Ramsey Lake

Quality Characteristics

Spring Phosphorus Results
The 2023 spring phosphorus value for Ramsey Lake is 17.9 µg/L. The average total spring phosphorus for Ramsey Lake since 2001 is 10.76 µg/L which is below the Provincial Water Quality Objective of 20.0 µg/L and indicates that this lake is likely oligotrophic or mesotrophic.

For more detailed information, download the graph illustrating the spring phosphorus levels in Ramsey Lake from 2001 to 2023 (PDF 80 KB).

Shoreline Classification Project

For more information on Ramsey Lake shoreline, view the waterfront property map.

What colour is your shoreline?

General Information

Ramsey Lake has 851 permanent residents and 31 seasonal/recreational residents.

Location & Lake Characteristics
Ramsey Lake is located in McKim and Neelon townships. Ramsey Lake is 792.2 hectares in size and has a shoreline perimeter of 34.0 kilometres. The maximum depth is 20.5 metres. View maps of Ramsey Lake.

Watershed Information
Ramsey Lake is located in the Ramsey Watershed. The lake receives drainage from Minnow Lake and several other creeks on the north shore and Laurentian Lake on the south shore. Bethel Lake also occasionally flows into Ramsey Lake during high water periods. Ramsey drains into Lily Creek that connects Robinson and Kelly Lakes, eventually draining into Georgian Bay by way of the Spanish River. Ramsey Lake is used as a source of drinking water for the city and for numerous recreational activities including angling, swimming, sailing, boating, and water skiing.

For more information on the watershed, please click on the following link: Watershed Map.

Lake Stewardship
For information regarding the Ramsey Lake Stewardship Committee, visit their website here.

Biological Characteristics

Fish Species 
View a list of Ramsey Lake's documented fish species.

Aquatic Insects
View a list of aquatic insects documented in Ramsey Lake.

Aquatic Plants
There is currently no data for aquatic plants.