Lakes / Colorado / Largest Lakes in Colorado

Largest Lakes in Colorado

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	John Martin Reservoir	Bent	11,686 acres	-
2	Blue Mesa Reservoir	Gunnison	8,944 acres	-
3	Lake Granby	Grand	7,075 acres	-
4	Lake Meredith	Crowley	5,539 acres	-
5	Adobe Creek Reservoir	Bent	4,770 acres	-
6	McPhee Reservoir	Montezuma	4,335 acres	-
7	Riverside Reservoir	Weld	3,633 acres	-
8	Dillon Reservoir	Summit	3,219 acres	-
9	Neenoshe Reservoir	Kiowa	3,167 acres	-
10	Elevenmile Canyon Reservoir	Park	3,112 acres	-
11	North Sterling Reservoir	Logan	2,650 acres	-
12	Vallecito Reservoir	La Plata	2,603 acres	-
13	Empire Reservoir	Weld	2,486 acres	-
14	Jackson Reservoir	Morgan	2,434 acres	-
15	Spinney Mountain Reservoir	Park	2,403 acres	-
16	Pueblo Reservoir	Pueblo	2,326 acres	-
17	Antero Reservoir	Park	2,225 acres	-
18	Horse Creek Reservoir	Otero	2,181 acres	-
19	Twin Lakes	Lake	2,064 acres	-
20	Green Mountain Reservoir	Summit	2,044 acres	-
21	Taylor Park Reservoir	Gunnison	2,038 acres	-
22	Prewitt Reservoir	Washington	1,888 acres	-
23	Bonny Reservoir	Yuma	1,846 acres	-
24	Horsetooth Reservoir	Larimer	1,817 acres	-
25	Turquoise Lake	Lake	1,748 acres	-
26	Barr Lake	Adams	1,724 acres	-
27	Boyd Lake	Larimer	1,623 acres	-
28	Williams Fork Reservoir	Grand	1,549 acres	-
29	Julesburg Reservoir	Sedgwick	1,418 acres	-
30	Chatfield Lake	Jefferson	1,389 acres	-
31	Shadow Mountain Lake	Grand	1,315 acres	-
32	Wolford Mountain Reservoir	Grand	1,283 acres	-
33	Standley Lake	Jefferson	1,221 acres	-
34	Neesopah Reservoir	Kiowa	1,216 acres	-
35	Lake Henry	Crowley	1,196 acres	-
36	Carter Lake Reservoir	Larimer	1,120 acres	-
37	Ruedi Reservoir	Pitkin	1,031 acres	-
38	Steamboat Lake	Routt	968 acres	-
39	Neeskah Reservoir	Kiowa	915 acres	-
40	Cherry Creek Lake	Arapahoe	886 acres	-
41	Cheesman Lake	Jefferson	885 acres	-
42	Milton Reservoir	Weld	857 acres	-
43	Windsor Reservoir	Weld	852 acres	-
44	Rio Grande Reservoir	Hinsdale	809 acres	-
45	Electra Lake	La Plata	804 acres	-
46	San Luis Lake	Alamosa	798 acres	-
47	Trinidad Lake	Las Animas	786 acres	-
48	Morrow Point Reservoir	Gunnison	775 acres	-
49	Walden Reservoir	Jackson	766 acres	-
50	Sanchez Reservoir	Costilla	763 acres	-
51	Two Buttes Reservoir	Baca	757 acres	-
52	Calkins Lake	Weld	749 acres	-
53	Neegronda Reservoir	Kiowa	743 acres	-
54	Aurora Reservoir	Arapahoe	735 acres	-
55	Lake John	Jackson	728 acres	-
56	La Jara Reservoir	Conejos	721 acres	-
57	Lower Latham Reservoir	Weld	717 acres	-
58	Elk Head Reservoir	Moffat	712 acres	-
59	Horse Creek Reservoir	Adams	710 acres	-
60	Cobb Lake	Larimer	685 acres	-
61	Vega Reservoir	Mesa	679 acres	-
62	Smith Reservoir	Costilla	674 acres	-
63	Fossil Creek Reservoir	Larimer	669 acres	-
64	Model Reservoir	Las Animas	662 acres	-
65	Marston Lake	Denver	626 acres	-
66	Robinson Tailings Pond	Summit	619 acres	-
67	Timnath Reservoir	Larimer	611 acres	-
68	Horseshoe Lake	Larimer	608 acres	-
69	Holbrook Reservoir	Otero	550 acres	-
70	Groundhog Reservoir	Dolores	544 acres	-
71	Narraguinnep Reservoir	Montezuma	544 acres	-
72	Boulder Reservoir	Boulder	536 acres	-
73	Santa Maria Reservoir	Mineral	535 acres	-
74	Douglass Lake	Larimer	525 acres	-
75	Lake Catamount	Routt	525 acres	-
76	Saint Charles Reservoir Number 3	Pueblo	512 acres	-
77	Leggett and Hillcrest Reservoir	Boulder	507 acres	-
78	Lemon Reservoir	La Plata	505 acres	-
79	Tenmile Tailings Pond	Summit	504 acres	-
80	Grand Lake	Grand	483 acres	-
81	North Poudre Reservoir Number 6	Larimer	479 acres	-
82	Cove Lake Reservoir	Conejos	476 acres	-
83	Lonetree Reservoir	Larimer	458 acres	-
84	Handy Reservoir	Larimer	456 acres	-
85	Terry Lake	Larimer	456 acres	-
86	Lake Loveland	Larimer	443 acres	-
87	Platoro Reservoir	Conejos	423 acres	-
88	Miramonte Reservoir	San Miguel	417 acres	-
89	Gross Reservoir	Boulder	415 acres	-
90	Bijou Number 2 Reservoir	Morgan	414 acres	-
91	Bee Lake	Larimer	389 acres	-
92	Clear Creek Reservoir	Chaffee	388 acres	-
93	Windsor Reservoir	Larimer	386 acres	-
94	Prospect Reservoir	Weld	379 acres	-
95	Rampart Reservoir	El Paso	378 acres	-
96	Crawford Reservoir	Delta	376 acres	-
97	Mariano Reservoir	Larimer	376 acres	-
98	Continental Reservoir	Hinsdale	374 acres	-
99	Black Hollow Reservoir	Weld	373 acres	-
100	Neeskah Reservoir	Kiowa	364 acres	-

Showing the top 100 of 778 counted lakes. Search above, or browse by county on the Colorado 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.