Where is Lake Powell?

Lake Powell is a lake in Garfield County, Utah. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.

Lake Powell

Not yet rated

655 acres

Lake Powell in Garfield County, Utah is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 655 acres.

Area: 655 acres

Where to stay →Safe to swim?

Next lake in Garfield County

BLake Powell Goodhope Bay Midchannel6.1 ft clear · Garfield CountyView →

PrevWide Hollow Reservoir Where to stay NextLake Powell Goodhope Bay Midchannel

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Why Lake Powell has no grade

We grade a lake only when the monitoring record supports a letter: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Lake Powell, no water-quality sampling on record for this lake.

Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.

Sampling is run by Utah DWQ and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.

Lake Powell is a 655-acre lake in Garfield County, Utah.

Source: EPA Water Quality Portal sampling records, Utah DWQ, last sampled recent years. Grade methodology: LakeQuality methodology.

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Swimming Safety

Not rated

Elevated nutrients

Not rated for swimming — there is not enough monitoring data to judge this lake

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Water quality measurements for Lake Powell

These readings exist but are not enough for an A–F grade — see why.

No clarity data. Trophic State Index: undefined.

Metric	Value	Grade
Water Clarity (Secchi Depth)	No recent samples
Phosphorus	No recent samples
Chlorophyll-a (Algae)	No recent samples
Trophic State Index (TSI)

Where to stay near Lake Powell

Compare lakeside cabins, hotels, and vacation rentals near Lake Powell in Garfield County, Utah — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.

Top-rated places to stay near Lake Powell

Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.

Planning a whole trip? See where to stay at Utah’s top lakes →

Lake Details

Characteristic	Value
Surface Area	655 acres

No bathymetric survey has been published for Lake Powell, so its depth is not documented here.

Fishing Lake Powell

→ Lake Powell fishing regulations (limits, seasons, special rules)

Nearby Lakes in Garfield County

BLake Powell Goodhope Bay Midchannel6.1 ft clear · EutrophicView →DLower Bowns Reservoir9.2 ft clear · EutrophicView →NRSpectacle LakeView →NRMcGath LakeView →AWide Hollow Reservoir13.8 ft clear · MesotrophicView →NRRoundy ReservoirView →

Frequently asked questions about Lake Powell

Where is Lake Powell?: Lake Powell is a lake in Garfield County, Utah. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.
What is the water quality grade for Lake Powell?: Lake Powell in Garfield County, Utah is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 655 acres.
Is Lake Powell safe to swim in?: Not rated for swimming — there is not enough monitoring data to judge this lake. Lake Powell is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.