Lakes / New York / Jefferson County

Lakes in Jefferson County, New York

30 lakes counted in Jefferson County - the largest is Lake Ontario at 4,656,925 acres.

Lakes Counted

4,656,925 acres

Largest - Lake Ontario

90 ft

Deepest - Sixberry Lake

Jefferson County, highlighted, with its largest counted lakes dotted. Outlines from Census boundary data.

All Counted Lakes

#	Lake	County	Surface Area	Max Depth
1	Lake Ontario	Jefferson	4,656,925 acres	-
2	Butterfield Lake	Jefferson	962 acres	50 ft
3	Perch Lake	Jefferson	906 acres	-
4	Perch Lake	Jefferson	550 acres	-
5	Millsite Lake	Jefferson	469 acres	75 ft
6	Red Lake	Jefferson	366 acres	47 ft
7	Perch Lake	Jefferson	366 acres	-
8	Grass Lake	Jefferson	341 acres	-
9	Muskellunge Lake	Jefferson	286 acres	-
10	Moon Lake	Jefferson	243 acres	20 ft
11	Mud Lake	Jefferson	220 acres	-
12	Lakeview Pond	Jefferson	197 acres	-
13	Hyde Lake	Jefferson	179 acres	25 ft
14	Crystal Lake	Jefferson	178 acres	-
15	Lake of the Woods	Jefferson	172 acres	80 ft
16	Payne Lake	Jefferson	168 acres	-
17	Clear Lake	Jefferson	166 acres	-
18	Pleasant Lake	Jefferson	143 acres	-
19	Henderson Pond	Jefferson	132 acres	-
20	Sixberry Lake	Jefferson	123 acres	90 ft
21	South Colwell Pond	Jefferson	102 acres	8 ft
22	Floodwood Pond	Jefferson	99 acres	-
23	Crystal Lake	Jefferson	96 acres	-
24	Lucky Star Lake	Jefferson	90 acres	-
25	North Colwell Pond	Jefferson	69 acres	-
26	Cranberry Pond	Jefferson	52 acres	-
27	Goose Pond	Jefferson	36 acres	-
28	Rutland Lake	Jefferson	32 acres	-
29	Dority Pond	Jefferson	30 acres	-
30	Black Pond	Jefferson	25 acres	-

Sources: New York State DEC lake data; USGS. Verified October 30, 2026.