Franklin County Lake Quality
Kansas, 1 lakes, average grade C (Fair)
Only 1 lakes in Franklin County carry an active grade. The county-level summary is therefore representative of those specific lakes, not necessarily of every water body in the county. The county average is C — the middle of the rubric, with one or two lakes pulling the average up or down depending on year.
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 Richmond City Lake (C); the most-stressed is Richmond City Lake (C).
Quick Answers for Franklin County
Planning a trip? Check special fishing regulations for Richmond City Lake — or check the official Kansas fishing regulations.
All Lakes in Franklin County
| Rank | Lake | Grade | Clarity | Phosphorus |
|---|---|---|---|---|
| 1 | Richmond City Lake | C | 3.9 ft | 27 µg/L |
Other Counties in Kansas
See how Franklin 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 Franklin County
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Source: EPA National Aquatic Resource Surveys, 2026.