Ramsey County Lake Quality
North Dakota, 14 lakes, average grade D (Nutrient-rich)
Ramsey County holds 14 monitored lakes. With a sample that small the county-level summary describes those specific waters, not necessarily every water body in the county. 7 of those lakes carry an A–F grade. The county-level summary describes that subset, not every water body listed. On average, Ramsey County lakes grade D, with phosphorus loading and reduced clarity showing up across most of the dataset.
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. Sweetwater Lake (B) is the cleanest in the county.
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Quick Answers for Ramsey County
Planning a trip? Check special fishing regulations for Sweetwater Lake — or check the official North Dakota fishing regulations.
All Lakes in Ramsey County
14 lakes · 7 graded, 7 not rated7 graded lakes · 7 not rated, hidden
| # | Lake | Grade | Clarity | Phosphorus | Algae | Trophic | Access |
|---|---|---|---|---|---|---|---|
| 1 | BSweetwater LakeRamsey | B | 3 ft | 655.5 µg/L | 10.7 µg/L | No recent samples | Not recorded |
| 2 | CDry LakeRamsey | C | 2.8 ft | 647.5 µg/L | 13.1 µg/L | No recent samples | Not recorded |
| 3 | DLake AliceRamsey | D | 3.1 ft | 368 µg/L | 18.8 µg/L | No recent samples | Not recorded |
| 4 | DLake IrvineRamsey | D | 2.5 ft | 389.5 µg/L | 15.4 µg/L | No recent samples | Not recorded |
| 5 | DPelican LakeRamsey | D | 3.7 ft | 396 µg/L | 21.2 µg/L | No recent samples | ✓ Public |
| 6 | DEast Devils LakeRamsey | D | 6.6 ft | 232 µg/L | 16.2 µg/L | No recent samples | Not recorded |
| 7 | FMorrison LakeRamsey | F | 1.9 ft | 548.5 µg/L | 85.9 µg/L | No recent samples | Not recorded |
| NRCavanaugh LakeRamsey | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRSweetwater LakeRamsey | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRTwin LakesRamsey | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRFox LakeRamsey | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRStone LakeRamsey | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRMikes LakeRamsey | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRChain LakeRamsey | 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 North Dakota
See how Ramsey 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.