Lake Allatoona is a productive, nutrient-rich eutrophic lake in Cherokee County, Georgia. Water quality is graded C based on 1 sampling years through 2025. Compared to the 2 other monitored lakes in Cherokee County, Lake Allatoona ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, Georgia DNR, last sampled 2025-10-15. Grade methodology: LakeGrade methodology.
Watch Lake Allatoona water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Swim with caution, moderate algae may be present
Water Quality Grade: C, Fair
Murky, only visible to about 3.8 ft. Chlorophyll-a: 19 µg/L. Trophic State Index: 59.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3.8 ft | D |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | 19 µg/L | C |
| Trophic State Index (TSI) | 59 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Lake Allatoona
Compare lakeside cabins, hotels, and vacation rentals near Lake Allatoona in Cherokee County, Georgia — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near Lake Allatoona
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a trip to Lake Allatoona?
Get lake water-quality report cards plus the best cabin & lodging deals near Lake Allatoona — straight to your inbox. No spam, unsubscribe anytime.
Fishing Lake Allatoona
Location
County Ranking
Ranked #2 of 3 lakes in Cherokee County
Nearby Lakes in Cherokee County
Explore Lake Allatoona across LakeGrade
More Georgia Lake Rankings
Other Grade C Lakes in Georgia
Bartow County · Clarity: 7.5 ft
Bartow County · Clarity: 5.6 ft
Gilmer County · Clarity: 8.1 ft
Forsyth County · Clarity: 9.2 ft
Forsyth County · Clarity: 9.2 ft
Forsyth County · Clarity: 7.6 ft
Eutrophic Lakes in Georgia
More records, surveys & data sources
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2025-10-15
Monitoring stations: 1