The US vaping market is the world's largest by revenue, but measuring its true size depends on what you count. Multiple research firms offer starkly different figures:
| Source | 2026 Size | Scope | Published |
|---|---|---|---|
| Global Growth Insights | $13-14B | US total (all channels) | 2026 |
| Global Growth Insights (Report) | $9.12B | North America (US ~86%) | 2026 |
| vfunvape (Post-FDA analysis) | $7.5B+ | US TAM post-fruit authorization | May 2026 |
| Persistence Market Research | US ~86% of NA | US share of North American revenue | 2026 |
Source: Multiple research firms, cross-referenced. [SINGLE_SOURCE] for individual firm estimates.
The $13-14 billion figure likely captures the entire market including gray and illicit channels. The $7.5 billion post-FDA figure represents the addressable compliant market after the May 2026 Glas fruit-flavor authorization. The $9.12 billion North American figure, with the US accounting for roughly 86%, suggests a US-only size of approximately $7.8 billion in the tracked retail channel.
Here is the critical structural insight: the compliant market (45 FDA-authorized products) and the gray market (6,000+ unauthorized products) operate as parallel universes. The gray market is roughly 2-3x the size of the compliant market in revenue terms, though exact figures are inherently imprecise for illicit commerce. For context on how these products reach US shelves despite lacking authorization, see our state vape tax guide, which shows how tax avoidance further incentivizes gray market operations.
