Lake Hiwassee
Lake Hiwassee in Oklahoma County, Oklahoma is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 155 acres.
- Area
- 155 acres
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Why Lake Hiwassee 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 Hiwassee, 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 ODEQ and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Lake Hiwassee is a 155-acre lake in Oklahoma County, Oklahoma.
Source: EPA Water Quality Portal sampling records, ODEQ, last sampled recent years. Grade methodology: LakeQuality methodology.
Watch Lake Hiwassee water quality
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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 Hiwassee
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 Hiwassee
Compare lakeside cabins, hotels, and vacation rentals near Lake Hiwassee in Oklahoma 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.
Top-rated places to stay near Lake Hiwassee
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Planning a whole trip? See where to stay at Oklahoma’s top lakes →
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 155 acres |
No bathymetric survey has been published for Lake Hiwassee, so its depth is not documented here.
Fishing Lake Hiwassee
Nearby Lakes in Oklahoma County
Frequently asked questions about Lake Hiwassee
Where is Lake Hiwassee?
- Lake Hiwassee is a lake in Oklahoma County, Oklahoma. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.
What is the water quality grade for Lake Hiwassee?
- Lake Hiwassee in Oklahoma County, Oklahoma is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 155 acres.
Is Lake Hiwassee safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Lake Hiwassee 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 Hiwassee across LakeQuality
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Where this data comes from
Measurements for Lake Hiwassee come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.