Clayton County Lake Quality
Iowa, 1 lake, measured by Iowa DNR
Clayton County has 1 monitored lake — 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. The 1 monitored lake in Clayton County carries whatever clarity, phosphorus, and chlorophyll-a readings Iowa DNR has published, shown as reported.
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 Clayton County
Top-rated places to stay near Clayton County
Prices for Oct 16–18, 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 Clayton County?
Get lake water-quality updates plus the best cabin & lodging deals near Clayton County — straight to your inbox. No spam, unsubscribe anytime.
Quick Answers for Clayton County
Planning a trip? Check special fishing regulations for Wood Duck Slough — or check the official Iowa fishing regulations.
All Lakes in Clayton County
1 lake · 0 ranked on readings, 1 without enough sampling0 lakes ranked on readings · 1 without enough sampling, hidden
| # | Lake | Clarity | Phosphorus | Algae | Trophic | Access |
|---|---|---|---|---|---|---|
| Wood Duck SloughClayton | No recent samples | No recent samples | No recent samples | 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.
Lake Match
Which lake suits how you actually use one?
Six questions — swimming, fishing, quiet, cabins, drive time — and a shortlist of lakes that fit, with the water quality behind each one.
Other Counties in Iowa
Browse every Iowa lake, or the full directory of lakes across all United States (49 states), Canada (Ontario, Québec, Nova Scotia, British Columbia and Newfoundland and Labrador), and 38 other country hubs..
Source: the Iowa Department of Natural Resources. See data sources.