Lakes / Ohio / Largest Lakes in Ohio

Largest Lakes in Ohio

Ranked by surface area, from Ohio DNR lake data. Flowages and reservoirs count here - size is size - and each is labeled in its own record.

#	Lake	County	Surface Area	Max Depth
1	Grand Lake St. Marys	Mercer	13,356 acres	14 ft
2	Mosquito Creek Lake	Trumbull	7,212 acres	24 ft
3	Indian Lake	Logan	5,161 acres	12 ft
4	Seneca Lake	Noble	3,550 acres	21 ft
5	Berlin Lake	Portage	3,344 acres	60 ft
6	Alum Creek Lake	Delaware	3,331 acres	60 ft
7	Pymatuning Lake	Ashtabula	3,255 acres	30 ft
8	Salt Fork Lake	Guernsey	3,060 acres	35 ft
9	Hoover Reservoir	Delaware	2,883 acres	60 ft
10	Buckeye Lake	Fairfield	2,877 acres	14 ft
11	Caesar Creek Lake	Warren	2,806 acres	110 ft
12	Crane Lake	Licking	2,757.2 acres	None
13	Michael J Kirwan Reservoir	Portage	2,604.7 acres	None
14	Piedmont Lake	Belmont	2,377 acres	30 ft
15	Tappan Lake	Harrison	2,284 acres	27 ft
16	East Fork Lake	Clermont	2,107 acres	100 ft
17	Meander Creek Reservoir	Mahoning	2,053 acres	None
18	C.J. Brown Reservoir	Clark	1,969 acres	35 ft
19	Rocky Fork Lake	Highland	1,953 acres	42 ft
20	Clendening Lake	Harrison	1,732 acres	35 ft
21	Lake Milton	Mahoning	1,695 acres	33 ft
22	Atwood Lake	Carroll	1,564 acres	33 ft
23	La Due Reservoir	Geauga	1,480 acres	24 ft
24	Charles Mill Lake	Ashland	1,347 acres	27 ft
25	Deer Creek Lake	Pickaway	1,301 acres	35 ft
26	Dillon Lake	Muskingum	1,279 acres	30 ft
27	Delaware Lake	Delaware	1,215 acres	30 ft
28	Paint Creek Lake	Ross	1,177 acres	40 ft
29	Mogadore Reservoir	Portage	1,105 acres	24 ft
30	Clear Fork Reservoir	Morrow	1,034 acres	24 ft
31	Leesville Lake	Carroll	1,012 acres	40 ft
32	O'Shaughnessy Reservoir	Delaware	896 acres	40 ft
33	Lake Loramie	Shelby	870 acres	8 ft
34	Pleasant Hill Lake	Richland	821 acres	None
35	Pleasant Hill Reservoir	Richland	784 acres	35 ft
36	Nimisila Reservoir	Summit	784 acres	None
37	Nimisila Lake	Summit	743 acres	30 ft
38	Cowan Lake	Clinton	695 acres	35 ft
39	Burr Oak Lake	Morgan	668 acres	35 ft
40	Killdeer Wildlife Pond Number Three	Wyandot	654 acres	None
41	Findlay Reservoirs #2	Hancock	645 acres	26 ft
42	Lake Rockwell	Portage	620 acres	None
43	Acton Lake	Preble	592 acres	30 ft
44	Bresler Reservoir	Allen	583 acres	40 ft
45	Evans Lake	Mahoning	567 acres	None
46	Lake Mohawk	Carroll	503 acres	None
47	Apple Valley Lake	Knox	494 acres	None
48	Knox Lake	Knox	491 acres	24 ft
49	Lake Roaming Rock	Ashtabula	485 acres	None
50	Pine Lake	Mahoning	482 acres	None
51	Portage Lakes	Summit	474 acres	60 ft
52	Rex Lake	Summit	454 acres	None
53	Wingfoot Lake	Portage	445 acres	15 ft
54	Williams Reservoir	Allen	426 acres	54 ft
55	East Branch Reservoir	Geauga	403 acres	18 ft
56	Kiser Lake	Champaign	394 acres	12 ft
57	Griggs Reservoir	Franklin	387 acres	21 ft
58	Wills Creek	Muskingum	375 acres	12 ft
59	Aurora Pond	Portage	365 acres	None
60	Guilford Lake	Columbiana	361 acres	24 ft
61	The Bogs	Sandusky	343.7 acres	None
62	Chippewa Lake	Medina	340 acres	None
63	Deer Creek Reservoir	Stark	334 acres	18 ft
64	Lake Logan	Hocking	333 acres	18 ft
65	Lake White	Pike	333 acres	24 ft
66	Lake Rupert	Vinton	327 acres	24 ft
67	Ferguson Reservoirs	Allen	308 acres	33 ft
68	Ferguson Reservoir	Allen	307 acres	None
69	Springfield Lake	Summit	291 acres	27 ft
70	Rush Creek Lake	Fairfield	289 acres	27 ft
71	Choctaw Lake	Madison	282 acres	None
72	Lake Waynoka	Brown	280 acres	None
73	Jackson Lake	Jackson	252 acres	12 ft
74	Lake Seneca	Williams	251 acres	None
75	Muzzys Lake	Champaign	247 acres	None
76	Killdeer Reservoir	Wyandot	241 acres	24 ft
77	Walborn Reservoir	Stark	234.5 acres	None
78	Holiday Lake	Huron	225 acres	None
79	Long Lake	Summit	224 acres	35 ft
80	Congress Lake	Stark	216 acres	None
81	New London Reservoir	Huron	212 acres	33 ft
82	Wolf Creek Pond	Lucas	210.8 acres	None
83	Long Lake Channel	Summit	210 acres	None
84	Wolf Run Lake	Noble	208 acres	51 ft
85	Willard Reservoir	Huron	199 acres	45 ft
86	Lake Lorelei	Brown	195 acres	None
87	Shawnee Lake	Greene	192 acres	None
88	Lake Lakengren	Preble	191.5 acres	None
89	Muddy Lake	Portage	191.5 acres	None
90	Lake Hodgson	Portage	190 acres	None
91	Highlandtown Lake	Columbiana	188 acres	27 ft
92	Candlewood Lake	Morrow	187 acres	None
93	Findlay Reservoirs #1	Hancock	186 acres	22 ft
94	Grant Lake	Brown	185 acres	None
95	Tycoon Lake	Gallia	183 acres	18 ft
96	Barberton Reservoir	Summit	182 acres	None
97	Highlandtown Reservoir	Columbiana	181 acres	None
98	Winton Lake	Hamilton	175 acres	None
99	Upper Girard Lake	Trumbull	174.2 acres	None
100	North Lake	Summit	164 acres	30 ft

Showing the top 100 of 352 counted lakes. Search above, or browse by county on the Ohio page, for the full inventory.

Source: Ohio DNR lake data. Verified October 28, 2026. New lakes are added as their records are verified - rankings update with every addition.