Casey Lake
Casey Lake in Ramsey County, Minnesota is not rated for water quality — its monitoring record does not meet the evidence bar. Maximum depth: 3.5 ft. Surface area: 11.82 acres.
- Typical in August
- 76°F
- Max depth
- 3.5 ft
- Area
- 12 acres
- Public access
- No
Next lake in Ramsey County
Why Casey Lake has no grade
We grade a lake only when its monitoring record clears the evidence bar: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Casey Lake, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years).
Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.
Sampling is run by MPCA and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Casey Lake is a 12-acre lake in Ramsey County, Minnesota with a maximum depth of 4 feet. The lake supports 4 documented fish species including black bullhead, black crappie, and common carp. No public access — the lake is private or restricted.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2020-02-21. Grade methodology: LakeGrade methodology.
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Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Casey Lake
These readings exist but do not meet the evidence bar for an A–F grade — see why.
No clarity data.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples |
Where to stay near Casey Lake
Compare lakeside cabins, hotels, and vacation rentals near Casey Lake in Ramsey County, Minnesota — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near Casey Lake
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Planning a whole trip? See where to stay at Minnesota’s top lakes →
Water Temperature
Casey Lake typically sits around 76°F at the surface in August. Summer average is about 74°F. Usually warmest in Jul (about 79°F) and coldest in Sep (about 65°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 39 field readings (2010–2011) via the EPA Water Quality Portal. See the full Casey Lake water temperature breakdown →
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 3.5 ft |
| Surface Area | 12 acres |
| Shoreline Length | 0.6 mi |
| Littoral Zone | 100% |
| Public Access | No |
Fish Species
Click a species to see every graded lake where it is documented.
Fishing Casey Lake
DNR Fisheries Survey Summary
2 surveys on file from MN DNR Fisheries. Most recent: 2007-10-18 (Targeted Survey).
Top Species by Catch Rate
| Species | Avg CPUE | Avg Weight |
|---|---|---|
| Black Crappie | 97.10 | 0.04 lb |
| Black Bullhead | 22.93 | 0.09 lb |
| Green Sunfish | 12.88 | 0.03 lb |
| Common Carp | 5.92 | 0.84 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.
Black Crappie
Black Bullhead
Green Sunfish
Common Carp
From the 2007-10-18 survey
Casey Lake is a small, shallow lake located in North St. Paul. Most of the shoreline is within Casey Lake Park. The park offers ball fields, playground, parking, restrooms, picnicking, and walking paths. The Ramsey-Washington Metro Watershed District conducted a shoreline restoration in the park in 2007. This will…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Casey Lake. 1 report on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fisheries Lake Survey — CaseyFisheries Lake Survey · MN DNR LakeFinder
EPA Impairment Status
Casey Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit MN62-0141-00 · Official waterbody report · Matched by proximity (1.53 km)
Graded lakes near Casey Lake
Casey Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Ramsey County
Frequently asked questions about Casey Lake
What is the water quality grade for Casey Lake?
- Casey Lake in Ramsey County, Minnesota is not rated for water quality — its monitoring record does not meet the evidence bar. Maximum depth: 3.5 ft. Surface area: 11.82 acres.
Is Casey Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Casey Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
What is the water temperature of Casey Lake?
- Casey Lake typically sits around 76°F at the surface in August, from 39 EPA Water Quality Portal field readings (2010–2011). That is a typical value for the month, not a live reading.
How deep is Casey Lake?
- Casey Lake has a maximum depth of 3.5 feet. The lake covers 11.82 acres.
What fish are in Casey Lake?
- Fish species found in Casey Lake include black bullhead, black crappie, common carp, green sunfish. Casey Lake is located in Ramsey County, Minnesota.
Explore Casey Lake across LakeGrade
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Where this data comes from
3 measurements from 1 monitoring station, 2020. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Minnesota Pollution Control Agency - Ambient Surface Water
MNPCA3 samples · 2020
Analytical methods
- Phosphorus by Two Reagent Colorimetry
- Turbidity, Nephelometric Method
Monitoring station identifiers (1)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database
Lake details from Minnesota DNR LakeFinder