Wyandotte County Lake Quality
Kansas, 6 lakes, average grade C (Fair)
Wyandotte County has 6 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. Wyandotte 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.
Most of the county's monitored lakes are shallow — under 50 feet — which means wind keeps the water column mixed all summer and sediment-bound phosphorus releases back into the surface layer whenever the bottom is disturbed. Wyandotte County Lake (A) is the cleanest in the county.
Quick Answers for Wyandotte County
Planning a trip? Check special fishing regulations for Wyandotte County Lake — or check the official Kansas fishing regulations.
All Lakes in Wyandotte County
| Rank | Lake | Grade | Clarity | Phosphorus |
|---|---|---|---|---|
| 1 | Wyandotte County Lake | A | 10.2 ft | - |
| 2 | Nla Lake | A | 9.9 ft | 14 µg/L |
| 3 | Quivira Lake | D | 3.5 ft | 70 µg/L |
| 4 | Pierson Lake | D | - | 87.7 µg/L |
| 5 | Big Eleven Lake Park Lake | F | 2.8 ft | 147 µg/L |
| 6 | Big Eleven Lake | F | - | 131 µg/L |
Other Counties in Kansas
See how Wyandotte 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 Wyandotte County
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Source: EPA National Aquatic Resource Surveys, 2026.