Demographic history of America ...

[Baruch]

Time lapse of US population density ...

https://www.visualcapitalist.com/visualizing-200-years-of-u-s-population-density/

My ancestors when they went West, really were on what was then the frontier.

[PopeyesPappy]

I can't say I'm in love with the map. It appears to show population density as land became an official territory and/or state. If so that is a bit misleading because people were moving into most of those areas well ahead of what is show on the map. Not to mention the natives that were already there.

[Cavebear]

Time lapse of US population density ...

https://www.visualcapitalist.com/visualizing-200-years-of-u-s-population-density/

My ancestors when they went West, really were on what was then the frontier.

I'll accept that as a general population change.  Rather nicely done.  I've bookmarked it.