WILLIAMSON, West Virginia — The deadly math in this struggling but proud West Virginia town breaks down like this: For over a decade, two pharmacies just four blocks apart dispensed some 20.8 million prescription painkillers in a town of just 3,191 residents.

That’s more than 6,500 prescription painkillers per person in this coal-mining town that sits just across the Tug Fork River from Kentucky.

Those jarring figures were released this week by the congressional committee investigating the epidemic that has ravaged the Rust Belt — and the two regional drug wholesalers, Miami-Luken and H.D. Smith, that are accused of swamping Williamson with millions of highly addictive opioid pills.