For our purposes, we can summarize that while about 75% of Pacific Islanders live in the American West (mostly in Hawaiʻi and California), and after the West the South is the next biggest region of PIA settlement (historically why, though?), the Northeast does have its fair share of Pacific Islander Americans, too!
New York State Data
While only 4,457 Pacific Islanders were counted as living in New York State in the 1990 census, due to subsequent changes in reporting about race, that number rose to 8,818 New Yorkers in 2000 who claimed "Pacific Islander" as their sole race, and 28,612 total New Yorkers who claimed "Pacific Islander" as at least one part of their racial heritage.
The map on page 6 of the census report is particularly fascinating. Only 3 counties in NYS have a Pacific Islander population above 0.3% of the total county population (but in no counties in NYS do PIA constitute more than 1% of the population). What are these counties? Bronx, Tompkins, Jefferson.
Strange? Maybe. There must be historical reasons for why Pacific Islander migrants have congregated in these parts of NYS. As for the Bronx, there really could be numerically more Pacific Islanders in Brooklyn, or Queens, for example, but as a percentage of population, they'd be most likely to achieve high marks in the Bronx, or Staten Island, where total population numbers are lower. As for Tompkins County, does it have anything to do with Ithaca? the college student population? I don't know. And as for Jefferson County, is it Watertown? I just don't know, but with these latter two counties having total populations of around 100,000 people, this data suggests that 300-1,000 Pacific Islanders live in each of these counties. That's substantial.
What about New York City?
In 2000 New York City counted 5,430 persons with "Pacific Islander" as their sole race, and 19,203 New Yorkers who claimed part-"Pacific Islander" heritage. That is to say, around 2/3 of all Pacific Islander New Yorkers live in the city proper rather than upstate or on Long Island.
So...with the fifth largest Pacific Islander population in the nation, New York City must have Pacific Islander cultural institutions. Which we must explore at a later date.
...and I wonder, what will the 2010 census tell us?