This report focuses on past month marijuana and blunt use among youths aged 12 to 17.7 Data are presented by demographic and academic characteristics. All findings are based on data from the 2005 NSDUH. The National Survey on Drug Use and Health (NSDUH) includes questions on the use of marijuana and blunts. Respondents who reported lifetime use of marijuana or blunts were asked to report when they last used these substances, including whether they used them in the 30 days prior to being interviewed (i.e., in the past month). Blunt use is defined as smoking part or all of a cigar with marijuana in it. In 2005, 6.8 percent of youths aged 12 to 17 used marijuana in the past month, and 3.5 percent had used cigars with marijuana in them ("blunts") in the past month. Among youths, past month use of both marijuana and blunts increased with age and was more likely among males than females (marijuana: 7.5 vs. 6.2 percent; blunts: 4.2 vs. 2.9 percent). Among past month marijuana users aged 12 to 17, those in the Northeast were more likely to have used blunts in the past month than those in the Midwest and West (62.5 vs. 48.3 and 43.1 percent), and those in the South were more likely to have used blunts than those in the West (54.4 vs. 43.1 percent). (Contains 3 figures, 1 table, and 7 endnotes.)