Lakes / Tennessee / Grundy County / S K Johnson Lake
S K Johnson Lake, Tennessee
80 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Tennessee
35.41 degrees N, 85.50 degrees W - Grundy County. State and county outlines drawn from Census boundary data; the lake marker is placed by its USGS National Hydrography Dataset coordinates, not by eye. Schematic - not a survey map.
How S K Johnson Lake Stacks Up
- Larger than 62% of the 249 lakes counted in Tennessee.
- The largest lake in Grundy County among those counted.
- About 28 miles from Chattanooga, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Deerhead Lake | Sequatchie | 2.2 mi | 26 acres |
| Big Creek Lake | Grundy | 12 mi | 75 acres |
| Parker Lake | Grundy | 14 mi | 39 acres |
| Ramsey Lake | Grundy | 15 mi | 58 acres |
| Bickerstaff Lake | Bledsoe | 16 mi | 64 acres |
| Fall Creek Falls Lake | Van Buren | 18 mi | 302 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About S K Johnson Lake
How Big Is S K Johnson Lake?
S K Johnson Lake covers 80 acres in Grundy County, Tennessee.
What Is the Largest Lake in Grundy County?
S K Johnson Lake is the largest lake in Grundy County, at 80 acres.
Largest Lakes in Tennessee
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Kentucky Lake | Henry | 144,085 acres | - |
| 2 | Watts Bar Lake | Roane | 33,441 acres | - |
| 3 | Cherokee Lake | Hamblen | 29,436 acres | - |
| 4 | Douglas Lake | Jefferson | 29,224 acres | - |
| 5 | Chickamauga Lake | Hamilton | 27,237 acres | - |
All 249 Tennessee lakes ranked by surface area
Sources: USGS NHD (The National Map NHD MapServer layer 12) named waterbodies FTYPE 390/436; counties via Census point-in-polygon lake data (ID 120022336). Verified October 30, 2026.