Quote Originally Posted by mwilbert View Post
The population estimates can be quite far off. The estimates of population demographics should be reasonably close.

Don't think it is likely the city's population is below 600K though.
Agreed on the second part. If the demographic numbers are correct, we can expect Detroit's 2020 population to clock in around 640K - 650K. A decline of 60K is very close to the estimated population decline of Wayne County since 2010. The county's population declines tend to closely mirror Detroit's.