Originally Posted by
SJC ORD LDR
Miami and Nashville don't have a population of 800,000. But, Houston, San Antonio, and San Jose do have more than 800,000 and they don't have Sky Clubs.
City limit populations are meaningless when measuring catchment area. Obviously, people who live in adjoining towns/suburbs also use the airport. Most major airports aren't even in the city limits of the cities they serve. CSA (Combined Statistical Area), is a far better metric for air travel catchment populations.
CSA's (in millions):
BNA is 2.03
MIA is 6.8
Houston: 7.09
Bay area: 8.8
SAT is not part of a CSA due to geography, but MSA is 2.47mil.
https://en.wikipedia.org/wiki/Combined_statistical_area