Rooks County Lake Quality
Kansas, 3 lakes, average grade C (Fair)
Rooks County has 3 graded lakes — a thin enough sample that one or two stressed lakes can move the county average noticeably. Use the per-lake pages below for what actually matters. Rooks County averages to a C. The distribution behind that average matters more than the letter: a few stressed lakes versus many decent ones can produce the same average as the inverse.
The county's lakes lean shallow, which makes the grades sensitive to wind, sediment-resuspension, and any nutrient inputs from the watershed. The cleanest lake on the books is Rooks Co State Fishing Lake (B); the most-stressed is Webster Lake (C).
Quick Answers for Rooks County
Planning a trip? Check special fishing regulations for Rooks Co State Fishing Lake — or check the official Kansas fishing regulations.
All Lakes in Rooks County
| Rank | Lake | Grade | Clarity | Phosphorus |
|---|---|---|---|---|
| 1 | Rooks Co State Fishing Lake | B | 2.9 ft | 0.1 µg/L |
| 2 | Plainville Township Lake | C | 1.3 ft | - |
| 3 | Webster Lake | C | 3.2 ft | 25.5 µg/L |
Other Counties in Kansas
See how Rooks County stacks up in the national county water-quality rankings, or browse the full directory of graded lakes across all 34 states.
Where to stay near Rooks County
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Source: EPA National Aquatic Resource Surveys, 2026.