Heavily Enforced
Very Intolerant
| Quality | Average ($/Oz.)* | Sample Size |
| High Quality | $422.94 | 1081 |
| Medium Quality | $299.91 | 697 |
| Low Quality | $178.41 | 100 |
| Peoria, Illinois | $180 | a quarter | high quality | May 17, 2012 |
| Glen Ellyn, Illinois | $120 | 5 grams | high quality | May 17, 2012 |
| Homer Glen, Illinois | $60 | an eighth | medium quality | May 17, 2012 |
| Oswego, Illinois | $60 | an eighth | high quality | May 16, 2012 |
| Fox Lake, Illinois | $100 | 5 grams | medium quality | May 16, 2012 |
| Bolingbrook, Illinois | $400 | an ounce | high quality | May 16, 2012 |
| Flossmoor, Illinois | $175 | a half ounce | high quality | May 16, 2012 |
| Chicago, Illinois | $110 | a quarter | high quality | May 16, 2012 |
| Manteno, Illinois | $20 | 5 grams | high quality | May 15, 2012 |
| Chicago, Illinois | $210 | a half ounce | high quality | May 15, 2012 |
| Winnetka, Illinois | $100 | 5 grams | medium quality | May 15, 2012 |
| Lisle, Illinois | $60 | an eighth | medium quality | May 15, 2012 |
| Carol Stream, Illinois | $50 | an eighth | high quality | May 14, 2012 |
| Chicago, Illinois | $10 | an ounce | medium quality | May 14, 2012 |
| Pekin, Illinois | $180 | a half ounce | high quality | May 14, 2012 |