Toxic algae in Pinellas County, Florida
21 lakes and waterways have harmful algal bloom reports in Florida's official data.
Lakes with bloom history
| Lake | Years with reports | Most recent |
|---|---|---|
| Harbor Isle | 3 | 2022 |
| Harbor Isles | 1 | 2020 |
| Lake Seminole | 3 | 2025 |
| Harbor Lake | 1 | 2025 |
| Pasadena Lake | 1 | 2022 |
| Eagle Lake #2 | 1 | 2021 |
| Lake Tarpon | 1 | 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.
- Alligator Lake (2025)
- Bear Creek (2021)
- Boca Ciega Bay (2022)
- Broker Creek (2025)
- Eagle Lake (2025)
- Lake Disston (2022)
- Lake Maggiore (2025)
- Lake Seminole North (2019)
- Lake Seminole South (2019)
- Little Salt Lake (2022)
- Little Salt Lake Ne (2021)
- Round Lake (2021)
- Safety Harbor (2019)
- Woody Ibis Park Lake (2022)
Source: Florida Department of Environmental Protection (DEP), official data. For current conditions see the DEP Algal Bloom Dashboard.