Late afternoon sun over Slim Lake, scattering a bright path across wind-textured water

Seminole County Lake Quality

Florida, 167 lakes, measured by Florida DEP

Seminole County has 167 monitored lakes, enough that within-county variation matters as much as the county average. Some are deep glacial basins, others are shallow agricultural-watershed waters, and the measurements reflect that mix. 118 of those lakes carry recent nutrient and algae readings. The county-level summary describes that subset, not every water body listed. Most monitored lakes in Seminole County carry favourable nutrient and algae readings for Florida.

The county's lakes lean shallow, which makes the readings sensitive to wind, sediment-resuspension, and any nutrient inputs from the watershed. The cleanest measured lake is Seminole-Secret Lake.

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Quick Answers for Seminole County

Cleanest lakes in Seminole County →Cleanest lakes in Florida →Best swimming lakes in Florida →

Planning a trip? Check special fishing regulations for Seminole-Secret Lake — or check the official Florida fishing regulations.

All Lakes in Seminole County

167 lakes · 118 ranked on readings, 49 without enough sampling118 lakes ranked on readings · 49 without enough sampling, hidden

Include not-rated lakes (49)

#	Lake	Clarity	Phosphorus	Algae	Trophic	Access
1	Seminole-Secret LakeSeminole	4.5 ft	21.5 µg/L	No recent samples	No recent samples	Not recorded
2	Spring LakeSeminole	2.9 ft	19 µg/L	No recent samples	No recent samples	Not recorded
3	Seminole-Spring LakeSeminole	3 ft	24 µg/L	No recent samples	No recent samples	Not recorded
4	Seminole-Little Howell LakeSeminole	5 ft	23 µg/L	No recent samples	No recent samples	Not recorded
5	Bear Gully LakeSeminole	2.6 ft	34 µg/L	No recent samples	No recent samples	Not recorded
6	Seminole-Bear Gully LakeSeminole	3.3 ft	34.5 µg/L	No recent samples	No recent samples	Not recorded
7	Seminole-Clear LakeSeminole	5.3 ft	21 µg/L	No recent samples	No recent samples	Not recorded
8	Seminole-Crystal Bowl LakeSeminole	11 ft	10.5 µg/L	No recent samples	No recent samples	Not recorded
9	Seminole-Silver LakeSeminole	13 ft	12 µg/L	No recent samples	No recent samples	Not recorded
10	Seminole-Cub LakeSeminole	6.9 ft	15 µg/L	No recent samples	No recent samples	Not recorded
11	Seminole-Triplet Middle LakeSeminole	3 ft	29.5 µg/L	No recent samples	No recent samples	Not recorded
12	Seminole-Little Bear LakeSeminole	10 ft	14 µg/L	No recent samples	No recent samples	Not recorded
13	Horseshoe North LakeSeminole	3.9 ft	32 µg/L	No recent samples	No recent samples	Not recorded
14	Mirror LakeSeminole	7.2 ft	20 µg/L	No recent samples	No recent samples	Not recorded
15	Seminole-Little Mary LakeSeminole	7 ft	12 µg/L	No recent samples	No recent samples	Not recorded
16	Buck LakeSeminole	6.1 ft	14 µg/L	No recent samples	No recent samples	Not recorded
17	Seminole-Crescent LakeSeminole	6 ft	14 µg/L	No recent samples	No recent samples	Not recorded
18	Seminole-Triplet South LakeSeminole	3.3 ft	40 µg/L	No recent samples	No recent samples	Not recorded
19	Seminole-Mills LakeSeminole	6.3 ft	17 µg/L	No recent samples	No recent samples	Not recorded
20	Seminole-Lost LakeSeminole	5 ft	17 µg/L	No recent samples	No recent samples	Not recorded
21	Lkannctr LakeSeminole	2.8 ft	21.5 µg/L	No recent samples	No recent samples	Not recorded
22	Seminole-Quail PondSeminole	7 ft	18 µg/L	No recent samples	No recent samples	Not recorded
23	Lake FlorenceSeminole	7.4 ft	15 µg/L	No recent samples	No recent samples	Not recorded
24	Lkflorida LakeSeminole	3.9 ft	42 µg/L	No recent samples	No recent samples	Not recorded
25	Seminole-Bear LakeSeminole	9 ft	14 µg/L	No recent samples	No recent samples	Not recorded
26	Lake MarkhamSeminole	5.8 ft	8 µg/L	No recent samples	No recent samples	Not recorded
27	Seminole-Horseshoe North LakeSeminole	5 ft	20 µg/L	No recent samples	No recent samples	Not recorded
28	Lake YvonneSeminole	3.8 ft	22 µg/L	No recent samples	No recent samples	Not recorded
29	Seminole-Concord LakeSeminole	3 ft	24 µg/L	No recent samples	No recent samples	Not recorded
30	Seminole-Sylvan LakeSeminole	6 ft	19 µg/L	No recent samples	No recent samples	Not recorded
31	Seminole-Wekiva LakeSeminole	7 ft	19 µg/L	No recent samples	No recent samples	Not recorded
32	East Crystal LakeSeminole	6.1 ft	30 µg/L	No recent samples	No recent samples	Not recorded
33	Yankee LakeSeminole	3 ft	7.5 µg/L	No recent samples	No recent samples	Not recorded
34	Seminole-Triplet North LakeSeminole	3.5 ft	26 µg/L	No recent samples	No recent samples	Not recorded
35	Lake BrantleySeminole	9.5 ft	11.5 µg/L	No recent samples	No recent samples	Not recorded
36	Seminole-Mary LakeSeminole	5.5 ft	17 µg/L	No recent samples	No recent samples	Not recorded
37	Lake KathrynSeminole	3 ft	25 µg/L	No recent samples	No recent samples	Not recorded
38	Seminole-Rock LakeSeminole	5 ft	12 µg/L	No recent samples	No recent samples	Not recorded
39	Lake MobileSeminole	5.6 ft	30 µg/L	No recent samples	No recent samples	Not recorded
40	Seminole-Tony LakeSeminole	5.8 ft	14 µg/L	No recent samples	No recent samples	Not recorded
41	Seminole-Brantley LakeSeminole	9 ft	15 µg/L	No recent samples	No recent samples	Not recorded
42	Grace Lake @ CenterSeminole	4.1 ft	42 µg/L	No recent samples	No recent samples	Not recorded
43	Lake GriffinSeminole	5.7 ft	22 µg/L	No recent samples	No recent samples	Not recorded
44	Little Bear LakeSeminole	3.6 ft	10.9 µg/L	No recent samples	No recent samples	Not recorded
45	Amory LakeSeminole	5.6 ft	18 µg/L	No recent samples	No recent samples	Not recorded
46	Prairie LakeSeminole	7.2 ft	16 µg/L	No recent samples	No recent samples	Not recorded
47	South Triplet LakeSeminole	2.2 ft	33 µg/L	No recent samples	No recent samples	Not recorded
48	Kiwanis LakeSeminole	6.9 ft	20 µg/L	No recent samples	No recent samples	Not recorded
49	Garden LakeSeminole	2.8 ft	41.5 µg/L	No recent samples	No recent samples	Not recorded
50	Middle Triplet LakeSeminole	2.7 ft	23 µg/L	No recent samples	No recent samples	Not recorded
51	Pearl LakeSeminole	9.5 ft	15 µg/L	No recent samples	No recent samples	Not recorded
52	Crystal Bowl LakeSeminole	7.5 ft	7 µg/L	No recent samples	No recent samples	Not recorded
53	Lake HayesSeminole	5.1 ft	20.5 µg/L	No recent samples	No recent samples	Not recorded
54	Quail PondSeminole	4.9 ft	12 µg/L	No recent samples	No recent samples	Not recorded
55	Red Bug LakeSeminole	4 ft	19.5 µg/L	No recent samples	No recent samples	Not recorded
56	Grassy LakeSeminole	5.5 ft	15 µg/L	No recent samples	No recent samples	Not recorded
57	Kewanee LakeSeminole	4.8 ft	28 µg/L	No recent samples	No recent samples	Not recorded
58	Bear LakeSeminole	5.9 ft	14 µg/L	No recent samples	No recent samples	Not recorded
59	Lake MarionSeminole	2 ft	38 µg/L	No recent samples	No recent samples	Not recorded
60	Deforest LakeSeminole	3.3 ft	25 µg/L	No recent samples	No recent samples	Not recorded
61	Lake MarieSeminole	3.3 ft	23.5 µg/L	No recent samples	No recent samples	Not recorded
62	Trout LakeSeminole	6.2 ft	13 µg/L	No recent samples	No recent samples	Not recorded
63	Lost LakeSeminole	2.4 ft	23 µg/L	No recent samples	No recent samples	Not recorded
64	North Triplet LakeSeminole	2.8 ft	27 µg/L	No recent samples	No recent samples	Not recorded
65	Lake SeminarySeminole	12.5 ft	13 µg/L	No recent samples	No recent samples	Not recorded
66	Lake AnnSeminole	3.4 ft	29 µg/L	No recent samples	No recent samples	Not recorded
67	Tuskawilla LakeSeminole	6 ft	16 µg/L	No recent samples	No recent samples	Not recorded
68	Lake LotusSeminole	6.3 ft	14 µg/L	No recent samples	No recent samples	Not recorded
69	Cub LakeSeminole	6.1 ft	23.5 µg/L	No recent samples	No recent samples	Not recorded
70	Lake ConcordSeminole	2.1 ft	18 µg/L	No recent samples	No recent samples	Not recorded
71	Sylvan LakeSeminole	5.6 ft	14 µg/L	No recent samples	No recent samples	Not recorded
72	Lake CatherineSeminole	9.2 ft	43 µg/L	No recent samples	No recent samples	Not recorded
73	Lake MillsSeminole	6.4 ft	22 µg/L	No recent samples	No recent samples	Not recorded
74	Lake TonySeminole	6.6 ft	20 µg/L	No recent samples	No recent samples	Not recorded
75	Springwood LakeSeminole	3.8 ft	24 µg/L	No recent samples	No recent samples	Not recorded
76	Secret LakeSeminole	3.7 ft	18 µg/L	No recent samples	No recent samples	Not recorded
77	Fairy LakeSeminole	3.3 ft	24.5 µg/L	No recent samples	No recent samples	Not recorded
78	Seminole-Queens Mirror LakeSeminole	3 ft	41 µg/L	No recent samples	No recent samples	Not recorded
79	Seminole-Rice LakeSeminole	4.8 ft	32 µg/L	No recent samples	No recent samples	Not recorded
80	Seminole-Como LakeSeminole	6.1 ft	21 µg/L	No recent samples	No recent samples	Not recorded
81	Lakalma LakeSeminole	3.3 ft	43 µg/L	No recent samples	No recent samples	Not recorded
82	Lake EllenSeminole	3.8 ft	12 µg/L	No recent samples	No recent samples	Not recorded
83	Lake ProctorSeminole	3.1 ft	19 µg/L	No recent samples	No recent samples	Not recorded
84	Lake BelairSeminole	4.9 ft	9 µg/L	No recent samples	No recent samples	Not recorded
85	Linden LakeSeminole	3.8 ft	22 µg/L	No recent samples	No recent samples	Not recorded
86	Secretlk LakeSeminole	4.6 ft	21 µg/L	No recent samples	No recent samples	Not recorded
87	Greenwood LakeSeminole	No recent samples	29 µg/L	No recent samples	No recent samples	Not recorded
88	Seminole-Springwood LakeSeminole	3.5 ft	26 µg/L	No recent samples	No recent samples	Not recorded
89	Lkmrion LakeSeminole	2 ft	38 µg/L	No recent samples	No recent samples	Not recorded
90	Lkchrm LakeSeminole	3.9 ft	13 µg/L	No recent samples	No recent samples	Not recorded
91	Nonamelk LakeSeminole	3.3 ft	24 µg/L	No recent samples	No recent samples	Not recorded
92	Kiwanis Lake South of CenterSeminole	5.6 ft	8 µg/L	No recent samples	No recent samples	Not recorded
93	Garden Lake OutflowSeminole	No recent samples	34 µg/L	No recent samples	No recent samples	Not recorded
94	Myrtle LakeSeminole	2.8 ft	45 µg/L	No recent samples	No recent samples	Not recorded
95	Lake of the WoodsSeminole	5.6 ft	50 µg/L	No recent samples	No recent samples	Not recorded
96	Deep LakeSeminole	6.9 ft	44 µg/L	No recent samples	No recent samples	Not recorded
97	Seminole-Asher LakeSeminole	3 ft	54 µg/L	No recent samples	No recent samples	Not recorded
98	Adldectr LakeSeminole	2.6 ft	44 µg/L	No recent samples	No recent samples	Not recorded
99	Queens Mirror LakeSeminole	2.4 ft	55 µg/L	No recent samples	No recent samples	Not recorded
100	Lake AsherSeminole	3.9 ft	45.5 µg/L	No recent samples	No recent samples	Not recorded
101	AsherlakeSeminole	2.6 ft	44 µg/L	No recent samples	No recent samples	Not recorded
102	Lake Searcy @ CenterSeminole	2.6 ft	46 µg/L	No recent samples	No recent samples	Not recorded
103	Ow-Ctr LakeSeminole	1.1 ft	49.1 µg/L	No recent samples	No recent samples	Not recorded
104	Lake HowellSeminole	2.6 ft	44 µg/L	No recent samples	No recent samples	Not recorded
105	Beaumont PondSeminole	3.9 ft	52 µg/L	No recent samples	No recent samples	Not recorded
106	Pine LakeSeminole	3.6 ft	48 µg/L	No recent samples	No recent samples	Not recorded
107	Queensmirr LakeSeminole	2.6 ft	52 µg/L	No recent samples	No recent samples	Not recorded
108	Lake MinnieSeminole	2.3 ft	51 µg/L	No recent samples	No recent samples	Not recorded
109	Seminole-East LakeSeminole	3.5 ft	60.5 µg/L	No recent samples	No recent samples	Not recorded
110	Seminole-Jesup North LakeSeminole	1 ft	90 µg/L	No recent samples	No recent samples	Not recorded
111	Lkminnie LakeSeminole	2.3 ft	63.5 µg/L	No recent samples	No recent samples	Not recorded
112	Lklotuscen LakeSeminole	2.6 ft	85 µg/L	No recent samples	No recent samples	Not recorded
113	Lake DotSeminole	1.6 ft	60 µg/L	No recent samples	No recent samples	Not recorded
114	Dewdrop PoolSeminole	1.3 ft	65 µg/L	No recent samples	No recent samples	Not recorded
115	Seminole-Howell LakeSeminole	2 ft	100 µg/L	No recent samples	No recent samples	Not recorded
116	Sweetwater Cove LakeSeminole	No recent samples	145.5 µg/L	No recent samples	No recent samples	Not recorded
117	Sweetwater Cove @ Riverbend Blvd LakeSeminole	No recent samples	132.5 µg/L	No recent samples	No recent samples	Not recorded
118	Sweetwater Creek LakeSeminole	No recent samples	106 µg/L	No recent samples	No recent samples	Not recorded
	Seminole-Orienta North LakeSeminole	4.8 ft	21 µg/L	No recent samples	No recent samples	Not recorded
	Seminole-Orienta East LakeSeminole	2.9 ft	30 µg/L	No recent samples	No recent samples	Not recorded
	Lake Grace @ Se CornerSeminole	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Twin LakesSeminole	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Seminole-Wildmere LakeSeminole	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Seminole-West Crystal LakeSeminole	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Seminole-Charm LakeSeminole	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Unnamedsem LakeSeminole	3.6 ft	12 µg/L	No recent samples	No recent samples	Not recorded
	Lake GenevaSeminole	4.1 ft	55.5 µg/L	No recent samples	No recent samples	Not recorded
	Griffinctr LakeSeminole	7.4 ft	15.5 µg/L	No recent samples	No recent samples	Not recorded
	Triplet LakeSeminole	3 ft	28 µg/L	No recent samples	No recent samples	Not recorded
	Lkjane LakeSeminole	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	East Crystal Lake @ CenterSeminole	4.9 ft	23 µg/L	No recent samples	No recent samples	Not recorded
	Wood LakeSeminole	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Bearlk LakeSeminole	7.2 ft	13 µg/L	No recent samples	No recent samples	Not recorded
	Bcklk LakeSeminole	6.6 ft	13 µg/L	No recent samples	No recent samples	Not recorded
	Lake Florence S of CenterSeminole	5.9 ft	16 µg/L	No recent samples	No recent samples	Not recorded
	MrrlakeSeminole	11.5 ft	13 µg/L	No recent samples	No recent samples	Not recorded
	Brgully LakeSeminole	1.6 ft	34 µg/L	No recent samples	No recent samples	Not recorded
	Seminole-Horseshoe LakeSeminole	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	PairielakeSeminole	7.5 ft	14 µg/L	No recent samples	No recent samples	Not recorded
	Seminole-Onora LakeSeminole	6.8 ft	20.5 µg/L	No recent samples	No recent samples	Not recorded
	Wilmerelk LakeSeminole	8.9 ft	12 µg/L	No recent samples	No recent samples	Not recorded
	Lkwoods LakeSeminole	3 ft	32 µg/L	No recent samples	No recent samples	Not recorded
	Ltllkhwl LakeSeminole	3.6 ft	17 µg/L	No recent samples	No recent samples	Not recorded
	LakehwellSeminole	2.6 ft	73 µg/L	No recent samples	No recent samples	Not recorded
	Chari LakeSeminole	0.3 ft	No recent samples	No recent samples	No recent samples	Not recorded
	Lkeharney LakeSeminole	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Grdnlk LakeSeminole	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Rice LakeSeminole	3.9 ft	No recent samples	No recent samples	No recent samples	Not recorded
	Lkbrkett LakeSeminole	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	East LakeSeminole	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Garden Lake CentroidSeminole	3 ft	No recent samples	No recent samples	No recent samples	Not recorded
	West LakeSeminole	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Lake MyrtleSeminole	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Cranes RoostSeminole	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Lake IrishSeminole	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Twin LakesSeminole	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Island LakeSeminole	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Lake MariettaSeminole	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Lake AdaSeminole	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Lake JennieSeminole	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Golden LakeSeminole	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Mullet LakeSeminole	No recent samples	No recent samples	No recent samples	No recent samples	✓ Public
	Puzzle LakeSeminole	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Taylor LakeSeminole	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Long LakeSeminole	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Island PondSeminole	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Long LakeSeminole	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded

NR = no nutrient or algae reading on record. The measurements are published as the authority reports them. Where the data comes from.

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Source: the Florida Department of Environmental Protection. See data sources.