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Geography · Great Lakes · Map

How much of Lake Huron is in Canada? 61.0%

Canada holds 61.0% of Lake Huron, 36,550 of its 59,937 km² of surface, the largest Canadian share of any Great Lake. The split is measured along the International Boundary Commission's surveyed border.

Published 9 Oct 2026 · Open Data Canada Sources International Boundary Commission · Natural Earth · NOAA GLERL
  • 59,937 km²total surface, second-largest of the five Great Lakes
  • 61.0%in Canada (36,550 km²), first of five by Canadian share
  • 39.0%in the United States (23,387 km²)
  • 40.8%of all Great Lakes surface Canada holds (89,664 km²)
Map of Lake Huron split along the Canada–U.S. boundary, shown as a dashed line. The Canadian part, 36,550 km² or 61.0%, is red; the U.S. part, 23,387 km², is navy.

Surface area on each side of the surveyed border. Source: International Boundary Commission boundary v1.3; Natural Earth lake outlines; ODC calculation in an equal-area projection (EPSG:3174).

Canada holds 61% of Lake Huron, the most of any Great Lake

Huron is the most Canadian of the Great Lakes. Its 36,550 km² on the Canadian side are 40.8% of all the Great Lakes surface Canada holds (89,664 km²), more than any other lake. Georgian Bay and the North Channel are counted as part of Lake Huron here, and both sit entirely on the Canadian side. Huron shares one water level with Lake Michigan: the provisional September 2026 Michigan-Huron level was 0.9 cm above its 1918–2025 September average (56th-highest of 109 Septembers).

All five lakes compared

Lake Canada share Canada km² U.S. km² Total km²
Superior 35.8% 29,460 52,851 82,311
Michigan 0.0% 0 57,541 57,541
Huron 61.0% 36,550 23,387 59,937
Erie 50.5% 13,002 12,734 25,736
Ontario 54.7% 10,653 8,810 19,464
All five lakes 36.6% 89,664 155,323 244,987

Common questions

How much of Lake Huron is in Canada? Canada holds 61.0% of Lake Huron's surface, 36,550 of 59,937 km², the largest Canadian share of any Great Lake.

Is Georgian Bay part of Lake Huron? Yes. Georgian Bay is an arm of Lake Huron, and it is included in the Canadian share on this page.

Is more of Lake Huron in Canada or the US? Canada, with 61.0% of the surface to the United States' 39.0%.

Sources

Method Each lake outline was cut along the surveyed boundary and measured in EPSG:3174 (NAD83 / Great Lakes and St. Lawrence Albers), an equal-area projection. Figures are the published split from our Great Lakes map.

Limits

  • Surface area only. The boundary data and lake outlines give no depth, water volume or per-country shoreline, so this page does not say how much of the lake's water each country holds.
  • NOAA reports one water level for Michigan and Huron together; there is no separate level for either lake.

All five lakes on one map: How much of each Great Lake is in Canada?

Other lakes: Lake Superior · Lake Michigan · Lake Erie · Lake Ontario

Published

9 October 2026

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How we work

Every figure comes from a named public source, with the method stated. Read our methods

Cite this chart

Open Data Canada. "Canada holds 61% of Lake Huron, the most of any Great Lake." Published 9 October 2026. https://opendatacanada.ca/charts/lake-huron-canada-us-split