Morgan County Lake Quality

Missouri, 38 lakes, average grade C (Fair)

There are 38 graded lakes in Morgan County. The mix is varied enough that the county-level average tells you the broad strokes, not the choose-this-cabin specifics. Morgan County averages to a C. The distribution behind that average matters more than the letter: a few stressed lakes versus many decent ones can produce the same average as the inverse.

Most of the county's monitored lakes are shallow — under 50 feet — which means wind keeps the water column mixed all summer and sediment-bound phosphorus releases back into the surface layer whenever the bottom is disturbed. Crystal-Morgan Lake (B) is the cleanest in the county.

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Quick Answers for Morgan County

Cleanest lakes in Morgan County →Cleanest lakes in Missouri →Safest swimming lakes in Missouri →

Planning a trip? Check special fishing regulations for Crystal-Morgan Lake — or check the official Missouri fishing regulations.

All Lakes in Morgan County

Rank	Lake	Grade	Clarity	Phosphorus
1	Crystal-Morgan Lake	B	6.2 ft	15.5 µg/L
2	Loto Confluence of Gravois And Indian Creek Lake	B	7.5 ft	18 µg/L
3	Loto Lake	B	7.5 ft	18 µg/L
4	Loto Lake	B	8 ft	18 µg/L
5	Loto Lake	C	5.3 ft	24 µg/L
6	Loto Lake	C	5.6 ft	21 µg/L
7	Loto Lake	C	4.9 ft	18 µg/L
8	Loto Lake	C	4.5 ft	23 µg/L
9	Loto Lake	C	5.6 ft	25 µg/L
10	Loto Lake	C	6.2 ft	23 µg/L
11	Loto Lake	C	4.1 ft	22 µg/L
12	Loto Lake	C	4.2 ft	27 µg/L
13	Loto Lake	C	5 ft	24 µg/L
14	Loto Lake	D	1.3 ft	61.5 µg/L
15	Loto Lake	D	3 ft	43 µg/L