18,976,457
New York State is 18,998,429 New York City is 8,125,497
An estimated 19.5 million residents in 2010. Perhaps a bit more and the 2010 US Census will be very interesting for several states in regard to their Congressional representation.
in 1969
According to the 1800 US Census it had 589,051 residents.
Travel Guide of Buffalo-Niagara, New York
Kristin Davis on Running for Office in New York
Carbon Copying Americans
Buffalo, NY and the Underground Railroad