How America Has Changed Since the First Census in 1790

2010: Same-sex married couples are included
- U.S. resident population: 308,745,538
- Number of official states: 50
- Median age of population: 37.2
- Immigrants obtaining legal resident status: 1,042,625
- Biggest cities: New York, NY (Population: 8,175,133), Los Angeles, CA (3,792,621), Chicago, IL (2,695,598)
LGBTQ+ respondents to the 2010 census could mark their spouses as “husband or wife” for the first time, while an “unmarried partner” option was still available for same-sex and opposite-sex couples alike.
The 2010 census was publicized with the most extensive outreach campaign yet, including a road tour, a national “Teach Census Week,” and advertisements in 28 languages.