Where is Rainbow Lake?

Rainbow Lake is a lake in Matanuska-Susitna County, Alaska. Its water-quality measurements are published by Alaska DEC and shown on this page as reported.

How deep is Rainbow Lake?

Rainbow Lake has a maximum depth of 45 feet. The lake covers 152 acres.

Rainbow Lake

Matanuska-Susitna County, Alaska152 acresView map Directions

No nutrient or algae sampling on record from Alaska DEC for this lake.

Max depth

45 ft

Bathymetric survey

Area

152 acres

Surface area

45 ft max depth

See the measurements Directions Where to stay

Rainbow Lake in Matanuska-Susitna County, Alaska has water-quality measurements published by Alaska DEC, shown here as reported. Maximum depth: 45 ft. Surface area: 152 acres.

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Rainbow Lake is a 152-acre lake in Matanuska-Susitna County, Alaska with a maximum depth of 45 feet.

Source: EPA Water Quality Portal sampling records, your state environmental agency. Methodology: how these readings are compared.

What Rainbow Lake is good for

From access and monitoring records, not editorial picks.

Deep water45 ft surveyed max depth

Swimming conditions

No reading

Not rated

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Whether Rainbow Lake is safe to swim in today is a call for the Alaska Department of Environmental Conservation and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Rainbow Lake

These are the measurements Alaska DEC publishes for Rainbow Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.

No clarity data. TSI undefined.

Ask about Rainbow Lake

Answers come straight from the public measurements and survey records on this page.

Lake Details

Max depth

45 ft

Surface area

152 acres

Lake Size & Watershed

Watershed (drainage) area

1 sq mi

HydroLAKES / HydroSHEDS

Shoreline

3.9 mi

HydroLAKES / HydroSHEDS

Elevation

187 ft

Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).

Stays via Stay22

Stays near Rainbow Lake

Compare lakeside cabins, hotels, and vacation rentals near Rainbow Lake in Matanuska-Susitna County, Alaska — 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 Rainbow Lake

Prices for Oct 16–18, 4 adults. Change dates on the map below.

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Follow Rainbow Lake’s readings

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Fishing Rainbow Lake

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

Nearby Lakes in Matanuska-Susitna County

Crystal Lake1 miView →Rhein Lake1.1 miView →Florence Lake1.7 miView →John Lake—View →Little Lonely Lake1.1 miView →Long Lake—View →

Frequently asked questions about Rainbow Lake

Where is Rainbow Lake?: Rainbow Lake is a lake in Matanuska-Susitna County, Alaska. Its water-quality measurements are published by Alaska DEC and shown on this page as reported.
What is the water quality of Rainbow Lake?: Rainbow Lake in Matanuska-Susitna County, Alaska has water-quality measurements published by Alaska DEC, shown here as reported. Maximum depth: 45 ft. Surface area: 152 acres.
Is Rainbow Lake safe to swim in?: Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Rainbow Lake?: Rainbow Lake has a maximum depth of 45 feet. The lake covers 152 acres.