Population of the US in TMP

[Craig67]

Your starting population seems high. A quick google search says for 2015 US population in 320 million. For a 1989 war date that number is 246 million.

I also think that the population will decline much faster in the first five years after the war. People are going to need at least that long to relearn essential survival skills (Farming, etc.) by trial and error. Many will never climb that steep learning curve.