
Hopkins County Lake Quality
Kentucky, 7 lakes, average grade B (Good)
Hopkins County holds 7 monitored lakes. With a sample that small the county-level summary describes those specific waters, not necessarily every water body in the county. 3 of those lakes carry an A–F grade. The county-level summary describes that subset, not every water body listed. The county-wide average lands at B — solid water quality with most lakes carrying clear summer transparency and low-to-moderate phosphorus.
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. Lake Peewee (B) is the cleanest in the county.
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Quick Answers for Hopkins County
Planning a trip? Check special fishing regulations for Lake Peewee — or check the official Kentucky fishing regulations.
All Lakes in Hopkins County
7 lakes · 3 graded, 4 not rated3 graded lakes · 4 not rated, hidden
| # | Lake | Grade | Clarity | Phosphorus | Algae | Trophic | Access |
|---|---|---|---|---|---|---|---|
| 1 | BLake PeeweeHopkins | B | No recent samples | 26 µg/L | No recent samples | No recent samples | ✓ Public |
| 2 | BLoch Mary ReservoirHopkins | B | No recent samples | 22.1 µg/L | No recent samples | No recent samples | ✓ Public |
| 3 | BGrapevine LakeHopkins | B | No recent samples | 17.3 µg/L | No recent samples | No recent samples | Not recorded |
| NRHomestead LakeHopkins | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRNortonville LakeHopkins | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRBrowns LakeHopkins | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRPleasant View LakeHopkins | 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.
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Other Counties in Kentucky
See how Hopkins 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.