Pumpkinseed Lakes in Ontario

Government fish surveys have recorded pumpkinseed in 490 Ontario lakes, 21% of the 2,365 lakes in this atlas with sport-fish records.

Lakes: 490
Recorded since 2010: 334
Median size: 2.48 km²
Median max depth: 21 m
Latest record: 2918

Where pumpkinseed 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.

#	Lake	Surveys	Last record	Max depth m	Area km²
1	Bass LakeSimcoe	25 of 25	2012	9	5.49
2	Fairy LakeHalton	48 of 51	2011		0.25
3	Lake CouchichingSimcoe	56 of 60	2013		47.1
4	Lake St. JohnSimcoe	46 of 49	2014	6	6.54
5	Little Basswood LakeAlgoma	27 of 29	2019	10	2.17
6	Island LakeDufferin	133 of 161	2018		1.62
7	Green LakePeel	10 of 10	2006	12	0.13
8	Lake SenecaYork	10 of 10	2004		0.26
9	Sasajewun LakeNipissing	15 of 16	2023		0.39
10	Buckhorn LakePeterborough	45 of 54	2013	12	32.8
11	Sand LakeLeeds and Grenville	21 of 24	2019	14	9.38
12	Katchewanooka LakePeterborough	31 of 37	2014		3.62
13	Grenadier PondToronto	37 of 45	2004	6	0.15
14	West PondToronto	112 of 150	2018		0.17
15	White LakeRenfrew	37 of 46	2014	9	23.8
16	St. George LakeYork	13 of 15	1995		0.1
17	Wilcox LakeYork	36 of 48	2022	16	0.57
18	Ashby LakeLennox and Addington	6 of 6	2012	37	2.61
19	Sparrow LakeMuskoka	33 of 44	2014	12	11.2
20	Little LakeSimcoe	24 of 31	2020	10	4.01
21	Gloucester PoolMuskoka	40 of 55	2014	27	13
22	Isaac LakeBruce	11 of 13	1995		3.25
23	Chemong LakePeterborough	29 of 42	2013	6	17.6
24	Mink LakeRenfrew	13 of 17	2010	12	5.53
25	Heart LakePeel	18 of 25	2018	10	0.17
26	Big Bald LakePeterborough	21 of 30	2013	9	2.13
27	Constant LakeRenfrew	4 of 4	2012	18	5.61
28	Minnow LakeGreater Sudbury / Grand Sudbury	4 of 4			0.21
29	Elbow LakeFrontenac	12 of 16	2012	9	1.29
30	Lower Buckhorn LakePeterborough	32 of 50	2015	11	13.1
31	Big Mountain LakePeterborough	10 of 13	2014		0.35
32	Salmon Trout LakeHastings	13 of 18	2011	12	1.01
33	Claireville ReservoirPeel	14 of 20	2004		0.27
34	Chesley LakeBruce	27 of 43	2014	17	2.08
35	Moira LakeHastings	18 of 27	2010	9	8.53
36	Lake ScugogKawartha Lakes	47 of 80	2014	6	66.4
37	Lake St. FrancisLe Haut-Saint-Laurent	44 of 75	2015		238
38	Farren LakeLanark	12 of 17	2010	21	1.76
39	Little LakeSimcoe	12 of 17	2008	5	2.25
40	Pigeon LakeKawartha Lakes	43 of 75	2013	12	50.7
41	Canal LakeKawartha Lakes	24 of 40	2013	4	8.56
42	Lake DoréRenfrew	16 of 25	2010	21	15.1
43	Sky LakeBruce	11 of 16	1995		3.15
44	Lower Beverley LakeLeeds and Grenville	3 of 3	2918		8.59
45	Loon LakeMuskoka	3 of 3	2019		0.32
46	Malcolm LakeFrontenac	3 of 3	2018		2.16
47	Mosque LakeFrontenac	3 of 3	2014	31	1.55
48	Loon Call LakePeterborough	3 of 3	2012	15	0.93
49	Spiers LakeMuskoka	3 of 3	2007		3.19
50	Mountain LakeGrey	3 of 3	1974		2.48

Top 50 of 490 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.

Pumpkinseed Lakes in Ontario

Where it is found

Where pumpkinseed is most consistently recorded

Other fish in Ontario