Reform & Medical2000-2011
Medical Cannabis Expansion in the 2000s: State-by-State Growth
How medical marijuana expanded across America in the 2000s — from a handful of states to a nationwide movement reshaping cannabis policy and public opinion.
2000-2011
Time Period
Historical era
4
Key Figures
Historical actors
6
Sections
In-depth coverage
4
FAQs
Common questions
00
Overview
The first decade of the 21st century saw medical marijuana transform from a California experiment into a nationwide movement. By 2000, eight states had enacted medical cannabis laws. By 2011, that number had grown to sixteen, with programs ranging from tightly restricted systems in New Jersey to the quasi-recreational dispensary culture that had emerged in Colorado and parts of California.
Public opinion shifted dramatically during this period. Gallup polling showed support for medical marijuana rising from 73% in 1999 to over 80% by the late 2000s, while support for full legalization climbed from 31% to 46% — approaching a majority for the first time. The lived experience of millions of medical marijuana patients helped normalize cannabis use and eroded decades of prohibitionist messaging.
The Obama administration's 2009 Ogden Memo marked a turning point in federal enforcement policy. Deputy Attorney General David Ogden directed federal prosecutors not to prioritize individuals whose actions were in clear compliance with state medical marijuana laws. While not a guarantee of non-prosecution, the memo provided a measure of certainty that allowed the medical marijuana industry to attract investment and professionalize, setting the stage for the recreational legalization wave that would begin in 2012.
01
The early 2000s saw a steady drumbeat of state-level medical marijuana victories. Oregon and Washington voters approved measures in 1998, Maine and Hawaii followed in 1999 and 2000, and Colorado and Nevada enacted laws through ballot initiatives in 2000. Each state tailored its program to local political realities, creating a patchwork of regulatory approaches that provided valuable data about different policy models.
02
Colorado's medical marijuana program underwent a transformation that foreshadowed its pioneering role in recreational legalization. A 2007 state court ruling affirmed that medical marijuana caregivers could serve multiple patients, sparking an explosion of dispensaries. By 2010, Colorado had more marijuana dispensaries than Starbucks locations. The state's experience demonstrated both the commercial potential of legal cannabis and the regulatory challenges that came with rapid growth.
03
California's unregulated medical marijuana market became both an engine of normalization and a cautionary tale. The state's permissive law, which allowed doctors to recommend cannabis for virtually any condition, led to an estimated 750,000 medical marijuana patients by 2008. While this broad access helped millions of patients, it also drew criticism for the ease with which healthy individuals could obtain recommendations, fueling opponents' arguments that medical marijuana was a stepping stone to full legalization.
04
The Bush administration maintained an aggressive federal enforcement posture throughout the 2000s, with the DEA conducting over 200 raids on medical marijuana operations between 2001 and 2008. Despite this, state programs continued to expand, and courts increasingly ruled in favor of state sovereignty on medical marijuana questions. The disconnect between federal enforcement and state law created legal uncertainty that hampered the industry's growth but did not halt it.
05
The Obama administration's 2009 Ogden Memo represented the most significant federal policy shift since the Controlled Substances Act. The memo directed U.S. Attorneys not to focus resources on individuals in clear compliance with state medical marijuana laws. While the administration later walked back some of this guidance, the initial signal was powerful enough to attract investment, encourage states to strengthen their regulatory frameworks, and give the medical marijuana industry room to professionalize.
06
By 2011, medical marijuana had become a billion-dollar industry with professional advocacy organizations, sophisticated cultivation and processing operations, and an expanding patient base. The National Organization for the Reform of Marijuana Laws (NORML), the Marijuana Policy Project, and other advocacy groups had built the political infrastructure necessary to advance the next frontier: recreational legalization for adult use.
Key Figures
David Ogden
Deputy AG who issued the 2009 federal non-enforcement memo
Barack Obama
President whose administration initially softened federal cannabis enforcement
Rob Kampia
Marijuana Policy Project founder who led state-level campaigns
Steve DeAngelo
founded Harborside Health Center, one of the largest dispensaries
Historical Significance
Medical marijuana expanded from 8 states in 2000 to 16 by 2011, transforming cannabis from a fringe cause into a billion-dollar industry and shifting public opinion toward majority support for legalization.
Frequently Asked Questions
How many states had medical marijuana by 2011?
By 2011, sixteen states and Washington D.C. had enacted medical marijuana programs, up from eight states in 2000. Programs varied significantly in restrictiveness, patient counts, and regulatory frameworks.
What was the Ogden Memo?
The Ogden Memo was a 2009 directive from Deputy AG David Ogden instructing federal prosecutors not to prioritize individuals in clear compliance with state medical marijuana laws. It provided a measure of federal tolerance that allowed the medical marijuana industry to grow and attract investment.
How did public opinion on cannabis change in the 2000s?
Support for medical marijuana exceeded 80% by the late 2000s. More significantly, Gallup polling showed support for full legalization climbing from 31% in 2000 to 46% by 2011, approaching a majority. The lived experience of medical patients helped normalize cannabis and erode prohibitionist messaging.
How did the Bush administration approach medical marijuana?
The Bush administration maintained aggressive federal enforcement, with the DEA conducting over 200 raids on medical marijuana operations between 2001 and 2008. Despite this, state programs continued to expand and courts increasingly supported state sovereignty on medical marijuana questions.