Water Resources of the United States


WATER DATA FOR THE NATION

National Water Information System (NWIS)

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

Data Discovery

For more data options, explore our data discovery tools.

Today's Water Conditions

View maps of current and historical conditions

Click map to go to current water resources conditions in the U.S.

Subscribe to hydrologic alerts:

WaterNow@usgs.gov

WATER SCIENCE SPECIALTIES

WATER SCIENCE BY STATE

USGS Water Science Centers are located in each state

Local Water Resources Offices

The USGS manages water information at offices located throughout the United States. Although all offices are tied together through a Nation-wide computer network, each collects data and conducts studies in a particular area. Local information is best found at sites listed below. If you can't find the information you want at one site, we recommend checking neighboring sites, as study areas sometimes overlap. Additional information also can be found under National Programs.

Map Access To Local Web Sites

Map of US


USGS Water Science Center Directors

Address, phone number and e-mail addresses for each Water Science Center Director, along with local office hours, are available for your convenience.

Access local web sites

NWISWeb State Pages

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Page Last Modified: Monday, 17-Jun-2013 08:13:20 EDT