Silver Lake
Ramsey County, MinnesotaEutrophic
Silver Lake sits at a C on the grading scale — not impaired, not pristine, with summer measurements that vary year to year. Sub-grades cluster within a single letter of each other, which usually means the lake is in stable trophic balance rather than fighting one specific stressor.
Eutrophic conditions are the baseline here: clarity drops noticeably in late summer, and dissolved oxygen near the bottom can become a concern. Silver Lake reaches 18 ft at its deepest point — typical for Minnesota mid-sized lakes, with seasonal stratification but limited cold-water refuge. At 76 acres, Silver Lake sits below the Minnesota median: a small water where shoreline activity has an outsized effect on water quality. Among the 49 graded lakes in Ramsey County, Silver Lake sits at rank 17, above the county median.
Eurasian watermilfoil has been documented at Silver Lake, requiring shoreline management to keep dense mats from crowding native vegetation. Walleye are documented at Silver Lake, one of 12 fish species on record for the lake. A documented public access point at Silver Lake makes the lake usable for shore fishing, paddle craft, and trailered boats. The lake has a partial ice record — 8 observed ice-outs, centered near Apr 2. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2024-09-18. Grade methodology: LakeGrade methodology.
Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Moderate clarity, visible to about 7 ft. Phosphorus level: 56 µg/L. Trophic State Index: 56.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 7 ft | C |
| Phosphorus | 56 µg/L | C |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 56 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 18 ft |
| Surface Area | 76.03 acres |
| Shoreline Length | 1.9 mi |
| Littoral Zone | 93% |
| Public Access | Yes |
Fish Species
Click a species to see all Minnesota and Wisconsin lakes where it is found.
→ Best fishing times for Silver Lake (14-day solunar calendar)
→ Is it safe to eat fish from Silver Lake? (mercury & PFAS guide)
→ Silver Lake fishing regulations (limits, seasons, special rules)
Invasive Species
Water Quality Trend: ↑ Improving
Based on 5 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.267 m/yr | 5 |
| Phosphorus | ↑ Improving | -9.95 µg/L/yr | 5 |
Ice Season
Historical ice data from Minnesota DNR (11 observations).
Estimated open water season: 243 days
| Earliest | Latest | |
|---|---|---|
| Ice-Out | 2016-03-14 (2016) | 2008-04-20 (2008) |
| Ice-In | 2007-11-23 (2007) | 2004-12-05 (2004) |
Most recent ice-out: 2022-04-10
Location
County Ranking
Ranked #17 of 49 lakes in Ramsey County
Nearby Lakes in Ramsey County
More Minnesota Lake Rankings
State Parks Near Silver Lake
Other Grade C Lakes in Minnesota
Eutrophic Lakes in Minnesota
DNR Fisheries Survey Summary
10 surveys on file from MN DNR Fisheries. Most recent: 2017-07-24 (Standard Survey).
Top Species by Catch Rate
| Species | Avg CPUE | Avg Weight |
|---|---|---|
| Bluegill | 33.34 | 0.07 lb |
| Black Bullhead | 17.60 | 0.45 lb |
| Largemouth Bass | 7.79 | 0.96 lb |
| Hybrid Sunfish | 7.52 | 0.09 lb |
| Black Crappie | 6.85 | 0.15 lb |
| Pumpkinseed | 5.02 | 0.09 lb |
CPUE = catch per unit effort, averaged across surveys (excludes juvenile shoreline seining). Higher CPUE = more abundant in standardized sampling.
Length Distributions
Number of fish caught at each inch class in the most recent survey that recorded lengths. Red dashed line marks an approximate trophy threshold for that species.
Bluegill
Black Bullhead
Largemouth Bass
Hybrid Sunfish
From the 2017-07-24 survey
Silver Lake (72 acres and lake class 40) has maximum depth of 18 feet and littoral area of 71 acres. The lake is a heavily vegetated, shallow water basin that has a predominant Northern Pike - Largemouth Bass - Bluegill species composition. Eurasian watermilfoil was found in the lake in 1992. Since 1995, chemical…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Silver Lake. 3 reports on file.
- —Fisheries Lake Survey — SilverFisheries Lake Survey · MN DNR LakeFinder
- —Fish Stocking History — SilverFish Stocking History · MN DNR LakeFinder
- —Public Water Access Sites — SilverPublic Water Access Sites · MN DNR LakeFinder
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Lake details from Minnesota DNR LakeFinder
Ice data from Minnesota DNR Climate
Most recent sample: 2024-09-18
Monitoring stations: 2