I think what he/she meant was 2 million households. You make a good point though, I can absolutely imagine laymen confusing "household" with "citizen".
I think so too, but still where on earth do I find household counts for a city? Population counts are on wikipedia, and I know rough numbers for a bunch of cities—but I have no clue when it comes to households. How many households are in your city? (and you're not allowed to calculate from population)
