Devil'S Lake
Lincoln County, OregonView mapDirections
Nutrients and algae run above the regional average.
↓ down from C at the last regrade
- Eutrophic
- Impaired · Algal growth
- #1 of 1 in the county
- 43 ft max depth
- Public access
- Limited data
Devil'S Lake in Lincoln County, Oregon has a water quality grade of D (Nutrient-rich). Chlorophyll-a (algae): 15.6 µg/L.
- Max depth
- ~43 ft est.
- Type
- Eutrophic
- Chlorophyll-a
- 15.6 µg/L
- Trend
- ↓ Declining
- Public access
- Yes
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Stays near Devil'S Lake
Compare lakeside cabins, hotels, and vacation rentals near Devil'S Lake in Lincoln County, Oregon — 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 Devil'S Lake are listed below.
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Watch Devil'S Lake’s letter
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Devil'S Lake is a 0-acre productive, nutrient-rich eutrophic lake in Lincoln County, Oregon with an estimated average depth of about 43 feet. Water quality is graded D based on 1 sampling years through 2025. Overall water quality is declining over recent sampling years. Limited fish-species data available. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, Oregon DEQ, last sampled 2025-10-15. Grade methodology: LakeQuality methodology.
What Devil'S Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
Swimming Safety
Grade onlyBacteria advisory
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. Devil'S Lake is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth, oxygen depletion (low DO), pathogens (E. coli, fecal). Check local advisories before you swim.
Water Quality Grade: D (Nutrient-rich)
No clarity data. Chlorophyll-a 15.6 µg/L. TSI 58. The letter is not a swimming clearance.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | 15.6 µg/L | Poor |
| Trophic State Index (TSI) | 58 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | ~43 ft est. |
| Average Depth | ~28 ft est. |
| Public Access | Yes |
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Oregon has not published bathymetry for Devil'S Lake.
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth here is modelled, not surveyed — HydroLAKES v1.0 estimates lake depth from surrounding terrain rather than from soundings. Treat it as an approximation, and prefer a state bathymetric survey where one exists.
Recreation & Access
- East Devils Lake State ParkPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Devil'S Lake
Water Quality Trend: ↓ Declining
Based on 2 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Chlorophyll-a | ↓ Declining | +41.2 µg/L/yr | 2 |
Reservoir Info (USACE NID)
Devil'S Lake is a man-made reservoir impounded by the Spring Lake, built primarily for recreation, 26 ft tall.
- Surface area
- 0 ac
- Normal storage
- 30.8 ac-ft
- Max storage
- 0 ac-ft
- Drainage area
- 0 sq mi
- Hazard class
- High
- Owner
- CITY OF LINCOLN CITY
Source: USACE National Inventory of Dams, NID ID OR03811 · Operator website · Matched by proximity (0.93 km)
EPA Impairment Status
Devil'S Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
Source: EPA ATTAINS assessment unit OR_LK_1710020409_02_100164 · Official waterbody report
County Ranking
Ranked #1 of 1 lakes in Lincoln County
Nearby Lakes in Lincoln County
Frequently asked questions about Devil'S Lake
Where is Devil'S Lake?
- Devil'S Lake is a lake in Lincoln County, Oregon. LakeQuality grades it D for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Devil'S Lake?
- Devil'S Lake in Lincoln County, Oregon has a water quality grade of D (Nutrient-rich). Chlorophyll-a (algae): 15.6 µg/L.
Is Devil'S Lake safe to swim in?
- The D is nutrients and algae, not a swimming clearance. Devil'S Lake is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth, oxygen depletion (low DO), pathogens (E. coli, fecal). Check local advisories before you swim.
How deep is Devil'S Lake?
- No published bathymetric survey covers Devil'S Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 43 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate.
Are there boat ramps on Devil'S Lake?
- Devil'S Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include East Devils Lake State Park. Public access is listed as yes.
Explore Devil'S Lake across LakeQuality
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Other Grade D Lakes in Oregon
Eutrophic Lakes in Oregon
Where this data comes from
8 measurements from 1 monitoring station, 2024–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Department of Environmental Quality - State of Oregon
OREGONDEQ8 samples · 2024–2025
Analytical methods
- 10200 H ~ Chlorophyll a-b-c Determination
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.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database
Lake size & watershed from HydroLAKES (HydroSHEDS)
Named boat-access points from the USGS National Boat Ramps inventory