228 Area andPopulation ,1800

228.Area andPopulation ,1800

The area of the United States in 1800 was the same as at the close of the Revolutionary War . But the population had begun to in - crease rapidly . In 1791 there were nearly four million people in the United States . By 1800 this number had risen to five and one - quarter millions . Two - thirds of the people still lived on or near tide - water . But already nearly four hun - dred thousand people lived west of the Alleghanies . In 1791 the centre of population had been east of Bal - timore . It was now eighteen miles west of that city ( p .157).