Delaware Lake
Delaware Lake in Delaware County, Ohio is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 1122 acres.
- Area
- 1,122 acres
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Why Delaware Lake 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 Delaware Lake, 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 Ohio EPA and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Delaware Lake is a 1,122-acre lake in Delaware County, Ohio.
Source: EPA Water Quality Portal sampling records, Ohio EPA, last sampled recent years. Grade methodology: LakeQuality methodology.
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Swimming Safety
Not ratedElevated nutrients
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Delaware Lake
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 Delaware Lake
Compare lakeside cabins, hotels, and vacation rentals near Delaware Lake in Delaware County, Ohio — 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 Delaware Lake
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 1,122 acres |
No bathymetric survey has been published for Delaware Lake, so its depth is not documented here.
Recreation & Access
- Delaware State Park - East rampPublic
- Delaware State Park - Main RampPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Delaware Lake
Nearby Lakes in Delaware County
Frequently asked questions about Delaware Lake
Where is Delaware Lake?
- Delaware Lake is a lake in Delaware County, Ohio. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.
What is the water quality grade for Delaware Lake?
- Delaware Lake in Delaware County, Ohio is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 1122 acres.
Is Delaware Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Delaware Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
Are there boat ramps on Delaware Lake?
- Delaware Lake has 2 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Delaware State Park - East ramp, Delaware State Park - Main Ramp.
Explore Delaware Lake across LakeQuality
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Where this data comes from
Measurements for Delaware Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
Other records on this page
Named boat-access points from the USGS National Boat Ramps inventory