Barlow Lake is a mesotrophic lake in Barry County, Michigan. Water quality is graded B based on 1 sampling years through 2022. Overall water quality is improving over recent sampling years. The lake supports 10 documented fish species including Bluegill, Bluntnose minnow, and Green sunfish. Public access is available with 1 public boat landing. Compared to the 13 other monitored lakes in Barry County, Barlow Lake ranks #9 for water quality.
Source: EPA Water Quality Portal sampling records, Michigan DNR, last sampled 2022-09-14. Grade methodology: LakeGrade methodology.
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Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Good clarity, visible to about 11 ft. Trophic State Index: 43.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 11 ft | B |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 43 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Barlow Lake
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Fish Species
Click a species to see every graded lake where it is documented.
Fishing Barlow Lake
Water Quality Trend: ↑ Improving
Based on 3 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +3.465 m/yr | 3 |
| Chlorophyll-a | ↑ Improving | -0.35 µg/L/yr | 3 |
Recreation & Access
Location & Depth Map
Free interactive depth-contour map of Barlow Lake, reaching a maximum surveyed depth of 60 ft. Toggle Depth contours to overlay the bathymetric survey lines. Contour data from Michigan DNR.
County Ranking
Ranked #9 of 14 lakes in Barry County
Cleaner Lakes Within 30 Miles
Barlow Lake holds Grade B. One nearby lake has a higher grade.
Nearby Lakes in Barry County
Explore Barlow Lake across LakeGrade
Fish species and top-graded lakes across Michigan
Fish species and best lakes in Barry County
Species activity outlook by water temperature and season
Where to stay at Michigan's top lakes, each with its grade
Moderate nutrients, good water quality
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Other Grade B Lakes in Michigan
Mesotrophic Lakes in Michigan
More records, surveys & data sources
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth is a modeled estimate.
Regulated Pollution Sources Nearby
5 EPA-permitted facilities operate within about 5 miles of Barlow Lake under Clean Water Act (NPDES) discharge permits. 3 facilities have a reported Clean Water Act violation in the past three years.
- Janose Farms-CafoMiddleville · 2.2 mi away · NPDES MI0059696Recent violation
- Bradford White CorpMiddleville · 4.2 mi away · NPDES MI0004405Recent violation
- Geukes MarketMiddleville · 4.3 mi away · NPDES MIG250277Recent violation
- Crystal Flash Limited PartnersMiddleville · 3.5 mi away · NPDES MIG080020
- Village Of MiddlevilleMiddleville · 4.8 mi away · NPDES MIG960011
Facilities permitted to discharge under the Clean Water Act within ~5 miles; proximity does not by itself mean a facility affects this lake. Source: EPA ECHO (ICIS-NPDES), as of 2026-07.
Data Sources
Water quality data from the EPA Water Quality Portal
Regulated discharger data from EPA ECHO (ICIS-NPDES)
Lake size & watershed from HydroLAKES (HydroSHEDS)
Grading methodology based on Metropolitan Council standards
Public boat-access points from the USGS National Boat Ramps inventory
Most recent sample: 2022-09-14
Monitoring stations: 1