The chart below shows the number and percentage of medical marijuana cardholders by state.

  • Total population in medical marijuana states: 195,792,284
  • Estimate of all state-legal patients: 2,354,403


  1. This is a rough estimate based on Maine’s numbers. There is a registry, but only a small fraction of California patients are registered.
  2. Many families have migrated to Colorado so that patients would be allowed to use medical marijuana, which increases the per capita number of patients.
  3. Registry is not open yet.
  4. Washington has a brand new patient registry. The first day for registrations was July 1, 2016.


Source: Marijuana Policy Project

Last updated: August 15, 2017