Jordan Lake

Jordan Lake comes in at a B on the grading rubric — a respectable showing for a Minnesota lake of its size and depth. 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.

A TSI near 44 places Jordan Lake in the mesotrophic band — moderate productivity, with seasonal swings between clearer spring water and richer late-summer conditions. Jordan Lake is unusually deep for Minnesota at 66 ft, which buffers the lake against summer warming and helps the deep water stay oxygenated. At 142 acres, Jordan Lake fits the Minnesota median for monitored lakes, with 6.2 miles of shoreline. Among the 142 graded lakes in Lake County, Jordan Lake sits at rank 36, above the county median.

No invasive species are currently listed at Jordan Lake — the lake remains off the Minnesota infested-waters roster. The state fisheries records do not list documented species for Jordan Lake, which usually reflects a lack of formal fisheries survey work rather than an empty lake. The lake lacks a documented public access point, so visitor use is limited. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.