Hilles Lake
Hilles Lake in Dickey County, North Dakota is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 299 acres.
- Area
- 299 acres
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Why Hilles 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 Hilles 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 NDDEQ and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Hilles Lake is a 299-acre lake in Dickey County, North Dakota.
Source: EPA Water Quality Portal sampling records, NDDEQ, 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 Hilles 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 Hilles Lake
Compare lakeside cabins, hotels, and vacation rentals near Hilles Lake in Dickey County, North Dakota — 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 Hilles Lake
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 299 acres |
No bathymetric survey has been published for Hilles Lake, so its depth is not documented here.
Fishing Hilles Lake
Nearby Lakes in Dickey County
Frequently asked questions about Hilles Lake
Where is Hilles Lake?
- Hilles Lake is a lake in Dickey County, North Dakota. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.
What is the water quality grade for Hilles Lake?
- Hilles Lake in Dickey County, North Dakota is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 299 acres.
Is Hilles Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Hilles Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
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Where this data comes from
Measurements for Hilles Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
Other records on this page
Depth, fish, and access data from North Dakota Game & Fish