The U.S. Census has reported that the multiracial population is growing rapidly, with the population expected to grow from nine million in 2010 to 33.8 million in 2020. However, outdated measurement systems are affecting elections, health risks, and civil rights laws enforcement. Multiracial respondents may identify as two races in one survey but only one in another. The same population can produce different answers depending on how race is measured. A study by UCLA's The Civil Rights Project suggests that census data includes 57 different racial combinations, raising questions about whether there is a coherent mixed-race experience for a person who reports to be mixed-raced white and Black. Courts often treat multirracial plaintiffs as belonging to a single minority group, obscuring how discrimination occurs. The study also found that mixed-rate individuals often experience discrimination similar to single-race minorities. The gap in data systems could leave millions miscounted, misunderstood and invisible in decisions that affect lives and relationships.