National Survey on Drug Use and Health (NSDUH)
Substance Abuse and Mental Health Services Administration
SAMHSA's annual household survey of substance use and mental health. RepVector does not read it directly — here is what it holds and what we use instead.
Nothing in the platform queries NSDUH, and no RepVector output is derived from it. This page explains what it covers and points to the connected sources that come closest.
What this source is
NSDUH is an annual in-person survey of roughly 70,000 people aged 12 and over in US households, run for SAMHSA.
It produces prevalence estimates for illicit drug use, alcohol and tobacco use, substance use disorder, any mental illness, serious mental illness, major depressive episode and treatment receipt.
Estimates are published nationally, by state, and for sub-state planning regions using small-area estimation.
Known limits
- Sub-state estimates are modelled, not counted, and carry wide intervals.
- The survey covers households, so it misses people who are incarcerated, homeless without shelter, or in institutions — populations with high substance use rates.
- Everything is self-reported, which understates stigmatised behaviour.
- The 2020 collection was disrupted, so year-over-year comparisons across that break are unsafe.
What RepVector reads instead
These connected datasets cover the closest ground and are queried live in a RepVector build.
Common questions
Does RepVector use NSDUH?
RepVector does not read this source directly. Nothing in the platform queries it, and no RepVector output is derived from it. For behavioural health prevalence we read CDC PLACES, which publishes county-level estimates, and we pair it with SAMHSA facility data for supply.
Does NSDUH publish county-level data?
No. The smallest published geography is a sub-state planning region, which usually groups several counties.
Is NSDUH data free?
Yes. Published tables and public-use files are free from SAMHSA.
How current is NSDUH?
National estimates arrive about a year after collection; state estimates lag a little further.
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