According to the 2003 Partnership Attitude Tracking Study, an estimated 23.6 million teens are in grades seven through 12 in America today. Of them:
- 10.8 million (46 percent of the teen population) have tried illegal drugs1;
- 8.4 million (36 percent) have used illegal drugs in the past year2.;
- 5.6 million (24 percent) – nearly one out of every four teens in the nation – have used illegal drugs in the past 30 days3.
Here’s a look at which drugs kids are using:

According to Monitoring the Future, adolescent drug use in America peaked in 1979, declined steadily throughout the 1980s and climbed once again from 1992 to 1996. Drug use then remained relatively stable until 2003, when it declined again.
Overall drug use among American teens is down by statistically significant percentages compared to 1998:
- Trial use (or experimentation, defined as having used a drug at least once) is down to 46 percent in 2003 from 51 percent in 19981.
- Past-year use is down to 36 percent from 41 percent2.
- Past-month use is down to 24 percent from 27 percent3.
Furthermore, teen use of Ecstasy has fallen significantly over the past year from 11 percent to 9 percent. Ecstasy use still remains above the 1998 level of 7 percent. Teen experimentation with Ecstasy is now similar to adolescent consumption of cocaine/crack and methamphetamine.
By far, marijuana remains the most widely used illegal drug among teens. In fact, as the following table shows, the number of teens that have used marijuana in the past 30 days is higher than the number of teens that have ever tried any one other illegal drug.
| Drug |
Percentage of Teens Who Have Used It |
Number of Teens Who Have Used It |
| Marijuana |
39 percent |
9.1 million |
| Marijuana - Past Year |
31 percent |
7.3 million |
| Marijuana - Past Month |
20 percent |
4.7 million |
| Inhalants |
18 percent |
4.3 million |
| Ecstasy |
9 percent |
2.2 million |
| Methamphetamine |
9 percent |
2.2 million |
| LSD |
8 percent |
1.9 million |
| Cocaine/Crack |
7 percent |
1.7 million |
| Heroin |
4 percent |
1.0 million |
A final note: while marijuana remains the most widely used illegal drug among teens, the number of teens who have used marijuana is dwarfed by the number of teens who have tried alcohol and/or tobacco cigarettes. According to Monitoring the Future, 76.6 percent of 12
th graders alone have tried alcohol; 53.7 percent of 12
th graders have tried tobacco cigarettes. Both of these figures have been declining in recent years.
Research shows that anti-drug campaigns are working. Together we continue to keep drug use down among teens.
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1Net marijuana, crack/cocaine, LSD, Ecstasy, heroin, inhalants, methamphetamine trial use, PATS data.
2 Net marijuana, crack/cocaine, inhalants, methamphetamine past year use, PATS data.
3Net marijuana, crack/cocaine, inhalants, methamphetamine trial use, PATS data.