In the News, Public Commentary

U.S. Census: How will the jump in multiracials affect politics?

U.S. census racial categories have shifted over centuries. How will the jump in multiracials affect politics?

Danielle Casarez Lemi & Sara Sadhwani
September 23, 2021

According to 2020 Census data, the number of individuals identifying with more than one race increased from 9 million in 2010 to 33.8 million today, an astonishing 276 percent. But has the group really expanded that dramatically — or have the census’s definitions changed over time? And what does that count mean for how Americans understand public policies that hinge on racial identification?

The census’s racial categories have shifted dramatically over the past two centuries

Many observers, including scholars Margo Anderson and Stephen E. Fienberg, have noted that in the United States, counting people has never been race-neutral. The U.S. census was created in 1790 to determine taxation; following the constitution, it counted enslaved Black people as three-fifths of a person.

Since then, the census’s racial categories have shifted as the United States’ demographics and politics have changed. Historically, the U.S. government subscribed to the false idea that race can be measured by fractions of a person’s ancestry; Black Americans, in particular, were legally subjected to this fiction. Until 1960, a census enumerator determined Americans’ race according to instructions for different racial categories on each census; from 1960 onward, most people identified their race in census forms mailed to them.