45 Million Americans Have a Substance Use Disorder Right Now. The Government’s Own Survey Says So — and Says Most Won’t Get Treated.

SAMHSA put out its annual National Survey on Drug Use and Health on July 27 — earlier in the year than the agency has ever managed to release it, which is itself a small, quietly good sign about how the data pipeline is running. What’s inside the 2025 NSDUH is a snapshot of a country still using at scale: 129.1 million people 12 and older reported drinking alcohol in the past month, 46.9 million used tobacco, 43.8 million used marijuana, and 29.3 million vaped nicotine.

Read past the individual substance numbers and one figure does the real work: nearly 45 million Americans — 15.3% of everyone 12 and older — met the diagnostic criteria for a substance use disorder in the past year.

That’s not a count of people who used a drug. It’s a count of people whose use of one has crossed the clinical line into a disorder — a distinction the survey is careful about and one that matters, because it’s the difference between “this happened at a party” and “this is now running the household.” The one piece of the report that reads as unambiguous good news: use of alcohol, drugs, and tobacco among adolescents (12–17) and young adults (18–25) declined across the 2021–2025 window the survey tracks, a trend line that, if it holds, changes the shape of this problem a decade from now more than any single treatment innovation will.

The harder number sits next to the encouraging one. Of adolescents who needed mental health treatment, 27.6% received it; among adults, 21.6% did. Flip those percentages around and you’re looking at roughly three out of every four adolescents, and four out of every five adults, who needed help and didn’t get it — not because the help doesn’t exist, but because most people never find the door to it, or find it and can’t get through.

This isn’t a new failure mode; it’s a durable one. NIAAA’s own figures put the alcohol-specific version of this same gap at roughly 27.9 million Americans with alcohol use disorder and only about 2.1 million — 7.6% — treated in the past year, a ratio that has held roughly steady for years even as awareness campaigns and screening tools have multiplied. That gap between “has a disorder” and “gets treated” isn’t a footnote in a federal survey. For a platform built specifically to shorten the distance between someone realizing they need help and someone actually getting it, it’s the whole ballgame, restated in the government’s own numbers, one more year in a row.