Lake Johnson
Lake Johnson in Spartanburg County, South Carolina is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 38 acres.
- Area
- 38 acres
- Public access
- Yes
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Why Lake Johnson 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 Johnson, 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 SCDES and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Lake Johnson is a 38-acre lake in Spartanburg County, South Carolina. Limited fish-species data available. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, SCDES, last sampled recent years. Grade methodology: LakeQuality methodology.
Watch Lake Johnson 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 Johnson
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 Johnson
Compare lakeside cabins, hotels, and vacation rentals near Lake Johnson in Spartanburg County, South Carolina — 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 Johnson
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 38 acres |
| Public Access | Yes |
No bathymetric survey has been published for Lake Johnson, so its depth is not documented here.
Recreation & Access
- Lake Edwin JohnsonPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Lake Johnson
Nearby Lakes in Spartanburg County
Frequently asked questions about Lake Johnson
Where is Lake Johnson?
- Lake Johnson is a lake in Spartanburg County, South Carolina. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.
What is the water quality grade for Lake Johnson?
- Lake Johnson in Spartanburg County, South Carolina is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 38 acres.
Is Lake Johnson safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Lake Johnson 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 Lake Johnson?
- Lake Johnson has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Lake Edwin Johnson. Public access is listed as yes.
Explore Lake Johnson across LakeQuality
More South Carolina Lake Rankings
Top 25 by overall water quality score
Top 25 by Secchi water clarity
Grade A/B + low algae filter
Panfish-rich, public access
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Other Lakes in South Carolina
Where this data comes from
Measurements for Lake Johnson 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