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

Colorado, 15 lakes, average grade A (Excellent)

There are 15 monitored lakes in Pueblo County. The mix is varied enough that the county-level average tells you the broad strokes, not the choose-this-cabin specifics. 1 of those lake carry an A–F grade. The county-level summary describes that subset, not every water body listed. On average, Pueblo County lakes grade an A. That puts it near the top of the Colorado county ranking.

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. Pueblo Reservoir (A) is the cleanest in the county.

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Top-rated places to stay near Pueblo County

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All Lakes in Pueblo County

15 lakes · 1 graded, 14 not rated1 graded lake · 14 not rated, hidden

#LakeGradeClarityPhosphorusAlgaeTrophicAccess
1APueblo ReservoirPuebloA6.5 ft15 µg/L4.9 µg/LNo recent samples✓ Public
NRTeller ReservoirPuebloNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRNorth Mills Clarifying PondPuebloNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRLake MinnequaPuebloNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRComanche ReservoirPuebloNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRHuerfano LakePuebloNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRVertrees ReservoirPuebloNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRBeckwith ReservoirPuebloNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRStauder ReservoirPuebloNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRRed Top ReservoirPuebloNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRDry LakePuebloNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRDotson and Enlargement ReservoirPuebloNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRHungerford LakePuebloNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRHardesty ReservoirPuebloNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRLa Pear PondPuebloNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded

NR = not rated: there is not enough recent sampling to support a letter. That is EPA Integrated Reporting Category 3 (insufficient information), not a failing grade. How grading works.

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See how Pueblo County stacks up in the national county water-quality rankings, or browse the full directory of graded lakes across all United States (49 states), Canada (Ontario and Québec), and 38 other country hubs..

Source: EPA National Aquatic Resource Surveys, 2026.