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FreeGovernmentUnited States
Hydro Network Linked Data API
RESTful National Hydrography API
api.water.usgs.gov
At a glance
- Region
- United States
- Coverage
- National Hydrography dataset
- Access
- Free
- Category
- Government
- Last updated
- 2025
What's inside
- API Access
- Linked Data
- RESTful API
- NHD Dataset
- Web Services
What you can do with it
Typical work that data of this type supports.
- 01
Coverage gaps
Find who lacks safe water or sanitation.
- 02
Benchmarking
Compare utilities on service and losses.
- 03
Investment
Prioritise where new plants and networks should go.
Where AI adds value
Ideas for machine learning and AI agents built on this kind of data.
- 01
Failure prediction
Predict pipe bursts and plant failures before they happen.
- 02
Demand forecasts
Forecast daily demand for pumping and storage.
- 03
Document extraction
Pull numbers out of PDFs and reports automatically.
Machine access and documentation
Open API
Machine-readable endpoint on api.water.usgs.gov
Licence: USGS public domain
Listed in our registry of open water APIs, which WaterDataGPT can query live.
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- FEMA National Flood Hazard LayerUnited States | Free
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