[25]
[50]
[1]
All language data is from the U.S. Census 2000, Summary File 3 (Sample Data), “PCT10. Age by Language Spoken at Home for the Population 5+ Years.”
All New York spatial data is from Bytes of the Big Apple, census tract (2000).
All other spatial data (the United States and the World) is from Columbia University Spatial Data Catalog.
A similar thematic map is available from the MLA.