Lakes / New Hampshire / Largest Lakes in New Hampshire

Largest Lakes in New Hampshire

Ranked by surface area, from USGS National Hydrography Dataset 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	Lake Winnipesaukee	Belknap	45,654.45 acres	-
2	Umbagog Lake	Coos	7,642.5 acres	-
3	Squam Lake	Belknap	6,791.2 acres	-
4	Newfound Lake	Grafton	4,451.11 acres	-
5	Lake Winnisquam	Belknap	4,213.89 acres	-
6	Sunapee Lake	Merrimack	4,125.23 acres	-
7	Ossipee Lake	Carroll	4,024.11 acres	-
8	Moore Reservoir	Grafton	3,280.32 acres	-
9	Lake Wentworth	Carroll	3,096.72 acres	-
10	First Connecticut Lake	Coos	3,071.1 acres	-
11	Massabesic Lake	Rockingham	2,560.51 acres	-
12	Lake Francis	Coos	1,933.85 acres	-
13	Conway Lake	Carroll	1,316.08 acres	-
14	Merrymeeting Lake	Strafford	1,233.06 acres	-
15	Mascoma Lake	Grafton	1,155.22 acres	-
16	Bow Lake	Strafford	1,140.17 acres	-
17	Second Connecticut Lake	Coos	1,102.09 acres	-
18	Silver Lake	Carroll	969.39 acres	-
19	Province Lake	Carroll	968.16 acres	-
20	Lake Waukewan	Belknap	927.63 acres	-
21	Pawtuckaway Pond	Rockingham	806.15 acres	-
22	Spofford Lake	Cheshire	732.17 acres	-
23	Nubanusit Lake	Cheshire	717.84 acres	-
24	Highland Lake	Cheshire	696.59 acres	-
25	Northwood Lake	Rockingham	653.47 acres	-
26	Goose Pond	Grafton	624.44 acres	-
27	Webster Lake	Merrimack	606.15 acres	-
28	Pleasant Lake	Merrimack	602.44 acres	-
29	Lake Monomonac	Cheshire	593.55 acres	-
30	Pine River Pond	Carroll	570.32 acres	-
31	Lovell Lake	Carroll	553.76 acres	-
32	Connecticut River Reservoir	Grafton	540.82 acres	-
33	Big Island Pond	Rockingham	531.52 acres	-
34	Little Sunapee Lake	Merrimack	486.06 acres	-
35	Franklin Pierce Lake	Hillsborough	483.34 acres	-
36	Pleasant Lake	Rockingham	478.89 acres	-
37	Hopkinton Lake	Merrimack	465.73 acres	-
38	Little Squam Lake	Grafton	454.18 acres	-
39	Opechee Bay Reservoir	Belknap	448.91 acres	-
40	Dan Hole Pond	Carroll	443.31 acres	-
41	Powder Mill Pond	Hillsborough	419.2 acres	-
42	Lake Massasecum	Merrimack	408.96 acres	-
43	Upper Suncook Lake	Belknap	401.96 acres	-
44	Crystal Lake	Grafton	400.8 acres	-
45	Crystal Lake	Belknap	386.34 acres	-
46	Canobie Lake	Rockingham	375.11 acres	-
47	Ashuelot Pond	Sullivan	367.8 acres	-
48	Penacook Lake	Merrimack	361.76 acres	-
49	Lake Kanasatka	Carroll	358.06 acres	-
50	Surry Mountain Lake	Cheshire	352.76 acres	-
51	Lake Wicwas	Belknap	350.15 acres	-
52	Back Lake	Coos	347.43 acres	-
53	Silver Lake	Cheshire	346.44 acres	-
54	Stinson Lake	Grafton	341.99 acres	-
55	Swains Lake	Strafford	340.84 acres	-
56	Lake Tarleton	Grafton	334.33 acres	-
57	Mirror Lake	Carroll	332.85 acres	-
58	Contoocook Lake	Cheshire	322.97 acres	-
59	Deering Reservoir	Hillsborough	322.72 acres	-
60	Eastman Pond	Sullivan	319.51 acres	-
61	Grafton Pond	Grafton	319.01 acres	-
62	Country Pond	Rockingham	305.92 acres	-
63	Baxter Lake	Strafford	302.21 acres	-
64	Cobbetts Pond	Rockingham	302.21 acres	-
65	Lower Suncook Lake	Belknap	295.08 acres	-
66	White Oak Pond	Grafton	294.8 acres	-
67	Canaan Street Lake	Grafton	290.84 acres	-
68	Halfmoon Lake	Belknap	282.44 acres	-
69	Success Pond	Coos	281.95 acres	-
70	Akers Pond	Coos	276.26 acres	-
71	Milton Pond	Strafford	270.39 acres	-
72	Great Pond	Rockingham	267.86 acres	-
73	Weare Reservoir	Hillsborough	267.62 acres	-
74	Jenness Pond	Rockingham	266.87 acres	-
75	Mendums Pond	Strafford	264.65 acres	-
76	Powwow Pond	Rockingham	256.41 acres	-
77	Sunset Lake	Belknap	252.79 acres	-
78	Thorndike Pond	Cheshire	251.8 acres	-
79	Pemingewasset Lake	Belknap	249.08 acres	-
80	Sunrise Lake	Strafford	246.86 acres	-
81	Kingswood Lake	Carroll	246.61 acres	-
82	Rust Pond	Carroll	239.2 acres	-
83	Arlington Mill Reservoir	Rockingham	237.72 acres	-
84	Dublin Pond	Cheshire	236.48 acres	-
85	Ayers Pond	Strafford	235.74 acres	-
86	Greenough Pond	Coos	234.01 acres	-
87	Mountain Brook Reservoir	Cheshire	233.76 acres	-
88	Chocorua Lake	Carroll	232.85 acres	-
89	Granite Lake	Cheshire	232.53 acres	-
90	Third Connecticut Lake	Coos	230.8 acres	-
91	Baboosic Lake	Hillsborough	228.57 acres	-
92	Lake Winnepocket	Merrimack	228.57 acres	-
93	Hermit Lake	Belknap	219.68 acres	-
94	Bellamy Reservoir	Strafford	211.52 acres	-
95	Highland Lake	Merrimack	206.09 acres	-
96	Walker Pond	Merrimack	204.6 acres	-
97	Pontook Reservoir	Coos	202.53 acres	-
98	Silver Lake	Belknap	202.13 acres	-
99	Gregg Lake	Hillsborough	200.9 acres	-
100	Manning Lake	Belknap	198.92 acres	-

Showing the top 100 of 516 counted lakes. Search above, or browse by county on the New Hampshire page, for the full inventory.

Source: USGS National Hydrography Dataset lake data. Verified October 30, 2026. New lakes are added as their records are verified - rankings update with every addition.