Round Lake
Shiawassee County, Michigan11 acresView mapDirections
EGLE publishes the water-quality measurements for Round Lake. Here is what has been measured.
- Limited data
Round Lake in Shiawassee County, Michigan has water-quality measurements published by EGLE, shown here as reported. Water clarity: 6.5 ft visibility. Surface area: 11.2 acres.
Round Lake is a 11-acre lake in Shiawassee County, Michigan. Overall water quality is declining over recent sampling years. The lake supports 37 documented fish species including Black bullhead, Black crappie, and Blackchin shiner.
Source: EPA Water Quality Portal sampling records, EGLE, last sampled 2022-09-14. Methodology: how these readings are compared.
What Round Lake is good for
From access and monitoring records, not editorial picks.
- Fishing37 species recorded
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Round Lake is safe to swim in today is a call for the Michigan Department of Environment, Great Lakes, and Energy (EGLE) and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Round Lake
These are the measurements EGLE publishes for Round Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Murky, only visible to about 6.5 ft. TSI 50.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 6.5ft | 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. | 50 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Round Lake
Answers come straight from the public measurements and survey records on this page.
Water Temperature
Round Lake typically sits around 61°F at the surface in September. Summer average is about 60°F. Usually warmest in Aug (about 62°F) and coldest in May (about 53°F). These are typical values by month — not a live reading.
Column height runs from this lake’s coldest month (53°F) to its warmest (62°F).
Typical surface water temperature by month, from 197 field readings (2021–2023) via the EPA Water Quality Portal. See the full Round Lake water temperature breakdown →
Lake Details
Surface area
11 acres
No bathymetric survey has been published for Round Lake, so its depth is not documented here.
Stays via Stay22
Stays near Round Lake
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Fish Species
Click a species to see every lake where it is documented.
Fishing Round Lake
Water Quality Trend: Worsening
Based on 5 years of monitoring (2018–2023).
Water clarity
Improving5 years
Phosphorus
Worsening+4.88 µg/L/yr5 years
Chlorophyll-a
Worsening+1.84 µg/L/yr4 years
Nearby Lakes in Shiawassee County
Frequently asked questions about Round Lake
Where is Round Lake?
- Round Lake is a lake in Shiawassee County, Michigan. Its water-quality measurements are published by EGLE and shown on this page as reported.
What is the water quality of Round Lake?
- Round Lake in Shiawassee County, Michigan has water-quality measurements published by EGLE, shown here as reported. Water clarity: 6.5 ft visibility. Surface area: 11.2 acres.
Is Round Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
What is the water temperature of Round Lake?
- Round Lake typically sits around 61°F at the surface in September, from 197 EPA Water Quality Portal field readings (2021–2023). That is a typical value for the month, not a live reading.
What fish are in Round Lake?
- Fish species found in Round Lake include Black bullhead, Black crappie, Blackchin shiner, Blacknose shiner, Bluegill, Bluntnose minnow, Brassy minnow, Brook silverside, Brook stickleback, Central mudminnow, Common shiner, Fathead minnow, Golden shiner, Grass pickerel, Green sunfish, Iowa darter, Johnny darter, Lake chubsucker, Largemouth bass, Longnose gar, Muskellunge, Northern logperch, Northern longear sunfish, Northern pike, Pumpkinseed, Redear sunfish, Rock bass, Rosyface shiner, Smallmouth bass, Spotfin shiner, Spottail shiner, Spotted gar, Tadpole madtom, Western banded killifish, White sucker, Yellow bullhead, Yellow perch. Round Lake is located in Shiawassee County, Michigan.
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Where this data comes from
37 measurements from 1 monitoring station, 2021–2022. Retrieved from the EPA Water Quality Portal on 2026-08-26.
Collected and reported by
- North American Lake Management Society
NALMS37 samples · 2021–2022
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.