The United States has recorded its slowest population growth since the Great Depression. The results of the country’s census also show more people are moving to southern and western states. The first batch of once-a-decade data from the US Census Bureau shows lower population growth in the United States than at any other time since the count began in 1790, except for the Great Depression-era 1930s. The LA Times reports that altogether, the U.S. population rose to 331,449,281 last year, the Census Bureau said, a 7.4% increase that was the second-slowest ever. Experts say that paltry pace reflects the combination of an aging population and slowing immigration.