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Saint Johns River - Flow Data By River Segment

The table below shows water quality and/or hydrology information for this river at the individual reach segment level. Reach codes are unique identifiers maintained for each river and stream segment. The map viewer designed to display this information has been temporarily disabled due to performance issues. Until a more reliable alternative is implemented, please download the hydrography GIS data directly via the Advanced Mapping Tool and query the reach segments via a standalone GIS application such as ArcGIS Explorer.

 
Reach ID Data Source Station Latest
Value
Date Historic
Average
Historic Range Graph Trend
03080103000057 USGS_NWIS 02244040 2330 cfs 8/21/2025 6146 cfs 0.6 - 25950 cfs Graph Trend
03080103000019 USGS_NWIS 02246500 8290 cfs 8/16/2025 12914 cfs 4 - 141500 cfs Graph Trend
03080101053201 USGS_NWIS 02232000 717 cfs 8/21/2025 692 cfs 0 - 18000 cfs Graph Trend
03080101028692 USGS_NWIS 02232500 1330 cfs 8/21/2025 1280 cfs -137 - 11600 cfs Graph Trend
03080101026160 WIN_21FLCEN G2CE0202 0.2 cfs 2/20/2019 0 cfs 0.2 - 0.2 cfs Graph Trend
03080101024809 USGS_NWIS 02236000 3790 cfs 8/21/2025 3066 cfs -3260 - 17900 cfs Graph Trend
03080101023813 USGS_NWIS 02232400 1040 cfs 8/21/2025 1011 cfs -332 - 10700 cfs Graph Trend
03080101018665 USGS_NWIS 02234000 2810 cfs 8/21/2025 1884 cfs -310 - 14900 cfs Graph Trend
03080101012570 USGS_NWIS 02236125 2990 cfs 8/21/2025 3366 cfs -6180 - 17100 cfs Graph Trend
03080101011878 USGS_NWIS 02234500 3230 cfs 8/21/2025 2369 cfs -2160 - 17500 cfs Graph Trend
 
*Negative values indicate backward flow due to tidal influences

To download data, visit the Data Download Tool in the Research section of the Seminole County Water Resources Atlas.

To view data spatially, visit the Interactive Mapping Application of the Seminole County Water Resources Atlas.

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