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Largemouth Bass Lakes in Ontario

Government fish surveys have recorded largemouth bass in 287 Ontario lakes, 12% of the 2,365 lakes in this atlas with sport-fish records.

Lakes
287
Recorded since 2010
204
Median size
2.04 km²
Median max depth
18 m
Latest record
2024

Where it is found

Most of these lakes are in Frontenac (35), Muskoka (27) and Renfrew (24).

In these lakes the sport fish most often recorded alongside it are pumpkinseed (90%), yellow perch (85%), rock bass (77%) and smallmouth bass (74%).

Seasons, limits and sanctuaries vary by zone: check the Ontario Fishing Regulations Summary before you fish.

Lake ScugogBig Rideau LakeSydenham LakeEugenia LakeGloucester PoolLittle LakeBig Clear LakeCanal LakeJack LakeLake DoréLake GibsonNewboro LakeSharbot LakeMississagagon LakeOtty LakeSalerno LakeShabomeka LakeChesley LakeLake CouchichingSparrow LakePigeon LakeShadow LakeLovesick LakeKennebec LakeSkootamatta LakeBaptiste LakeKahshe LakeMartindale PondLake SimcoeOrr LakeCharleston LakePaudash LakeRice LakeDesert LakeCrotch LakeBelmont LakeMississagua LakeKatchewanooka LakeFarlain LakeCordova LakeFanshawe LakeBig Gull LakeLake CecebeHead LakeLongbow LakeLake VernonBear LakeKamaniskeg LakeLake of the WoodsEels LakeBalsam LakeGolden LakeWeslemkoon LakeBerford LakeDalhousie LakeKashwakamak LakeKashagawigamog LakeLake BelwoodLake ClearLake PanacheAnstruther LakeBark LakeAhmic LakeLake RosseauRedstone LakeLake Nipissing
Lake with a full profileOther lake

Where largemouth bass is most consistently recorded

Ranked by consistency: the lower bound of a 95% confidence interval on the share of the lake’s surveys that found it. A lake where 18 of 20 surveys found it ranks above one where 1 of 1 did. Lakes known only from stocking come last.

#LakeSurveysLast recordMax depth mArea km²
1Christie ReservoirHamilton16 of 1620130.41
2Heart LakePeel23 of 252018100.17
3Lower Rideau LakeLanark12 of 13201912.6
4Buckhorn LakePeterborough40 of 5420131232.8
5Lake SenecaYork9 of 1020040.26
6Wilcox LakeYork35 of 482022160.57
7Warner LakeFrontenac5 of 520220.1
8Dow's LakeOttawa5 of 520180.23
9Lake NiapencoHamilton63 of 9620151.8
10Silver LakeBruce11 of 142012180.59
11Lake St. FrancisLe Haut-Saint-Laurent47 of 752010238
12Upper Mud LakeLanark4 of 420190.37
13Blind LakeHuron4 of 419890.25
14Opinicon LakeLeeds and Grenville116 of 20120198.32
15White LakeRenfrew30 of 462014923.8
16Island LakeDufferin90 of 16120181.62
17Lake ScugogKawartha Lakes46 of 802014666.4
18Hambly LakeFrontenac7 of 920100.72
19Fairy LakeHalton30 of 5120110.25
20Chemong LakePeterborough25 of 422014617.6
21Malcolm LakeFrontenac3 of 320182.16
22Little Bald LakePeterborough3 of 3200972.04
23Bass LakeMuskoka5 of 620160.4
24Rattrays LakeRenfrew5 of 62010140.23
25Mink LakeRenfrew11 of 172010125.53
26Big Rideau LakeLanark60 of 12020199148.1
27Caledon LakePeel13 of 21201080.39
28Grenadier PondToronto24 of 45200460.15
29Balmer LakeRenfrew8 of 1220100.5
30Sand LakeLeeds and Grenville14 of 242019149.38
31Wildwood LakeOxford4 of 520133.5
32Big Bald LakePeterborough16 of 30201392.13
33Mitchell LakeKawartha Lakes5 of 7201322.94
34Sydenham LakeFrontenac15 of 282010347.22
35St. George LakeYork9 of 1519950.1
36Gull LakeLennox and Addington6 of 9201090.21
37Elbow LakeFrontenac2 of 220190.46
38Trout LakeOxford2 of 220162.67
39Joes LakeLanark2 of 220160.6
40Red Chalk LakeMuskoka2 of 220140.57
41Buck LakeMuskoka2 of 220140.81
42Lakelet LakeHuron2 of 219890.44
43Wilber LakeRenfrew2 of 219822.97
44Preston LakeYork2 of 2198050.27
45Ague LakeBruce2 of 219710.48
46Eugenia LakeGrey9 of 162016126.41
47Gloucester PoolMuskoka25 of 5520142713
48Farren LakeLanark9 of 172010211.76
49Little LakeSimcoe9 of 17200852.25
50Little Pike LakeRenfrew5 of 820100.17

Top 50 of 287 lakes. Download the full list (CSV). Source: Ontario’s Aquatic Resource Area survey summaries and fish stocking records (Ministry of Natural Resources, OGL-Ontario). Data as of October 9, 2026. A record means a survey caught or observed the species, not that it is abundant today.

Other fish in Ontario