Toxic algae in Duval County, Florida
25 lakes and waterways have harmful algal bloom reports in Florida's official data.
Lakes with bloom history
| Lake | Years with reports | Most recent |
|---|---|---|
| St Johns River | 8 | 2025 |
| Ortega River | 6 | 2024 |
| Christopher Creek | 1 | 2021 |
| Cedar River | 2 | 2023 |
| Goodbys Creek | 2 | 2021 |
| Pottsburg Creek | 1 | 2021 |
| Trout River | 1 | 2021 |
| Clapboard Creek | 2 | 2024 |
Other waterbodies with a report
These have one or two reports in a single year, so there isn't enough history for a page of their own yet.
- Arlington River (2019)
- Brown Lake Whatley Memorial Park Stream (2021)
- Canal To Mill Cove (2020)
- Dunn Creek (2021)
- Julington Creek (2019)
- Little Pottsburg Creek (2025)
- Marco Lake (2019)
- Miramar Creek (2020)
- New Rose Creek (2025)
- Ribault River (2025)
- San Marco Lake Canal (2020)
- Spoonbill Pond (2020)
- St John'S River Shoreline/Goodby'S Creek (2018)
- St Johns River Downtown Jacksonville (2019)
- Sweetwater Lake (2018)
- West Of Julington Creek Mouth (2017)
- Willow Branch (2021)
Source: Florida Department of Environmental Protection (DEP), official data. For current conditions see the DEP Algal Bloom Dashboard.