Worcester County Lake Quality

Massachusetts, 24 lakes, average grade B (Good)

There are 24 graded lakes in Worcester County. The mix is varied enough that the county-level average tells you the broad strokes, not the choose-this-cabin specifics. The county-wide average lands at B — solid water quality with most lakes carrying clear summer transparency and low-to-moderate phosphorus.

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. Gaston Pond (A) is the cleanest in the county.

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Quick Answers for Worcester County

Cleanest lakes in Worcester County →Cleanest lakes in Massachusetts →Safest swimming lakes in Massachusetts →

Planning a trip? Check special fishing regulations for Gaston Pond — or check the official Massachusetts fishing regulations.

All Lakes in Worcester County

Rank	Lake	Grade	Clarity	Phosphorus
1	Gaston Pond	A	-	-
2	Bare Hill Pond	A	-	-
3	Queen Lake	A	-	-
4	Wrights Reservoir	A	-	-
5	Quacumquasit Pond	A	-	-
6	Webster Lake	A	-	-
7	Lily Pond	A	-	-
8	Fall Brook Reservoir	A	-	-
9	Crystal Lake	A	-	-
10	Wachusett Lake	A	-	-
11	Fort Pond	A	-	-
12	Lower Crow Hill Pond	A	-	-
13	Sudbury Reservoir	A	-	-
14	Lake Quinsigamond	A	-	-
15	Long Pond	B	-	-
16	Little River Lake	B	-	-
17	Sargent Pond	B	-	-
18	Stodge Meadow Pond	B	-	-
19	East Brimfield Reservoir	C	-	-
20	Muddy Brook Lake	C	-	-
21	Robbins Pond	C	-	-
22	Indian Lake	C	-	-
23	Bartlett Pond	F	-	-
24	Little Chauncy Pond	F	-	-