Is it time to rethink the census and other surveys that measure changes in the U.S. population? Policymakers and demographers have been asking that question since results released by the U.S. Census Bureau this month showed Black, Hispanic, American Indian and other minority residents were undercounted at greater rates in 2020 than in the previous decade. On the top of that, results from a version of its most comprehensive survey that compares year-to-year changes in U.S. life had to be scrapped because disruptions caused by the pandemic produced fewer responses in 2020. “The current model of coming up with a...