Map/Lakes/Southern & Central Ontario
Johnston Lake
Surface area
23 ac9 ha
Max depth
32 ft9.8 m
Mean depth
15 ft4.6 m
Water type
Cool-water
Mgmt zone
FMZ 15
Shoreline
1.3 mi2.1 km
Nearest road
0.2 miHARDY HENRY TRAIL
Depth map
Available
Johnston Lake is the 2743rd-largest of 4,097 named lakes in Southern & Central Ontario, with 1.3 miles of charted shoreline. Its 32 ft maximum depth is greater than 45% of depth-surveyed lakes in the region.
Fish species
From MNRF aquatic resource surveys.
Also present: Pumpkinseed, White Sucker
Lodges & operators0
No operators recorded on this lake yet. Know one? It may be listed under a nearby community — browse the map.
Seasons & limitsFMZ 15
| Species | Season | Sport licence | Conservation |
|---|---|---|---|
| Largemouth and Smallmouth Bass or any combination | 4th Sat. in June - Nov. 30 | S - 6 | C - 2 |
| Yellow Perch | Open all year | S - 50 | C - 25 |
Compiled from MNRF Recreational Fishing Regulations open data (2026 season, zone-wide rules shown for this lake's species). Regulations change by variation order — confirm with the official FMZ 15 summary before you fish.
Similar water
Same region, overlapping species, comparable size.
- Bonnechere River5 shared species · 23 ac
- Cain Lake5 shared species · 23 ac
- Bonnechere River5 shared species · 23 ac
- Mug Lake5 shared species · 24 ac
- Bonnechere River5 shared species · 24 ac
Nearby lakes
- Miller Lake0.8 mi · species data
- Boy Lake1.2 mi · species data
- Corfe Lake1.4 mi · species data
- Trout Lake1.3 mi · species data
- Strathdee Lake1.2 mi · species data
- Funston Lake1.9 mi · species data