<P> As of April 1 , 2010 , the date of the 2010 United States Census , the nine most populous U.S. states contain slightly more than half of the total population . The 25 least populous states contain less than one - sixth of the total population . California , the most populous state , contains more people than the 21 least populous states combined , and Wyoming is the least populous state , with a population less than the 31 most populous U.S. cities . </P>
<P> As of April 1 , 2010 , the date of the 2010 United States Census , the nine most populous U.S. states contain slightly more than half of the total population . The 25 least populous states contain less than one - sixth of the total population . California , the most populous state , contains more people than the 21 least populous states combined , and Wyoming is the least populous state , with a population less than the 31 most populous U.S. cities . </P>
which state in the us has the highest population
which state in the us has the highest population
California
California