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

Gaston County Lake Quality

North Carolina, 10 lakes, measured by NC DEQ

Gaston County has 10 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. 5 of those lakes carry recent nutrient and algae readings. The county-level summary describes that subset, not every water body listed. For Gaston County the spread behind the average matters more than the average itself: a few nutrient-rich lakes among many clear ones produce the same figure as the inverse.

The county's lakes lean shallow, which makes the readings sensitive to wind, sediment-resuspension, and any nutrient inputs from the watershed. The cleanest measured lake is Mountain Island Lake.

Loading map…

Where to stay near Gaston County

Top-rated places to stay near Gaston County

Prices for Oct 23–25, 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 Gaston County?

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

All Lakes in Gaston County

10 lakes · 5 ranked on readings, 5 without enough sampling5 lakes ranked on readings · 5 without enough sampling, hidden

#LakeClarityPhosphorusAlgaeTrophicAccess
1Mountain Island LakeGastonNo recent samples20 µg/L6.5 µg/LNo recent samples✓ Public
2Lake WylieGastonNo recent samples30 µg/L13 µg/LNo recent samples✓ Public
3Bessemer City LakeGastonNo recent samples20 µg/L7.1 µg/LNo recent samplesNot recorded
4Catawba Creek LakeGaston3.6 ft35 µg/L18.5 µg/LNo recent samples✓ Public
5S Fork Catawba Riv LakeGaston3.9 ft40 µg/L13 µg/LNo recent samples✓ Public
NonameGastonNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Mountain Island LakeGastonNo recent samplesNo recent samplesNo recent samplesNo recent samples✓ Public
Robinwood LakeGastonNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Rankin LakeGastonNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Lagoon DGastonNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot 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 North Carolina 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 North Carolina Department of Environmental Quality. See data sources.