Skip to main content
LakeQuality
Late afternoon sun over Slim Lake, scattering a bright path across wind-textured water

Menard County Lake Quality

Illinois, 1 lake, measured by Illinois EPA

Menard County holds 1 monitored lake. With a sample that small the county-level summary describes those specific waters, not necessarily every water body in the county. The 1 monitored lake in Menard County carries whatever clarity, phosphorus, and chlorophyll-a readings Illinois EPA has published, shown as reported.

Many of the county's lakes are deep glacial basins, over 50 feet at their deepest point, which gives them thermal stratification and a buffer against summer warming.

Loading map…

Where to stay near Menard County

Top-rated places to stay near Menard 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 Menard County?

Get lake water-quality updates plus the best cabin & lodging deals near Menard County — straight to your inbox. No spam, unsubscribe anytime.

All Lakes in Menard County

1 lake · 0 ranked on readings, 1 without enough sampling0 lakes ranked on readings · 1 without enough sampling, hidden

#LakeClarityPhosphorusAlgaeTrophicMax DepthAccess
Lake PetersburgMenardNo recent samplesNo recent samplesNo recent samplesNo recent samples60 ftNot 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.

Take the quiz →

Browse every Illinois 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 Illinois Environmental Protection Agency. See data sources.