It is located about 6 km north-northwest of urban Stouffville, and is part of the Greater Toronto Area.

The area around Musselman's Lake feeds a small tributary to the East Holland River, which flows to the west.

[4] A variety of fish[5] have been found in the lake including: The area was first settled 1807 by Peter and Jacob Musselman (not related to settler of Floradale, Ontario), who were Mennonites from Pennsylvania.

[6] The Musselman established as steam saw mill on the west side of the lake on land later acquired by William Osborn.

[10] Virtually all of the water front in the community of Musselman's Lake is private residential property.

Docks along the lake are all private with Cedar Beach Park open to the paying public but not for daily visitors.

While the resources of all levels of government are used for the regulation, protection and preservation of the lake, the entire perimeter of the lake is currently in a few private hands, and homeowners and business alone benefit from exclusive access rights to one of Whitchurch-Stouffville's most significant natural and recreational assets.