Northern MileNorth American trucking data
St. Catharines · Ontario

St. Catharines diesel prices

258.6¢/L-5.7 vs national
NRCan survey print Tue, 27 Oct 2026Ontario average 257.8¢/L

Across the line

Diesel crosses the border, but the number does not. The Canadian side is published per litre and the American side per gallon.

St. Catharines · Canadian side258.6¢/L
Central Atlantic · the US district next door$6.508/gal

The American figure is the EIA weekly retail survey — published as $6.508/gal this week — shown the way an American carrier reads it, with the Canadian-dollar equivalent beside it once the page loads. A gallon is not a litre, so these two lines measure the same fuel in different units and the cents will never match. What does compare is the market: a load crossing into Central Atlantic buys its fuel on the other side of a border.

St. Catharines runs 5.7¢ below the national index — a real difference on a 500-litre fill. Work out a trip

Citing this figure
St. Catharines diesel: 258.6¢/L, NRCan weekly survey print Tue, 27 Oct 2026. Northern Mile Media, dashboard.northernmilemedia.com/diesel-prices/ontario/st-catharines/
How it is calculated

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

Sarnia252.9   -4.9Windsor253.6   -4.2Kitchener253.7   -4.1Barrie255.9   -1.9Kingston256.4   -1.4Guelph256.6   -1.2Hamilton256.7   -1.1Sudbury256.9   -0.9London257.0   -0.8Brantford257.4   -0.4Oshawa257.5   -0.3Peterborough257.5   -0.3North Bay257.9   +0.1Toronto258.4   +0.6St. Catharines258.6   +0.8Timmins260.2   +2.4Thunder Bay262.6   +4.8Ottawa262.9   +5.1Sault Ste Marie265.1   +7.3

Every price is an NRCan survey observation from the print dated Tue, 27 Oct 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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