Northern MileSt. Catharines diesel prices
220.8¢/L-12.2 vs national
St. Catharines runs 12.2¢ below the national index — a real difference on a 500-litre fill. Work out a trip
Citing this figure
St. Catharines diesel: 220.8¢/L, NRCan weekly survey print Tue, 25 Aug 2026. Northern Mile Media, dashboard.northernmilemedia.com/diesel-prices/ontario/st-catharines/
What drives St. Catharines prices
St. Catharines sits in the Niagara region on the QEW, with Highway 406 running through the city. The QEW is the main freight corridor through the region, tying St. Catharines to the movement of goods across the Niagara peninsula, and Highway 406 connects the city to the surrounding area. That position on the QEW and Highway 406 is what shapes the local fuel market, anchoring the city to the flow of traffic that moves through the Niagara region day in and day out.
Ontario survey cities
¢/L · distance from the provincial mean
Kitchener218.5 -4.2
Windsor218.6 -4.1
Kingston219.2 -3.5
Brantford219.5 -3.2
London220.3 -2.4
Barrie220.4 -2.3
Thunder Bay220.6 -2.1
St. Catharines220.8 -1.9
Oshawa221.0 -1.7
Guelph221.2 -1.5
Toronto222.4 -0.3
Hamilton223.0 +0.3
Peterborough223.9 +1.2
Sarnia223.9 +1.2
North Bay225.0 +2.3
Ottawa226.0 +3.3
Sudbury226.7 +4.0
Timmins227.7 +5.0
Sault Ste Marie231.8 +9.1
Every price is an NRCan survey observation from the print dated Tue, 25 Aug 2026. The provincial figure is the unweighted mean of its survey cities, the same figure that enters the Northern Mile Diesel Index.
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