Coon Creek Lake
Kay County, OklahomaView mapDirections
Nutrients and algae run above the regional average.
- Eutrophic
- #3 of 5 in the county
- Limited data
Coon Creek Lake in Kay County, Oklahoma has a water quality grade of D (Nutrient-rich). Phosphorus: 359 µg/L. Chlorophyll-a (algae): 24 µg/L.
- Type
- Eutrophic
- Phosphorus
- 359 µg/L
- Chlorophyll-a
- 24 µg/L
- Trend
- → Stable
Stays via Stay22
Stays near Coon Creek Lake
Compare lakeside cabins, hotels, and vacation rentals near Coon Creek Lake in Kay County, Oklahoma — 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. The water-quality grade measures nutrients and algae, not lodging — cabins and rentals around Coon Creek Lake are listed below.
Top-rated places to stay near Coon Creek Lake
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Watch Coon Creek Lake’s letter
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Coon Creek Lake is a productive, nutrient-rich eutrophic lake in Kay County, Oklahoma. Water quality is graded D based on 2 sampling years through 2021. Phosphorus level is improving over recent sampling years. Compared to the 4 other monitored lakes in Kay County, Coon Creek Lake ranks #3 for water quality.
Source: EPA Water Quality Portal sampling records, ODEQ, last sampled 2021-03-11. Grade methodology: LakeQuality methodology.
Swimming Safety
Grade onlyLimited data
Based on clarity and algae grades from past sampling — we do not hold live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
The D is nutrients and algae, not a swimming clearance. Check local advisories before you swim.
Water Quality Grade: D (Nutrient-rich)
No clarity data. Phosphorus 359 µg/L. Chlorophyll-a 24 µg/L. TSI 75. The letter is not a swimming clearance.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 359 µg/L | Poor |
| Chlorophyll-a (Algae) | 24 µg/L | Poor |
| Trophic State Index (TSI) | 75 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Fishing Coon Creek Lake
Water Quality Trend: → Stable
Based on 8 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Phosphorus | ↑ Improving | -31.03 µg/L/yr | 8 |
| Chlorophyll-a | ↓ Declining | +3.01 µg/L/yr | 5 |
County Ranking
Ranked #3 of 5 lakes in Kay County
Nearby Lakes in Kay County
Frequently asked questions about Coon Creek Lake
Where is Coon Creek Lake?
- Coon Creek Lake is a lake in Kay County, Oklahoma. LakeQuality grades it D for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Coon Creek Lake?
- Coon Creek Lake in Kay County, Oklahoma has a water quality grade of D (Nutrient-rich). Phosphorus: 359 µg/L. Chlorophyll-a (algae): 24 µg/L.
Is Coon Creek Lake safe to swim in?
- The D is nutrients and algae, not a swimming clearance. Check local advisories before you swim.
Explore Coon Creek Lake across LakeQuality
More Oklahoma Lake Rankings
Other Grade D Lakes in Oklahoma
Eutrophic Lakes in Oklahoma
Where this data comes from
168 measurements from 1 monitoring station, 2012–2021. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Kaw Nation, Oklahoma (Tribal)
KAWNATON_WQX168 samples · 2012–2021
Analytical methods
- Phosphorus, Total Ascorbic Acid Method
- Phosphorus, Recative (Orthophosphate) Ascorbic Acid Method
- Phosphorus by Colorimetry
- Phosphorus, Reactive (Orthophosphate) Ascorbic Acid Method
- Chlorophyll a-b-c Determination
- 10200 H 2 ~ Chlorophyll a-b-c Determination by spectrophotometer
- Color, APHA Platinum-Cobalt
Monitoring station identifiers (1)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.