The population centre comprises the northern settlement of Wollaston Lake, an unincorporated community in the Northern Saskatchewan Administration District, and the adjoining First Nations community of Wollaston Post, the administrative headquarters of the Hatchet Lake Dene First Nation band government.

[4] The population of Wollaston Post (Lac La Hache 220, IR, Saskatchewan) was 1,251 in 2011.

[5] Wollaston Post is the administrative centre of the Hatchet Lake Dene Nation.

[7] Hatchet Lake Dene Nation has one territory (Lac La Hache 220).

Wollaston Lake has a subarctic climate (Dfc) with mild, wet summers and long, severely cold winters.58°06′40″N 103°9′25″W / 58.11111°N 103.15694°W / 58.11111; -103.15694