The U.S. Census Bureau runs many annual or monthly programs to guide congressional apportionment and federal funding. This data is a public good as it is non-rival and non-excludable. Anyone can use the data to conduct analysis and it is impossible to exclude as people are needed to conduct the polls. However, the Census suffers from the free rider problem, the poll rates have been falling over the past couple years. People will continue to use the data but fail to respond to polls sent out by the Bureau. As a result, the polls are not representative of the population they seek to emulate.
With the emergence of the iPhone and the increased digitalization, technology companies have unprecedented amounts of data on the U.S consumer. Along this shift, the government could turn to private companies to supplement or replace its own polling. This is already partially happening, the BLS uses a dataset purchased from J.D. Power to estimate its new-vehicles price index, and airline fares data from the Department of Transportation instead of running its own survey. If this trend continues, access to population data could depend on paying a company for it, turning a non-excludable public good into an excludable private one.