Krans Lake
Krans Lake in Isanti County, Minnesota is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 1.5 ft visibility. Maximum depth: 31 ft. Surface area: 34.73 acres.
- Clarity
- 1.5 ft
- Typical in August
- 72°F
- Max depth
- 31 ft
- Area
- 35 acres
- Trend
- ↓ Declining
- Public access
- No
Next lake in Isanti County
Why Krans 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 Krans Lake, the only measurement available is water clarity, which is not a water-quality indicator on its own — EPA's National Lakes Assessment does not grade clarity. Sampling here has recorded water clarity, but not phosphorus and algae (chlorophyll-a).
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.
Krans Lake is a 35-acre lake in Isanti County, Minnesota with a maximum depth of 31 feet. Overall water quality is declining over recent sampling years. The lake supports 9 documented fish species including black bullhead, black crappie, and bluegill. No public access — the lake is private or restricted.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2025-10-13. 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 Krans Lake
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Very murky, less than 1.5 ft of visibility. Trophic State Index: 71.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.5 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 71 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
Where to stay near Krans Lake
Compare lakeside cabins, hotels, and vacation rentals near Krans Lake in Isanti 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 Krans Lake
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Water Temperature
Krans Lake typically sits around 72°F at the surface in August. Summer average is about 74°F. Usually warmest in Jul (about 77°F) and coldest in Oct (about 58°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 30 field readings (2023–2025) via the EPA Water Quality Portal. See the full Krans Lake water temperature breakdown →
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 31 ft |
| Surface Area | 35 acres |
| Shoreline Length | 1 mi |
| Littoral Zone | 89% |
| Public Access | No |
Fish Species
Click a species to see every graded lake where it is documented.
Fishing Krans Lake
DNR Fisheries Survey Summary
4 surveys on file from MN DNR Fisheries. Most recent: 2008-06-17 (Standard Survey).
Top Species by Catch Rate
| Species | Avg CPUE | Avg Weight |
|---|---|---|
| Black Bullhead | 48.79 | 0.1 lb |
| Bluegill | 25.52 | 0.18 lb |
| Yellow Perch | 22.87 | 0.19 lb |
| Black Crappie | 3.94 | 0.15 lb |
| Pumpkinseed | 3.23 | 0.14 lb |
| Northern Pike | 3.16 | 2.58 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 Bullhead
Bluegill
Yellow Perch
Black Crappie
From the 2008-06-17 survey
Krans Lake, located in Chisago and Isanti Counties, has a surface area of 42 acres and has been assigned to lake class 30. The lake is managed primarily for northern pike with bluegill sunfish, black crappie and largemouth bass as the secondary species. Low winter oxygen levels and winterkill cause great variaton in…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Krans Lake. 1 report on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fisheries Lake Survey — KransFisheries Lake Survey · MN DNR LakeFinder
Water Quality Trend: ↓ Declining
Based on 3 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.125 m/yr | 3 |
Graded lakes near Krans Lake
Krans Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Isanti County
Frequently asked questions about Krans Lake
What is the water quality grade for Krans Lake?
- Krans Lake in Isanti County, Minnesota is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 1.5 ft visibility. Maximum depth: 31 ft. Surface area: 34.73 acres.
Is Krans Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Krans 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 Krans Lake?
- Krans Lake typically sits around 72°F at the surface in August, from 30 EPA Water Quality Portal field readings (2023–2025). That is a typical value for the month, not a live reading.
How deep is Krans Lake?
- Krans Lake has a maximum depth of 31 feet. The lake covers 34.73 acres.
What fish are in Krans Lake?
- Fish species found in Krans Lake include black bullhead, black crappie, bluegill, bowfin (dogfish), hybrid sunfish, northern pike, pumpkinseed, white sucker, yellow perch. Krans Lake is located in Isanti County, Minnesota.
Explore Krans Lake across LakeGrade
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Where this data comes from
31 measurements from 1 monitoring station, 2023–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Minnesota Pollution Control Agency - Ambient Surface Water
MNPCA31 samples · 2023–2025
Analytical methods
- Field measurement/observation, generic 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
Lake details from Minnesota DNR LakeFinder