The following resources currently hold government data, and are freely available to all users.
Census Reporter is an independent project to make data from the American Community Survey (ACS) easier to use. We are unaffiliated with the U.S. Census Bureau.
These suggestions come from various sources, including IASSIST, RDAP, Data Curation Network, BlueSky, LinkedIn, and others. A librarian at a university is compiling it. I am keeping the document unshared for the moment, but I can add suggestions. Feel free to email iassistdata@gmail.com if you have suggestions.
Created and maintained by the Research Department at the Federal Reserve Bank of St. Louis, FRED is an online database consisting of hundreds of thousands of economic data time series from scores of national, international, public, and private sources. Browse by 14 different categories.