The next census is getting another update.
Aside from the addition of a controversial citizenship question, the 2020 census will also count same-sex couples for the first time in U.S. history, the Census Bureau recently announced.
Previously, the census gathered data about coupled households with two options: "husband or wife" or "unmarried partner." Now, people will able to check "opposite-sex husband/wife/spouse," "same-sex husband/wife/spouse," "opposite-sex unmarried partner," or "same-sex unmarried partner."
The Census Bureau told NBC News that the 2015 Supreme Court decision that legalized same-sex marriage on a federal level made the change necessary. The number of same-sex couples has previously been estimated by cross-checking spouses' answers to the form's gender question.
Census data, collected once a decade, helps determine how to allocate federal funding to state and local governments, as well as assists in assigning the number of seats in the House of Representatives for each state. Many advocacy groups have pushed for the census to include a question about same-sex couples, NBC News reports.