Coeur D' Alene Lake
Kootenai County, IdahoView mapDirections
Idaho DEQ publishes the water-quality measurements for Coeur D' Alene Lake. Here is what has been measured.
- Public access
- Limited data
Coeur D' Alene Lake in Kootenai County, Idaho has water-quality measurements published by Idaho DEQ, shown here as reported. Phosphorus: 12 µg/L.
Coeur D' Alene Lake is a lake in Kootenai County, Idaho. Limited fish-species data available. Public access is available with 4 public boat landings.
Source: EPA Water Quality Portal sampling records, IDEQ, last sampled 2012-11-27. Methodology: how these readings are compared.
What Coeur D' Alene Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch4 documented ramps
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Coeur D' Alene Lake is safe to swim in today is a call for the Idaho Department of Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Coeur D' Alene Lake
These are the measurements Idaho DEQ publishes for Coeur D' Alene 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. Phosphorus 12 µg/L. TSI 40.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | No reading How deep a black-and-white disk stays visible from the surface. Higher is clearer. | |
| Total phosphorus | 12µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 40 | Oligotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Low nutrients, clear water. No reading is a swimming clearance.
Ask about Coeur D' Alene Lake
Answers come straight from the public measurements and survey records on this page.
Recreation & Access
- Fullers LandingPublic
- Spokane PointPublic
- HarrisonSemi-private
- Conkling MarineSemi-private
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
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Fishing Coeur D' Alene Lake
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Frequently asked questions about Coeur D' Alene Lake
Where is Coeur D' Alene Lake?
- Coeur D' Alene Lake is a lake in Kootenai County, Idaho. Its water-quality measurements are published by Idaho DEQ and shown on this page as reported.
What is the water quality of Coeur D' Alene Lake?
- Coeur D' Alene Lake in Kootenai County, Idaho has water-quality measurements published by Idaho DEQ, shown here as reported. Phosphorus: 12 µg/L.
Is Coeur D' Alene Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Are there boat ramps on Coeur D' Alene Lake?
- Coeur D' Alene Lake has 4 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Fullers Landing, Spokane Point, Harrison, Conkling Marine. Public access is listed as yes.
Can I fish at Coeur D' Alene Lake?
- Coeur D' Alene Lake has 4 documented boat landings in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Idaho's fish and wildlife agency, so check its current regulations before you go.
Explore Coeur D' Alene Lake across LakeQuality
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Where this data comes from
17 measurements from 1 monitoring station, 2012. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Coeur D'Alene Tribe (Tribal)
CDATWATRES17 samples · 2012
Analytical methods
- Total Phosphorus After Block Digestion
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Named boat-access points from the USGS National Boat Ramps inventory