Lakes / Oregon / Klamath County

Lakes in Klamath County, Oregon

83 lakes counted in Klamath County - the largest is Upper Klamath Lake at 62,095 acres.

Lakes Counted

62,095 acres

Largest - Upper Klamath Lake

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

All Counted Lakes

#	Lake	County	Surface Area	Max Depth
1	Upper Klamath Lake	Klamath	62,095 acres	-
2	Crater Lake	Klamath	13,211 acres	-
3	Agency Lake	Klamath	10,319 acres	-
4	Crescent Lake	Klamath	3,824 acres	-
5	Gerber Reservoir	Klamath	3,812 acres	-
6	Aspen Lake	Klamath	3,564 acres	-
7	Odell Lake	Klamath	3,416 acres	-
8	Lake of the Woods	Klamath	1,228 acres	-
9	Alkali Lake	Klamath	741 acres	-
10	Swan Lake	Klamath	734 acres	-
11	Summit Lake	Klamath	692 acres	-
12	Fourmile Lake	Klamath	626 acres	-
13	Willow Valley Reservoir	Klamath	543 acres	-
14	Miller Lake	Klamath	519 acres	-
15	Spring Lake	Klamath	375 acres	-
16	Lake Ewauna	Klamath	371 acres	-
17	Round Valley Reservoir	Klamath	311 acres	-
18	Whiteline Reservoir	Klamath	288 acres	-
19	Wild Billy Lake	Klamath	231 acres	-
20	Hawks Lake	Klamath	224 acres	-
21	Campbell Reservoir	Klamath	207 acres	-
22	Lost River Pool	Klamath	204 acres	-
23	John C Boyle Reservoir	Klamath	184 acres	-
24	Big Adobe Reservoir	Klamath	151 acres	-
25	Antelope Reservoir	Klamath	150 acres	-
26	Nuss Lake	Klamath	145 acres	-
27	Threemile Reservoir	Klamath	130 acres	-
28	Long Lake	Klamath	127 acres	-
29	Riddle Field	Klamath	126 acres	-
30	Smokey Lake	Klamath	126 acres	-
31	Harpold Reservoir	Klamath	122 acres	-
32	Muckney Lake	Klamath	122 acres	-
33	Horton Reservoir	Klamath	105 acres	-
34	Smith Reservoir	Klamath	105 acres	-
35	McCoy Reservoir	Klamath	96 acres	-
36	Short Lake	Klamath	95 acres	-
37	Devil Lake	Klamath	94 acres	-
38	Round Lake	Klamath	93 acres	-
39	Grohs Reservoir	Klamath	85 acres	-
40	Oatman Lake	Klamath	85 acres	-
41	Meadow Lake	Klamath	80 acres	-
42	Copeland Reservoir	Klamath	78 acres	-
43	Mallory Reservoir	Klamath	74 acres	-
44	Little Fishhole Flat Reservoir	Klamath	72 acres	-
45	Obenchain Reservoir	Klamath	71 acres	-
46	Pope Reservoir	Klamath	66 acres	-
47	DeVaul Lake	Klamath	65 acres	-
48	Wilson Lake	Klamath	59 acres	-
49	Boggs Lake	Klamath	57 acres	-
50	Millhayes Meadow	Klamath	54 acres	-
51	Pankey Lake	Klamath	51 acres	-
52	Randall Reservoir	Klamath	51 acres	-
53	Abraham Flat	Klamath	50 acres	-
54	Upper Midway Reservoir	Klamath	49 acres	-
55	Noble Reservoir Number One	Klamath	48 acres	-
56	Dog Hollow Reservoir	Klamath	45 acres	-
57	Island Lake	Klamath	45 acres	-
58	Gordon Lake	Klamath	44 acres	-
59	Bumphead Reservoir	Klamath	43 acres	-
60	Fawn Lake	Klamath	40 acres	-
61	Tull Reservoir	Klamath	40 acres	-
62	Gilchrist Log Pond	Klamath	39 acres	-
63	Long Lake	Klamath	38 acres	-
64	Lower Rosary Lake	Klamath	37 acres	-
65	Captain Jack Lake	Klamath	36 acres	-
66	Lake Harriette	Klamath	36 acres	-
67	Dry Lake	Klamath	35 acres	-
68	O'Connors Puddle Reservoir	Klamath	34 acres	-
69	Worden Reservoir	Klamath	34 acres	-
70	Buck Lake	Klamath	31 acres	-
71	Gerber Lower Division Reservoir	Klamath	31 acres	-
72	Lone Pine Reservoir	Klamath	31 acres	-
73	Twenty One Reservoir	Klamath	30 acres	-
74	Hyde Reservoir	Klamath	29 acres	-
75	Lost Lake	Klamath	29 acres	-
76	Middle Lake	Klamath	29 acres	-
77	Oldenburg Lake	Klamath	29 acres	-
78	Red Lake	Klamath	29 acres	-
79	West Swan Lake	Klamath	29 acres	-
80	Yoran Lake	Klamath	28 acres	-
81	Worlow Reservoir	Klamath	27 acres	-
82	Keno Reservoir	Klamath	26 acres	-
83	Grass Lake	Klamath	25 acres	-

Find a Lake in Klamath County Largest Lakes

Sources: USGS National Hydrography Dataset lake data; USGS. Verified October 30, 2026.