Here are some of the population trends between 1800 and 1820:
1. There was a dramatic growth west of the Appalachians - more and more people came to this location
2. The
population between 1800 and 1820s dramatically increased when the US
added four new states white settlers population increased to more than
2.4 million
3. the population of Ohio increased 136,00 people
Some, or all of these options can be applied to your question.