Anna Lake
Crow Wing County, Minnesota112 acresView mapDirections
Minnesota PCA publishes the water-quality measurements for Anna Lake. Here is what has been measured.
- 19 ft max depth
- Limited data
Anna Lake in Crow Wing County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 11.5 ft visibility. Maximum depth: 19 ft. Surface area: 112.16 acres.
Minnesota DNR's Standard Survey on July 6, 1989 caught 27.50 northern pike per gill net at Anna Lake. DNR survey details →
Anna Lake is a 112-acre lake in Crow Wing County, Minnesota with a maximum depth of 19 feet. Overall water quality is improving over recent sampling years. Limited fish-species data available. No public access — the lake is private or restricted.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2021-08-13. Methodology: how these readings are compared.
What Anna Lake is good for
From access and monitoring records, not editorial picks.
- Clear water11.5 ft of visibility
- Ice seasonIce-out around Apr 19
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Anna Lake is safe to swim in today is a call for the Minnesota Pollution Control Agency and the Minnesota DNR and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Anna Lake
These are the measurements Minnesota PCA publishes for Anna Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Good clarity, visible to about 11.5 ft. TSI 42.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 11.5ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | No reading The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. | |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 42 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Anna Lake
Answers come straight from the public measurements and survey records on this page.
Minnesota DNR's Standard Survey on July 6, 1989 caught 27.50 northern pike per gill net at Anna Lake.
A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Anna Lake’s water-quality measurements separately, and the water-quality trend over 6 years of monitoring is improving. Catch rate is not a swim clearance and is not a weekly bite report.
DNR Fisheries Survey Summary
2 surveys on file from MN DNR Fisheries. Most recent: 1989-07-06 (Standard Survey).
2 surveys on file · most recent 1989-07-06 (Standard Survey)
37 years old| Species | Catch rate (CPUE) | Size | Avg weight |
|---|---|---|---|
| Pumpkinseed | 211.94 | 0.05 lb | |
| Black Crappie | 36.56 | 0.08 lb | |
| Northern Pike | 11.56 | 3.46 lb | |
| Yellow Perch | 5.56 | 0.12 lb | |
| White Sucker | 1.17 | 1.87 lb | |
| Largemouth Bass | 0.75 | 0.13 lb |
CPUE = catch per unit effort, fish caught per net per set in a standardised survey. It measures abundance, not size, and is not a weekly bite report.
From the 1989-07-06 survey
Lake class 36: The northern pike population is extremely high for the lake class 36, at 27.5 fish/net. Black crappie abundance is also high, with the individual being very small. Pumpkinseed population is extremely high but with a very small individual size. Yellow perch are present in moderate numbers.
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Anna Lake. 2 reports on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fisheries Lake Survey — AnnaFisheries Lake Survey · MN DNR LakeFinder
- —Aquatic Plant Report — Anna (0438)Aquatic Plant Report · MN DNR LakeFinder
Lake Details
Max depth
19 ft
Surface area
112 acres
Shoreline
2.7 mi
Littoral zone
91%
Share shallower than 15 ft
Public access
No
Listed by Minnesota PCA
Lake Size & Watershed
Watershed (drainage) area
1 sq mi
HydroLAKES / HydroSHEDS
Elevation
1,270 ft
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Stays via Stay22
Stays near Anna Lake
Compare lakeside cabins, hotels, and vacation rentals near Anna Lake in Crow Wing 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 Anna Lake
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Fishing Anna Lake
Water Quality Trend: Improving
Based on 6 years of monitoring (2020–2025).
Water clarity
Improving6 years
Ice season
Typical ice-out
Apr 19
Earliest Mar 27, 2016 · Latest May 4, 2022
Typical ice-in
Nov 20
Earliest Nov 10, 2018 · Latest Nov 24, 2015
Most recent ice-out
May 1
2023
18 observations · Minnesota PCA ice records
Nearby Lakes in Crow Wing County
Frequently asked questions about Anna Lake
Where is Anna Lake?
- Anna Lake is a lake in Crow Wing County, Minnesota. Its water-quality measurements are published by Minnesota PCA and shown on this page as reported.
What is the water quality of Anna Lake?
- Anna Lake in Crow Wing County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 11.5 ft visibility. Maximum depth: 19 ft. Surface area: 112.16 acres.
Is Anna Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Anna Lake?
- Anna Lake has a maximum depth of 19 feet. The lake covers 112.16 acres.
What did the DNR fisheries survey find at Anna Lake?
- Minnesota DNR's Standard Survey on July 6, 1989 caught 27.50 northern pike per gill net at Anna Lake. A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Anna Lake’s water-quality measurements separately, and the water-quality trend over 6 years of monitoring is improving. Catch rate is not a swim clearance and is not a weekly bite report.
When does Anna Lake thaw?
- Anna Lake typically has ice-out around Apr 19. Ice typically forms around Nov 20. The open water season is approximately 215 days.
Can I fish at Anna Lake?
- Public access to Anna Lake is listed as no on the lake record, so confirm before you make the trip. Seasons, size and bag limits, and whether you need a license are set by Minnesota's fish and wildlife agency, so check its current regulations before you go.
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Where this data comes from
6 measurements from 1 monitoring station, 2020–2021. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Minnesota Pollution Control Agency - Ambient Surface Water
MNPCA6 samples · 2020–2021
Analytical methods
- Field measurement/observation, generic method
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Lake size & watershed from HydroLAKES (HydroSHEDS)
Lake details from Minnesota DNR LakeFinder
Ice data from Minnesota DNR Climate