Lake Vermilion
Lake Vermilion in Vermilion County, Illinois is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 793 acres.
- Area
- 793 acres
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Why Lake Vermilion 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 Lake Vermilion, 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 Illinois EPA and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Lake Vermilion is a 793-acre lake in Vermilion County, Illinois.
Source: EPA Water Quality Portal sampling records, Illinois 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 Lake Vermilion
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 Lake Vermilion
Compare lakeside cabins, hotels, and vacation rentals near Lake Vermilion in Vermilion County, Illinois — 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 Lake Vermilion
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 793 acres |
No bathymetric survey has been published for Lake Vermilion, so its depth is not documented here.
Fishing Lake Vermilion
Nearby Lakes in Vermilion County
Frequently asked questions about Lake Vermilion
Where is Lake Vermilion?
- Lake Vermilion is a lake in Vermilion County, Illinois. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.
What is the water quality grade for Lake Vermilion?
- Lake Vermilion in Vermilion County, Illinois is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 793 acres.
Is Lake Vermilion safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Lake Vermilion is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
Explore Lake Vermilion across LakeQuality
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Where this data comes from
Measurements for Lake Vermilion come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.