Crawford County Lake Quality
Kansas, 7 lakes, average grade C (Fair)
Only 7 lakes in Crawford 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. Crawford 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 Lake Crawford (B); the most-stressed is Nla Lake (D).
Quick Answers for Crawford County
Planning a trip? Check special fishing regulations for Lake Crawford — or check the official Kansas fishing regulations.
All Lakes in Crawford County
| Rank | Lake | Grade | Clarity | Phosphorus |
|---|---|---|---|---|
| 1 | Lake Crawford | B | 5.1 ft | - |
| 2 | Bone Creek Lake | B | 5.8 ft | - |
| 3 | Nla Lake | D | 0.1 ft | 455000 µg/L |
| 4 | Nla Lake | D | 0.5 ft | 146.8 µg/L |
Other Counties in Kansas
See how Crawford 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 Crawford County
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Source: EPA National Aquatic Resource Surveys, 2026.