Lakes in Weld County, Colorado

61 lakes counted in Weld County - the largest is Riverside Reservoir at 3,633 acres.

Lakes Counted

3,633 acres

Largest - Riverside Reservoir

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

All Counted Lakes

#	Lake	County	Surface Area	Max Depth
1	Riverside Reservoir	Weld	3,633 acres	-
2	Empire Reservoir	Weld	2,486 acres	-
3	Milton Reservoir	Weld	857 acres	-
4	Windsor Reservoir	Weld	852 acres	-
5	Calkins Lake	Weld	749 acres	-
6	Lower Latham Reservoir	Weld	717 acres	-
7	Prospect Reservoir	Weld	379 acres	-
8	Black Hollow Reservoir	Weld	373 acres	-
9	Lake Thomas	Weld	175 acres	-
10	Windsor Lake	Weld	169 acres	-
11	Woods Lake	Weld	164 acres	-
12	Lord Reservoir	Weld	154 acres	-
13	Newell Lake	Weld	139 acres	-
14	Foster Reservoir	Weld	137 acres	-
15	Seeley Lake	Weld	126 acres	-
16	Greasewood Lake	Weld	118 acres	-
17	McGrew Reservoir	Weld	116 acres	-
18	Heart Reservoir	Weld	114 acres	-
19	Owl Creek Reservoir	Weld	92 acres	-
20	Long Lake	Weld	84 acres	-
21	Mulligan Reservoir	Weld	84 acres	-
22	Frederick Reservoir	Weld	63 acres	-
23	Loop Lake	Weld	61 acres	-
24	Eaton-Law Reservoir	Weld	59 acres	-
25	Coal Ridge Waste Reservoir	Weld	54 acres	-
26	Thompson Lake	Weld	54 acres	-
27	Howards Lake	Weld	53 acres	-
28	Ireland Reservoir Number Five	Weld	50 acres	-
29	Klug Lake	Weld	50 acres	-
30	Mose Davis Lake	Weld	50 acres	-
31	Antelope Reservoir	Weld	47 acres	-
32	Highland Lake	Weld	47 acres	-
33	Briscoe Lake	Weld	46 acres	-
34	Oklahoma Reservoir	Weld	46 acres	-
35	Adams and Bunker Reservoir Number 3	Weld	44 acres	-
36	Cozzens Lake	Weld	43 acres	-
37	Neff Lake	Weld	43 acres	-
38	Neuman Lake	Weld	43 acres	-
39	Franklin Lake	Weld	39 acres	-
40	Johnstown Reservoir	Weld	38 acres	-
41	Lake Canal Reservoir Number 1	Weld	38 acres	-
42	Dutch Girl Lake	Weld	37 acres	-
43	Lindies Lakes	Weld	37 acres	-
44	Clark Lake	Weld	35 acres	-
45	Sanborn Reservoir	Weld	35 acres	-
46	Drake Lake	Weld	34 acres	-
47	Highland Reservoir Number 3	Weld	34 acres	-
48	Mose Davis Reservoir Number 2	Weld	34 acres	-
49	Adams and Bunker Reservoir Number 1	Weld	33 acres	-
50	Angel Lake	Weld	33 acres	-
51	Little Thompson Reservoir	Weld	33 acres	-
52	Darling Reservoir	Weld	32 acres	-
53	Hummel Reservoir	Weld	32 acres	-
54	Baxter Lake	Weld	31 acres	-
55	Lee Lake	Weld	31 acres	-
56	Hill Lake	Weld	29 acres	-
57	James Lake	Weld	27 acres	-
58	Bidwell Lake	Weld	26 acres	-
59	De France Reservoir	Weld	26 acres	-
60	North Star Reservoir	Weld	25 acres	-
61	Thomas Lake Reservoir	Weld	25 acres	-

Find a Lake in Weld County Largest Lakes

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