Ontario Lake Depths
Ontario inland lakes

Ontario lake depth maps

Interactive 3D depth maps of Ontario's lakes, built from public Ontario MNRF bathymetric surveys. 3376 lakes across 41 districts and counties — and growing.

Lakes near me — find the mapped lakes around you
Algoma District — 687 lakesBarrie — 1 lakeBrant County — 6 lakesBruce County — 22 lakesCochrane District — 285 lakesMuskoka — 65 lakesDurham Region — 8 lakesElgin County — 1 lakeFrontenac County — 79 lakesGrey County — 7 lakesHaliburton County — 233 lakesHalton Region — 1 lakeHastings County — 28 lakesHuron County — 1 lakeKawartha Lakes — 18 lakesKenora District — 496 lakesLanark County — 11 lakesLeeds and Grenville — 21 lakesLennox and Addington County — 28 lakesLondon — 3 lakesManitoulin District — 15 lakesMiddlesex County — 3 lakesNiagara Region — 3 lakesNipissing District — 167 lakesNorfolk County — 7 lakesOxford County — 6 lakesParry Sound District — 118 lakesPeel Region — 11 lakesPeterborough County — 96 lakesPrince Edward County — 2 lakesRainy River District — 79 lakesRenfrew County — 153 lakesSimcoe County — 12 lakesStormont, Dundas and Glengarry — 1 lakeSudbury District — 301 lakesThunder Bay District — 285 lakesTimiskaming District — 89 lakesToronto — 1 lakeWaterloo Region — 3 lakesWellington County — 3 lakesYork Region — 20 lakes

Tap a highlighted district or county to explore its lakes. Areas shown in grey have no surveyed lakes in the current dataset.

Fish of Ontario lakes20 species: where each one lives, when and how anglers catch them, and how to tell them apart

Districts and counties mapped

Algoma District lakes
Algoma District
687 lakes
Barrie lakes
Barrie
1 lake
Brant County lakes
Brant County
6 lakes
Bruce County lakes
Bruce County
22 lakes
Cochrane District lakes
Cochrane District
285 lakes
Durham Region lakes
Durham Region
8 lakes
Elgin County lakes
Elgin County
1 lake
Frontenac County lakes
Frontenac County
79 lakes
Grey County lakes
Grey County
7 lakes
Haliburton County lakes
Haliburton County
233 lakes
Halton Region lakes
Halton Region
1 lake
Hastings County lakes
Hastings County
28 lakes
Huron County lakes
Huron County
1 lake
Kawartha Lakes lakes
Kawartha Lakes
18 lakes
Kenora District lakes
Kenora District
496 lakes
Lanark County lakes
Lanark County
11 lakes
Leeds and Grenville lakes
Leeds and Grenville
21 lakes
Lennox and Addington County lakes
Lennox and Addington County
28 lakes
London lakes
London
3 lakes
Manitoulin District lakes
Manitoulin District
15 lakes
Middlesex County lakes
Middlesex County
3 lakes
Muskoka lakes
Muskoka
65 lakes
Niagara Region lakes
Niagara Region
3 lakes
Nipissing District lakes
Nipissing District
167 lakes
Norfolk County lakes
Norfolk County
7 lakes
Oxford County lakes
Oxford County
6 lakes
Parry Sound District lakes
Parry Sound District
118 lakes
Peel Region lakes
Peel Region
11 lakes
Peterborough County lakes
Peterborough County
96 lakes
Prince Edward County lakes
Prince Edward County
2 lakes
Rainy River District lakes
Rainy River District
79 lakes
Renfrew County lakes
Renfrew County
153 lakes
Simcoe County lakes
Simcoe County
12 lakes
Stormont, Dundas and Glengarry lakes
Stormont, Dundas and Glengarry
1 lake
Sudbury District lakes
Sudbury District
301 lakes
Thunder Bay District lakes
Thunder Bay District
285 lakes
Timiskaming District lakes
Timiskaming District
89 lakes
Toronto lakes
Toronto
1 lake
Waterloo Region lakes
Waterloo Region
3 lakes
Wellington County lakes
Wellington County
3 lakes
York Region lakes
York Region
20 lakes

Explore by the numbers