Thunder Bay sits at City Score rank #279 with a standing of 44%, from 7 of 8 open-data pillars (tax, construction, connectivity, indoor air, water, seismic hazard, growth, safety). Missing pillars score at median standing so thin coverage cannot inflate the rank. The chart below shows how that standing moves year to year.
Latest owned placements: indoor radon rank #31 of 327 at 159 Bq/m³ survey mean; residential mill rate rank #26 of 57 (14.48 mill rate). Full tables and method notes live on each study edition; atlas readings for the same slug open from the topic buttons.
Against the national corpus, Thunder Bay carries a City Score standing of 44% (rank #279 of 343) with 7 of 8 pillars observed. That sits 9 points below the Ontario peer average across 123 ranked cities. Within Ontario, Thunder Bay ranks #110 of 123 on City Score.
The strongest signal in the current chart is drinking-water hardness (standing 97%, rank #332 of 343, raw score 45.8). The weakest observed pillar is indoor radon (standing 9%, rank #31 of 327). Crime severity uses the Statistics Canada police-service CSI mapped to Thunder Bay, Ontario (table 35100026), not a regional proxy.
Drinking-water hardness on the water atlas reads 46 mg/L as CaCO₃ for Thunder Bay. Compare that figure to the hardness pillar on the chart and to the national hardness guide on the hub.
