Lake
Great Slave Lake
Natural Earth’s outline of Great Slave Lake measures about 26,100 km² (10,100 mi²), the 10th largest of the 104 lakes on sizeversus, and about the same size as Equatorial Guinea.
200 km
- Equatorial Guinea
- Great Slave Lake
The numbers
- 26,100km²Area, measured10,100 mi² · Natural Earth outline
- 27,200km²Area, publishedWikidata · 4.1% above our measure
- 614mGreatest depthaverage about 60.5 m
- 1,580km³VolumeWikidata
- 156mAbove sea levelSurface, Wikidata
The area is measured from the outline drawn above, on the WGS84 ellipsoid; the published figure is shown beside it, and a water body is kept only if the two are within 10%.
What the numbers say about Great Slave Lake
- The Caspian Sea (called a sea or a lake, depending on the definition), the largest of the 104 lakes ranked on sizeversus, is 14.5× the size of Great Slave Lake; Great Slave Lake ranks 10th.
- Great Slave Lake sits between Lake Malawi (28,800 km²) and Lake Erie (25,700 km²) in the ranking.
- Counted as a country, Great Slave Lake would be larger than 65 of the 212 countries listed on sizeversus and would rank 148th by area, between Equatorial Guinea (26,700 km²) and North Macedonia (25,400 km²).
- It is larger than 10 of the 51 US states and districts (the biggest of them is Maryland, 25,500 km²) and smaller than 41.
- It is larger than 3 of the 31 provinces and regions of China (the biggest of them is Beijing, 16,300 km²) and smaller than 28.
- The closest US state is Maryland (25,500 km²): Great Slave Lake is about the same size as Maryland.
- Wikidata records a greatest depth of 614 m; with its volume that gives an average depth of about 61 m.
- Wikidata records a volume of 1,580 km³. Poured over Belgium (30,700 km²), that water would stand 52 m deep.
- Its surface lies about 156 m above sea level (Wikidata).
- On a standard web map (Web Mercator), a place at 62°N is drawn about 4.5× too large in area, so Great Slave Lake looks bigger there than it is.
- Laid out flat, Great Slave Lake stretches about 222 km north to south and 417 km east to west.
- Our measured 26,100 km² is 4.1% below Wikidata’s published figure of 27,200 km². Published areas of lakes and seas move with the water level and with what is counted, so a few percent is expected.
About the same size as
Countries
On the shore
Natural Earth’s outlines of Canada contain or lie within 4 km of the outline of Great Slave Lake. That is what its geometry says, and it is not a statement about who owns the water or where any border runs in it.
Names
- Great Slave Lakethe name in this page’s titlesource: Wikidata’s English label
- Great Slavealso calledsource: Natural Earth
Where Great Slave Lake ranks
Great Slave Lake is the 10th largest of the 104 lakes on sizeversus, ranked by measured area.
Compare Great Slave Lake
Share this outline
Sources and method
- Outline
- Natural Earth, 1:10m Lakes + Reservoirs, public domain (Lakes + Reservoirs). Outlines of lakes are drawn at 1:10 million.
- Boundary
- A lake or a sea has no legal boundary of its own. The outline is a cartographic one, and the page says so by showing the measured area beside the published one.
- Area basis
- Measured outline: computed on the WGS84 ellipsoid from the full-detail outline and shown rounded. Published figure: Wikidata (CC0), fetched 2026-11-11. An outline is kept within 10% of the published figure and matched to other places automatically within 5%.
- Depth, volume, height
- As recorded in Wikidata; a volume that cannot be right for the area and depth is left out.
- Shore
- Countries whose Natural Earth outline contains or comes close to the water's outline; computed, not a statement of ownership.
- Drawing
- Each outline is projected with an equal-area projection centred on its own centroid, so areas stay true and two can be laid over each other.
- Data built
- 2026-11-11