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Vera Lake

Lake County, MinnesotaLimited DataOligotrophic

On the LakeGrade rubric, Vera Lake pulls an A: clarity at 19.0 ft and phosphorus readings still being added put it in the top bracket for Minnesota.

The lake's low TSI puts it in oligotrophic territory — the cleanest of the four trophic classes, but also the most vulnerable to nutrient-driven shifts. At 55 ft of maximum depth, Vera Lake stratifies reliably through the summer — the hypolimnion stays cooler and clearer than the surface layer suggests. At 250 acres, Vera Lake fits the Minnesota median for monitored lakes, with 6.2 miles of shoreline. Within Lake County's 142 graded waters, Vera Lake sits at rank 15, near the top of the local distribution.

Vera Lake has no invasive species recorded in Minnesota state databases as of 2023, though prevention practices still apply at all access points. The state fisheries records do not list documented species for Vera Lake, which usually reflects a lack of formal fisheries survey work rather than an empty lake. No formal public access is documented at Vera Lake — most use is by shoreline residents and their guests. Monitoring depth is thin here: the LakeGrade rubric is applied to a small number of sample years, and the grade will be revised as more data accumulates.

Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2023-07-21. Grade methodology: LakeGrade methodology.

Reviewed by LakeQuality Editorial Team · Updated

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Swimming Safety

Excellent for swimming, crystal clear water with minimal algae

Water Quality Grade: A, Excellent

Crystal clear, you can see 19 ft down. Trophic State Index: 35.

MetricValueGrade
Water Clarity (Secchi Depth)19 ftA
PhosphorusNo data
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)35Oligotrophic

Low nutrients, clear water, excellent for swimming

Lake Details

CharacteristicValue
Maximum Depth55 ft
Surface Area250.39 acres
Shoreline Length6.2 mi
Littoral Zone34%
Public AccessNo

Water Quality Trend: Declining

Based on 5 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Declining-0.243 m/yr5
See year-by-year chart →

Location

Loading map…

County Ranking

Ranked #15 of 142 lakes in Lake County

Nearby Lakes in Lake County

DNR Fisheries Survey Summary

7 surveys on file from MN DNR Fisheries. Most recent: 2025-08-19 (Targeted Survey).

Top Species by Catch Rate

SpeciesAvg CPUEAvg Weight
Tullibee (Cisco)15.790.18 lb
Yellow Perch15.010.17 lb
White Sucker12.432.1 lb
Walleye8.451.29 lb
Largemouth Bass2.420.77 lb
Green Sunfish0.650.1 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.

Tullibee (Cisco)

1 fish · 77 in · 1995-06-26
107

Yellow Perch

14 fish · 611 in · 1995-06-26
630trophy 1267891011

White Sucker

97 fish · 722 in · 2015-06-08
23120810121416182022

Walleye

33 fish · 924 in · 2015-06-08
630trophy 241012141618202224

From the 2025-08-19 survey

Temperature and dissolved oxygen (DO) measurements were collected from the deepest basin in Vera Lake on August 19th, 2025, to evaluate the quantity and quality of cold, oxygenated water (i.e., oxythermal habitat) available to Cisco, also known as Tullibee, the most sensitive coldwater species present in this lake.…

Source: MN DNR LakeFinder Fisheries Lake Survey

DNR Reports & Resources

Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Vera Lake. 1 report on file.

EPA Impairment Status

Vera Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).

Causes of impairment

Mercury

A Total Maximum Daily Load (TMDL) plan has been approved.

Source: EPA ATTAINS assessment unit MN38-0491-00 · Official waterbody report

Data Sources

Water quality data from the EPA Water Quality Portal

Impairment status from EPA ATTAINS 303(d) database

Grading methodology based on Metropolitan Council standards

Lake details from Minnesota DNR LakeFinder

Most recent sample: 2023-07-21

Monitoring stations: 8