“Inwoodite” is the name of an inhabitant of Inwood, in the borough of Manhattan. The name “Inwoodite” has been cited in print since at least 1929.
   
 
Wikipedia: Inwood, Manhattan
Inwood is the northernmost neighborhood on Manhattan Island in the New York City borough of Manhattan.
 
7 April 1929, The Times-Picayune (New Orleans, LA), “A Lady with Money” by Vina Delmar, The Young People’s Paper (features section), pg. 6, col. 6:
Somehow, while she hadn’t been looking, Carlita had become an Inwoodite.
 
Google Books
Health Policy Advisory Center Bulletin
Issues 1-30
1968
Pg. 128:
Before the move to incorporate was agreed to (by a narrow margin) the Inwoodites put up a strong fight to stick with Columbia, which they thought could more quickly deliver up the services.
 
Google Books
The American Health Empire:
Power, Profits, and Politics
By Barbara Ehrenreich and John Ehrenreich
New York, NY: Random House’
1970
Pg. 91:
If C.M.H.B. were going to insist that the mental health center serve the blacks and Puerto Ricans of southern Washington Heights and West Harlem, the lower-class clientele would at least be counterbalanced by white Inwoodites.
 
Google Books
The New York Irish
Edited by Ronald H. Bayor and Timothy Meagher
Baltimore, MD: Johns Hopkins University Press
1996
Pg. 459:
Occasionally, such Irish Inwoodites and the newcomers achieved an inclusive sense of community: ...
 
New York (NY) Times
Next Stop: Chaos?
By ROBERT W. SNYDER
Published: March 27, 2005
(...)
The subway turned Brooklynites, Inwoodites, Astorians and Harlemites into New Yorkers.
   
StreetsBlog
Thursday, September 20, 2007
Inwoodites Want Changes at Deadly Broadway Intersection
by Brad Aaron
Residents near the border of Inwood and Washington Heights have seen enough crashes on Broadway at Dongan Place, and are pressuring officials to do something about it.
 
Google Books
The Kingdom of Inwood
By William Dyer
Lulu.com (KingdomOf Inwood.com)
2008
Pg. 63:
Being Friday, meat was not on the tables of most Inwoodites.
 
Manhattan Times
Crime, housing, and MTA issues raised at Espaillat town hall meeting in Washington Heights
Written by Mike Fitelson  
Friday, February 18, 2011
Over the years current Inwoodite Adriano Espaillat has lived on Cabrini Boulevard and sent his children to P.S. 187 down the street.