We now know that on April 1 last year, the U.S. had 331.5 million residents, an increase from 2010 of only 7.4 percent, second smallest in the Census’ 230-year history to the 7.3 percent of the 1930 Great Depression decade.

This time, think aging population, delays in marrying and having children, and slower immigration.

What we also know now is more good news for Republicans. Six states will gain a total of seven additional House seats and electoral votes, most in Republican areas. Seven states, mostly Democratic and in the Rust Belt, will lose House seats and, thus, electoral votes.

Gainers are Florida, Montana, which regains the seat it lost three decades ago, North Carolina, Oregon, and two new seats go to Texas. That’s the result of about four million new residents, many of them financial refugees from California. Such historical internal migration to the Sun Belt continues but has slowed.