Platte County Lake Quality
Missouri, 3 lakes, average grade C (Fair)
Only 3 lakes in Platte 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. Platte 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 Weatherby Lake (B); the most-stressed is Houston Lake (F).
Quick Answers for Platte County
Planning a trip? Check special fishing regulations for Weatherby Lake — or check the official Missouri fishing regulations.
All Lakes in Platte County
| Rank | Lake | Grade | Clarity | Phosphorus |
|---|---|---|---|---|
| 1 | Weatherby Lake | B | 6.2 ft | 16 µg/L |
| 2 | Waukomis Lake | C | 4.7 ft | 26 µg/L |
| 3 | Houston Lake | F | 1.1 ft | 176 µg/L |
Other Counties in Missouri
See how Platte County stacks up in the national county water-quality rankings, or browse the full directory of graded lakes across all 15 states.
Where to stay near Platte County
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Source: EPA National Aquatic Resource Surveys, 2026.