- U.S. Census Bureau
Get official data from the U.S. Census Bureau.
- U.S. Census Bureau: American FactFinder
A great source for population, housing, economic, and geographic data.
- USGS Science Explorer
A topical directory provides an alternate way to browse USGS science programs and activities. Explore within each topic by data, news, images, video, social media, and much more.
- United States Department of Agriculture National Agricultural Library
Contains information from 1970 to the present; articles, book chapters on agriculture, animal sciences, plant sciences, nutrition.
- U.S. Census Bureau: Geographies
The core TIGER/Line Files and Shapefiles do not include demographic data, but they do contain geographic entity codes (GEOIDs) that can be linked to the Census Bureau’s demographic data, available on American FactFinder.
- The American Community Survey (ACS)
The American Community Survey (ACS) helps local officials, community leaders, and businesses understand the changes taking place in their communities. It is the premier source for detailed population and housing information about our nation.
- NOAA National Centers for Environmental Information
NOAA's National Centers for Environmental Information (NCEI) is responsible for preserving, monitoring, assessing, and providing public access to the Nation's treasure of climate and historical weather data and information.
- Data.gov
Data.gov is the federal government’s open data site, and aims to make government more open and accountable. Opening government data increases citizen participation in government, creates opportunities for economic development, and informs decision making in both the private and public sectors.
- USDA Open Data Catalog
This catalog is the authoritative source of publicly available USDA data. Read more about the page and share your feedback by commenting on this blog post. To see all datasets please visit USDA Open Data Catalog.
- DOE (Department of Energy) Information Bridge
1995-present; provides access to full-text DOE research and development reports in physics, chemistry, materials, biology, environmental sciences, energy technologies, engineering, computer and information science, renewable energy, and other topics. [This resource is publicly available]
- GreenFile
Articles on human impact on the environment, covering global climate change, green building, pollution, sustainable agriculture, renewable energy, recycling, and more.
- FEMA Data Feeds
OpenFEMA delivers mission data to the public in machine readable formats.