Four Mile Lake is located in the Kawartha Lakes region in South Central Ontario. The lake is 7.86 square kilometers in surface area. It is a short drive to the village of Coboconk to the West and the settlement of Burnt River to the East. The lake has an average depth of 8.8 meters and is approximately 19 meters at its deepest point.

Is is a closed lake with no water access to any other lakes. The Lake holds approximately 450 cottages and homes and are accessed by four private roads maintained by the property owners. There is a public boat launch and boat traffic is moderate on the lake. Numerous species of fish can be found in the lake, including brown bullhead, lake herring, largemouth bass, muskellunge, pumpkinseed, rock bass, smallmouth bass, white sucker, yellow perch, and walleye.

Four Mile Lake is approximately 2 hours by car from Toronto and slightly over an hour drive to Peterborough.

Four Mile Lake Association is the cottage owners association for the lake.