I found this. If you want my source, Google the sentence which begins The 2010 Statistical Abstract, issued….
How many Jews are there in New York?
1,618,000.
The 2010 Statistical Abstract, issued by the US Census Bureau, reports that New York’s Jewish population comprises 1,618,000 people, which represents 8.4% of the state’s population. New York is the state with the highest Jewish population in the US; nearly a quarter of the all Jews in the country are New York residents.
This fact is verified on : May 7, 2010. All facts are verified every 6 month after the last modification.