Water Resources of the United States


National Water Information System

View current and historical streamflow, ground-water level, and water-quality data

Today's Water Conditions

View comparisons of current and historical conditions using maps
Click map to go to current water resources conditions in the U.S.



USGS Water Science Centers are located in each state

Water Resources Programs

Local Water Resources Offices — State and Regional

The USGS manages water information at offices located throughout the United States. Although all offices are tied together through a nationwide computer network, each collects data and conducts studies in a particular area. Local information is best found at these sites.

USGS Programs Managed by the Water Resources Discipline

  • Cooperative Matching Funds
    Conducts data collection and investigations that form the foundation for water-resources management and planning activities nationwide, through partnerships with over 1,000 State and local agencies.
  • Water Resources Research Program
    Supports water resources research, education, and information transfer at the 54 university-based State Water Resources Research Institutes, through the use of matching grants.
  • Water Availability and Use Science Program (WAUSP)
    Provides a more accurate assessment of the status of the water resources of the U.S.; assists in the determination of the quantity and quality of water that is available for beneficial uses; identifies long-term trends in water availability; and develops the basis for an improved ability to forecast the availability of water for economic, energy production, and environmental uses.
  • Groundwater and Streamflow Information Program
    Identifies, measures, and assesses the Nation’s water resources and monitors groundwater and streamflow, including floods and droughts, related to groundwater resources at the regional/national scales.
  • National Water Quality Program
    Provides an understanding of water-quality conditions; whether conditions are getting better or worse over time; and how natural features and human activities affect those conditions.



  • National Water Census
    An initiative to provide a nationwide assessment of water availability and use. Information will be provided on components of the water budget, on water use, and ecological flow estimation. Regional Groundwater Studies will be expanded.

International Programs

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Page Last Modified: Monday, 05-Dec-2016 11:36:46 EST