McPherson County Lake Quality
Kansas, 5 lakes — no lake here has enough monitoring data for a grade
McPherson County has 5 monitored 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. No lake in McPherson County has enough sampling behind it for an A–F grade yet. The 5 monitored lakes below carry whatever clarity, phosphorus, and chlorophyll-a measurements exist.
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.
Where to stay near McPherson County
Top-rated places to stay near McPherson County
Prices for Sep 11–13, 4 adults. Change dates on the map below.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a trip to McPherson County?
Get lake water-quality report cards plus the best cabin & lodging deals near McPherson County — straight to your inbox. No spam, unsubscribe anytime.
Quick Answers for McPherson County
Planning a trip? Check special fishing regulations for Mcpherson Co State Fishing Lake — or check the official Kansas fishing regulations.
All Lakes in McPherson County
5 lakes · 0 graded, 5 not rated0 graded lakes · 5 not rated, hidden
| # | Lake | Grade | Clarity | Phosphorus | Algae | Trophic | Access |
|---|---|---|---|---|---|---|---|
| NRMcpherson Co State Fishing LakeMcPherson | NR | 1.8 ft | 260 µg/L | 100 µg/L | No recent samples | ✓ Public | |
| NRMingenback LakeMcPherson | NR | 0.5 ft | 800 µg/L | 17.5 µg/L | No recent samples | Not recorded | |
| NRMcpherson Wetlands LakeMcPherson | NR | No recent samples | No recent samples | 79 µg/L | No recent samples | Not recorded | |
| NRBlack Kettle State Fishing LakeMcPherson | NR | 0.8 ft | 520 µg/L | 10.4 µg/L | No recent samples | ✓ Public | |
| NRLake InmanMcPherson | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded |
NR = not rated: there is not enough recent sampling to support a letter. That is EPA Integrated Reporting Category 3 (insufficient information), not a failing grade. How grading works.
Lake Match
Which lake suits how you actually use one?
Six questions — swimming, fishing, quiet, cabins, drive time — and a shortlist of graded lakes that fit, with the water quality behind each one.
Other Counties in Kansas
See how McPherson County stacks up in the national county water-quality rankings, or browse the full directory of graded lakes across all United States (49 states), Canada (Ontario, Québec, Nova Scotia, British Columbia and Newfoundland and Labrador), and 38 other country hubs..
Source: EPA National Aquatic Resource Surveys, 2026.