Rich County Lake Quality
Utah, 13 lakes, average grade A (Excellent)
Only 13 lakes in Rich 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 average grade is A — among the cleanest in {{stateName}}. 3 lakes pull an A on their own, and almost none fall into the D or F brackets.
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 Bear Lake (A); the most-stressed is Birch Creek Reservoir (C).
Quick Answers for Rich County
Planning a trip? Check special fishing regulations for Bear Lake — or check the official Utah fishing regulations.
All Lakes in Rich County
| Rank | Lake | Grade | Clarity | Phosphorus |
|---|---|---|---|---|
| 1 | Bear Lake | A | 21.2 ft | - |
| 2 | Bear Lake Off State Marina | A | 21 ft | - |
| 3 | Bear Lake | A | 20.7 ft | - |
| 4 | Little Creek Reservoir | B | 9.8 ft | - |
| 5 | Bear Lake Ese of Lakota Resort | B | 11.8 ft | - |
| 6 | Woodruff Creek Reservoir | B | 11.5 ft | - |
| 7 | Birch Creek Reservoir | C | 7.4 ft | - |
Other Counties in Utah
See how Rich County stacks up in the national county water-quality rankings, or browse the full directory of graded lakes across all 34 states.
Where to stay near Rich County
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Source: EPA National Aquatic Resource Surveys, 2026.