Water Data for the Nation

Find the water information you need

• Discover real-time data in your state

  

  State pages provide a summary of the latest continuous data being collected in your state. Quickly filter the map and list to show a data type of interest to you, or customize the filters to further refine the map and list to your needs.

  Select a State or Territory Page

  Select a state

  • Alabama
  • Alaska
  • Arizona
  • Arkansas
  • California
  • Colorado
  • Connecticut
  • Delaware
  • Florida
  • Georgia
  • Hawaii
  • Idaho
  • Illinois
  • Indiana
  • Iowa
  • Kansas
  • Kentucky
  • Louisiana
  • Maine
  • Maryland
  • Massachusetts
  • Michigan
  • Minnesota
  • Mississippi
  • Missouri
  • Montana
  • Nebraska
  • Nevada
  • New Hampshire
  • New Jersey
  • New Mexico
  • New York
  • North Carolina
  • North Dakota
  • Ohio
  • Oklahoma
  • Oregon
  • Pennsylvania
  • Rhode Island
  • South Carolina
  • South Dakota
  • Tennessee
  • Texas
  • Utah
  • Vermont
  • Virginia
  • Washington
  • West Virginia
  • Wisconsin
  • Wyoming
  • American Samoa
  • Guam
  • Northern Mariana Islands
  • Puerto Rico
  • Virgin Islands
  • District of Columbia
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• Create a list of your favorite monitoring locations

  

  Make and share a list of USGS monitoring locations that you are interested in. Access the latest continuous water data at those locations all in one place. Create combined location graphs or a custom list of data graphs from your favorites list.

  Go to My Favorites

• View latest conditions and weather events

  

  USGS has over 13,500 real-time stream, lake, reservoir, precipitation, water quality, and groundwater monitoring locations. View the latest continuous data in your area together with weather-related data to understand rapidly changing water conditions.

  Go to the National Water Dashboard

• Create a Water Alert

  

  USGS monitors water conditions nationwide. Get notified with WaterAlert, a near-real time hydrologic alerting system that notifies you of stream, lake, and coastal conditions across the nation. Subscribe to text or email alerts when water conditions change.

  Go to WaterAlert

• Explore historical water data

  

  USGS has collected water data throughout US states and territories for more than 135 years. Find historical and currently operational monitoring locations collecting continuous and discrete sample data that interests you. Filter using locations of interest, type of water data, and recency of data that meet your needs.

  Go to Explore USGS Water Data

• Access water data

  

  USGS has several options to support access to all water data available in Water Data for the Nation. Water Services provide USGS water data in machine-readable formats via REST APIs, a common framework applications use to search and download data. The dataRetrieval package simplifies the process of loading USGS water data into R or Python environments.

  Go to Water ServicesGo to dataRetrieval