | Boone County | 86 | +2.4% | +2.9% | -0.2% | +8.7% | 6.0x |
| 18 | Adams County | 85 | +2.4% | +0.8% | -0.5% | +8.8% | 2.8x |
| 19 | Kane County | 83 | +2.3% | +1.9% | -0.3% | +8.4% | 5.2x |
| 20 | Will County | 78 | +1.9% | +2.2% | +0.1% | +8.3% | 5.2x |
| 21 | Rock Island County | 76 | +1.8% | +0.1% | -0.6% | +9.3% | 2.0x |
| 22 | Cook County | 76 | +1.8% | +1.3% | -0.8% | +8.6% | 3.5x |
| 23 | St. Clair County | 74 | +1.7% | +1.1% | -0.7% | +9.4% | 3.2x |
| 24 | Ogle County | 72 | +1.6% | -0.5% | -0.2% | +12.2% | 3.0x |
| 25 | McLean County | 71 | +1.6% | +1.9% | -0.1% | +7.1% | 2.4x |
| 26 | Williamson County | 69 | +1.5% | +2.3% | -0.2% | +10.3% | 3.0x |
| 27 | Whiteside County | 68 | +1.4% | +2.6% | -0.7% | +5.0% | 3.1x |
| 28 | Vermilion County | 26 | -0.2% | -0.3% | -1.1% | +7.6% | 2.1x |