According to Invisalign, the company, the average cost of treatment across the United States is $5,000. Invisalign also states the costs will vary depending on “the kind of treatment you need, how extensive the issues are that you want corrected, how long your treatment plan will last, where you live, and other factors determined by your dentist…” One of the most outstanding factors is location. In Fairfield County, Connecticut, and more specifically the Stamford area that includes Darien, New Canaan and Greenwich, I have seen the price vary from $4,500 all the way to $8,000. But the average Invisalign case runs around $5,000 for treatment that usually takes less than one year. A large amount of movement and correction can be performed within one year, as seen from the case below.