Brown County Lake Quality
Kansas, 5 lakes, measured by KDHE
Brown 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. 2 of those lakes carry recent nutrient and algae readings. The county-level summary describes that subset, not every water body listed. Phosphorus and algae readings vary widely across Brown County; the per-lake pages below carry the numbers.
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. Mission Lake has the lowest nutrient and algae readings in the county.
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Quick Answers for Brown County
Planning a trip? Check special fishing regulations for Mission Lake — or check the official Kansas fishing regulations.
All Lakes in Brown County
5 lakes · 2 ranked on readings, 3 without enough sampling2 lakes ranked on readings · 3 without enough sampling, hidden
| # | Lake | Clarity | Phosphorus | Algae | Trophic | Access |
|---|---|---|---|---|---|---|
| 1 | Mission LakeBrown | 1 ft | 170 µg/L | 9.3 µg/L | No recent samples | Not recorded |
| 2 | Hiawatha City LakeBrown | 2.1 ft | 135 µg/L | 93 µg/L | No recent samples | Not recorded |
| Brown Co State Fishing LakeBrown | 1.3 ft | 88 µg/L | 64.5 µg/L | No recent samples | Not recorded | |
| Pony Creek LakeBrown | 2.2 ft | 83 µg/L | 62 µg/L | No recent samples | Not recorded | |
| Little LakeBrown | No recent samples | 250 µg/L | 155 µg/L | No recent samples | Not recorded |
NR = no nutrient or algae reading on record. The measurements are published as the authority reports them. Where the data comes from.
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Source: the Kansas Department of Health and Environment. See data sources.