16,400,000 in Netherlands (2007 CBS). Population total all countries: 22,984,690.
Also in Aruba, Belgium (Flemish), Brazil, Canada, Caribbean Netherlands, Curacao, Germany, Sint Maarten, South Africa, Suriname, United States.
1 (National). De facto national language.
Northern North Hollandish (Westfries). Belgian variety of Dutch (not Vlaams [vls]) only slightly different from that of the Netherlands.
No dominant word order
Most speakers of other languages are also fluent in Dutch.