St. Charles, IL cannabis price index
Flower in St. Charles typically costs $10.04 per gram (average $10.71) — measured across 686 priced listings at 2 licensed dispensaries.
Comparable range $6.80–$15.86 per gram · index refreshed Oct 2, 2026
↑ See the statewide Illinois flower price index
St. Charles flower prices by package size
Averages of the real packages on St. Charles menus — not a per-gram figure multiplied up.
| Size | Average | Lowest | Average per gram | Listings |
|---|---|---|---|---|
| Eighth (3.5g) | $45.93 | $30.50 | $13.12 | 228 |
| Quarter (7g) | $62.96 | $35.50 | $8.99 | 222 |
| Half (14g) | $112.45 | $65.50 | $8.03 | 120 |
| Ounce (28g) | $185.09 | $120.50 | $6.61 | 74 |
How this index is built
Each priced flower listing in St. Charles whose package size is published on the menu is converted to a price per gram. Listings with no published size are excluded rather than estimated, which is why the listing count here is smaller than the total menu count.
Go deeper: cheapest weed in St. Charles, cheap ounces, cheapest flower per gram, St. Charles deals.
Figures come from licensed Illinois dispensary menus and change constantly. Adults 21+ only.