Prince George's County Lake Quality
Maryland, 4 lakes — no lake here has enough monitoring data for a grade
Only 4 lakes in Prince George's County carry an active grade. The county-level summary is therefore representative of those specific lakes, not necessarily of every water body in the county.
The county's lakes lean shallow, which makes the grades sensitive to wind, sediment-resuspension, and any nutrient inputs from the watershed. The cleanest lake on the books is Allen Pond (—); the most-stressed is Allen Pond (—).
Quick Answers for Prince George's County
Planning a trip? Check special fishing regulations for Allen Pond — or check the official Maryland fishing regulations.
All Lakes in Prince George's County
4 lakes · 0 graded, 4 not rated0 graded lakes · 4 not rated, hidden
| # | Lake | Grade | Clarity | Phosphorus | Algae | Trophic | Access |
|---|---|---|---|---|---|---|---|
| NRAllen PondPrince George's | NR | 2.1 ft | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRCash LakePrince George's | NR | 1.3 ft | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRGreenbelt LakePrince George's | NR | 3.9 ft | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRLake ArtemesiaPrince George's | NR | 4.6 ft | No recent samples | No recent samples | No recent samples | Not recorded |
NR = not rated: the monitoring record does not meet the evidence bar for a grade. That is EPA Integrated Reporting Category 3 (insufficient information), not a failing grade. How grading works.
Lake Match
Which lake suits how you actually use one?
Six questions — swimming, fishing, quiet, cabins, drive time — and a shortlist of graded lakes that fit, with the water quality behind each one.
Other Counties in Maryland
See how Prince George's County stacks up in the national county water-quality rankings, or browse the full directory of graded lakes across all 39 states and 2 Canadian provinces.
Where to stay near Prince George's County
Top-rated places to stay near Prince George's County
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 Prince George's County?
Get lake water-quality report cards plus the best cabin & lodging deals near Prince George's County — straight to your inbox. No spam, unsubscribe anytime.
Source: EPA National Aquatic Resource Surveys, 2026.