The Addiction Crisis in Thunder Bay

Thunder Bay has held the highest per-capita opioid overdose death rate in Ontario every year for which data is available. In 2024, the region recorded 80 opioid toxicity deaths — a rate of 69.14 deaths per 100,000 people, more than four times the Ontario provincial average of 14.3 per 100,000. The city's only supervised consumption site, Path 525, was shut down in March 2025 due to provincial rules about proximity to schools and childcare centres; front-line workers reported an immediate surge in overdoses afterward. A synthetic opioid called cychlorphine — never approved for clinical use — was detected in Thunder Bay's drug supply in 2025, adding to an already toxic street supply dominated by fentanyl. The crisis disproportionately affects Indigenous peoples and people cycling through the criminal justice system. Community organizations, including the DEK Foundation and the John Howard Society of Ontario, continue to raise alarm about gaps in post-incarceration support and recovery housing for women.

Across Canada, approximately 7,560 people died of apparent opioid toxicity in 2023 (PHAC). Deaths declined in 2024, but the crisis remains well above pre-pandemic levels. Accidental poisoning is the leading cause of death for males aged 20–49 and females aged 20–39 in Canada. Fentanyl and its analogues are involved in the majority of deaths nationally. Ontario accounts for a large share of the national toll alongside British Columbia and Alberta.

01. What is happening in Thunder Bay

02. A crisis that did not start this month

Ontario recorded 2,639 opioid toxicity deaths in 2023 and 2,231 in 2024 — a roughly 15 percent decline year-over-year, though still well above pre-pandemic levels. The 2024 provincial rate was 14.3 deaths per 100,000 people, down from a pandemic peak of 19.4 per 100,000 in 2021. Fentanyl or a fentanyl analogue was detected in more than 83 percent of opioid toxicity deaths in Ontario in 2024. Prescription benzodiazepines appeared in 45 percent of deaths — a sharp rise from 33 percent the prior year, signalling an increasingly complex and dangerous drug supply. Northern Ontario communities, led by Thunder Bay, consistently report the province's highest per-capita mortality rates. Ontario's death rate has been declining, but Thunder Bay's rate remains an extreme outlier at roughly five times the provincial average.

03. Why is it getting worse?

Several compounding factors drive Thunder Bay's extreme opioid mortality rate. Geographic isolation limits access to treatment and harm reduction services across a vast northern district. The drug supply has grown increasingly toxic, with fentanyl dominating the street supply and novel synthetic opioids such as cychlorphine appearing for the first time in 2025. Benzodiazepine contamination in the drug supply has risen sharply, making overdoses harder to reverse with naloxone alone. The closure of Path 525 — the district's only supervised consumption site — in March 2025 removed a critical safety net, and front-line workers documented an immediate rise in overdose incidents following the closure. A high concentration of poverty, intergenerational trauma, and inadequate housing are structural drivers. The region's Indigenous population faces disproportionate harm. The intersection of incarceration and drug use is acute: a John Howard Society of Ontario report identified the transition out of corrections as a critical juncture at which people are at extreme risk of fatal overdose, owing to lost tolerance and lack of continuity of care.

04. Where hope still lives

Communities across Ontario are responding with naloxone distribution, harm reduction programs, and peer support networks. Every person trained in naloxone use is a potential life saved.

05. In the news

The reporting behind this page:

• Thunder Bay tops Ontario's opioid death rates for another yearCBC News · 2025-05-27
• Province sees big drop in opioid-related death rates as northern Ontario maintains highest numbersCBC News · 2025
• Reintegration from corrections a 'critical juncture' in northern Ontario's drug crisisCBC News · 2025
• 'Counterfeit' opioid first found in Toronto now in Thunder Bay, prompting public drug alertCBC News · 2025
• Overdose awareness walk in Thunder Bay aims to put city's drug crisis in the spotlightCBC News · 2026
• More than 2,200 died of opioids in Ontario last year as numbers trend downwardCBC News · 2025