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| Icon | Grade | Category & Description | Trail Density (miles/sq. mi.) |
 | A | A truly Active community | .65 mile or greater |
| B | Active, with room for improvement | ½ - .65 mile | |
 | C | Typical, but above average | .35 - ½ mile |
| D | Typical, but below average | .2 - .35 mile | |
 |
FAIL | Sedentary, with a trivial trail | .1 - .2 mile |
 |
FAIL | A Dead-end, trailess community | 0 - .025 mile |
Chicago Area:
Greenway Trail Systems
Active Communities in all counties
- Cook
B Density: 0.59 Active A+ Density: 1.00 Active A+ Density: 1.08 Active B- Density: 0.53 Active A+ Density: 0.75 Active B Density: 0.59 Active B Density: 0.56 Active B+ Density: 0.63 Active A+ Density: 0.90 Active A+ Density: 0.91 Active B- Density: 0.50 Active B Density: 0.58 Active A+ Density: 0.88 Active A+ Density: 0.78 Active - Chicago
- North Cook
A+ Density: 1.00 Active B Density: 0.56 Active B- Density: 0.50 Active B Density: 0.58 Active A+ Density: 0.78 Active - West Cook
B Density: 0.59 Active B Density: 0.59 Active A+ Density: 0.91 Active - South Cook
A+ Density: 1.08 Active B- Density: 0.53 Active A+ Density: 0.75 Active B+ Density: 0.63 Active A+ Density: 0.90 Active A+ Density: 0.88 Active - DuPage
B+ Density: 0.62 Active A+ Density: 0.93 Active B- Density: 0.51 Active B Density: 0.58 Active A+ Density: 0.87 Active - Kane
A+ Density: 0.84 Active A+ Density: 0.77 Active A+ Density: 1.46 Active B+ Density: 0.63 Active - Lake
B- Density: 0.52 Active A Density: 0.74 Active
0.59