Texas edges closer to California as the most populous state as the Lone Star state saw the largest population growth last year, according to the U.S. Census Bureau’s national and state population estimates of 2017.

Between July 2016 and July 2017, the U.S. population increased by 2.3 million, or 0.72 percent, bringing the nation’s total population to 325.7 million. In this 12-month span, Texas gained 399,734 residents, more than any other state in the country and remains the second most populous state with a population of 28,304,596, surpassed only by California with 39,536,653 residents.

International migration remains a critical factor in U.S. population growth, despite the first drop since 2012-13. Between 2016 and 2017, net international migration fell 1.8 percent. Still, in the last year, over 1.1 million people migrated to the United States.

The population of voting-age residents 18 and older increased from 2016’s 249.5 million people to 252.1 million in 2017. This 0.93 percent boost makes 77.4 percent of 2017’s total population residents of voting age.