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

Orleans County Lake Quality

Vermont, 39 lakes, measured by Vermont DEC

There are 39 monitored lakes in Orleans County. The mix is varied enough that the county-level average tells you the broad strokes, not the choose-this-cabin specifics. 16 of those lakes carry recent nutrient and algae readings. The county-level summary describes that subset, not every water body listed. The county-wide picture is low-to-moderate phosphorus with clear summer transparency across most monitored lakes.

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 Caspian Lake.

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Quick Answers for Orleans County

Cleanest lakes in Orleans County →Cleanest lakes in Vermont →Best swimming lakes in Vermont →

Planning a trip? Check special fishing regulations for Caspian Lake — or check the official Vermont fishing regulations.

All Lakes in Orleans County

39 lakes · 16 ranked on readings, 23 without enough sampling16 lakes ranked on readings · 23 without enough sampling, hidden

Include not-rated lakes (23)

#	Lake	Clarity	Phosphorus	Algae	Trophic	Access
1	Caspian LakeOrleans	29.5 ft	7.8 µg/L	1.3 µg/L	No recent samples	Not recorded
2	Seymour LakeOrleans	24.6 ft	7.8 µg/L	1.3 µg/L	No recent samples	✓ Public
3	Echo LakeOrleans	23 ft	8 µg/L	1.6 µg/L	No recent samples	✓ Public
4	Lake WilloughbyOrleans	28.2 ft	7.8 µg/L	1.6 µg/L	No recent samples	✓ Public
5	Shadow LakeOrleans	28.9 ft	8.3 µg/L	1.4 µg/L	No recent samples	✓ Public
6	Lake SalemOrleans	13.1 ft	14.8 µg/L	2.6 µg/L	No recent samples	✓ Public
7	Holland PondOrleans	7.9 ft	10.4 µg/L	4.5 µg/L	No recent samples	✓ Public
8	Lake ParkerOrleans	13.1 ft	15.7 µg/L	4.2 µg/L	No recent samples	✓ Public
9	Lake ElligoOrleans	26.2 ft	6.8 µg/L	1.1 µg/L	No recent samples	✓ Public
10	Clyde PondOrleans	9.4 ft	14.7 µg/L	2.7 µg/L	No recent samples	Not recorded
11	Little Hosmer PondOrleans	No recent samples	9.2 µg/L	2.4 µg/L	No recent samples	✓ Public
12	South Bay LakeOrleans	4.4 ft	22.7 µg/L	6 µg/L	No recent samples	✓ Public
13	Lake MemphremagogOrleans	10.5 ft	16.4 µg/L	5.5 µg/L	No recent samples	✓ Public
14	Long PondOrleans	14.2 ft	19.3 µg/L	7.2 µg/L	No recent samples	Not recorded
15	Great Hosmer PondOrleans	20.3 ft	21.5 µg/L	3.9 µg/L	No recent samples	✓ Public
16	Bald Hill PondOrleans	13.1 ft	10.6 µg/L	8.1 µg/L	No recent samples	✓ Public
	Brownington PondOrleans	8.5 ft	No recent samples	No recent samples	No recent samples	✓ Public
	Long PondOrleans	No recent samples	No recent samples	No recent samples	No recent samples	✓ Public
	Crystal LakeOrleans	19.4 ft	5.4 µg/L	0.9 µg/L	No recent samples	✓ Public
	Round PondOrleans	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Pensioner PondOrleans	No recent samples	No recent samples	No recent samples	No recent samples	✓ Public
	Beaver Pond OutletOrleans	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Jobs PondOrleans	No recent samples	No recent samples	No recent samples	No recent samples	✓ Public
	Horse PondOrleans	No recent samples	No recent samples	No recent samples	No recent samples	✓ Public
	Tildys PondOrleans	No recent samples	No recent samples	No recent samples	No recent samples	✓ Public
	Daniels PondOrleans	No recent samples	No recent samples	No recent samples	No recent samples	✓ Public
	Baker PondOrleans	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Lake DerbyOrleans	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Walker PondOrleans	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	May PondOrleans	No recent samples	No recent samples	No recent samples	No recent samples	✓ Public
	Pensioner PondOrleans	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Toad PondOrleans	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Turtle PondOrleans	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Mud PondOrleans	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Charleston PondOrleans	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Lake DerbyOrleans	No recent samples	No recent samples	No recent samples	No recent samples	✓ Public
	Great Hosmer PondOrleans	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Mud PondOrleans	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	McAllister PondOrleans	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 Vermont Department of Environmental Conservation. See data sources.