Bay-St. Andrew Bay Lake
Bay County, FloridaLimited DataOligotrophic
Bay-St. Andrew Bay Lake is a cold, clear oligotrophic lake in Bay County, Florida. Water quality is graded A based on 1 sampling years through 2025. Compared to the 37 other monitored lakes in Bay County, Bay-St. Andrew Bay Lake ranks #1 for water quality.
Source: EPA Water Quality Portal sampling records, Florida DNR, last sampled 2025-08-22. Grade methodology: LakeGrade methodology.
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Swimming Safety
Excellent for swimming, crystal clear water with minimal algae
Water Quality Grade: A, Excellent
Good clarity, visible to about 14 ft. Trophic State Index: 39.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 14 ft | A |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 39 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Location
County Ranking
Ranked #1 of 38 lakes in Bay County
Nearby Lakes in Bay County
More Florida Lake Rankings
Other Grade A Lakes in Florida
Highlands County · Clarity: 16 ft
Walton County · Clarity: 9 ft
Highlands County · Clarity: 13.2 ft
Seminole County · Clarity: 11 ft
Seminole County · Clarity: 13 ft
Orange County · Clarity: 11.5 ft
Oligotrophic Lakes in Florida
Regulated Pollution Sources Nearby
1 EPA-permitted facility operate within about 5 miles of Bay-St. Andrew Bay Lake under Clean Water Act (NPDES) discharge permits.
- Chevron Products Company Inc - Panama City Terminal #1289731Panama City · 1.8 mi away · NPDES FL0175480
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)
Grading methodology based on Metropolitan Council standards
Most recent sample: 2025-08-22
Monitoring stations: 5
Where to stay near Bay-St. Andrew Bay Lake
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