Montclair ( or ) is a township in Essex County, New Jersey, United States.
 As of the 2010 United States Census, the township's population was 37,669, reflecting a decline of 1,308 (-3.4%) from the 38,977 counted in the 2000 Census, which had in turn increased by 1,248 (+3.3%) from the 37,729 counted in the 1990 Census.
 s of 2010 , it was the 60th-most-populous municipality in New Jersey.
Egon Hostovský (23 April 1908, Hronov – 7 May 1973, Montclair), was a Czech writer.
 He was related to the Austrian writer Stefan Zweig.
 Hostovský described Zweig as "a very distant relative"; some sources describe them as cousins.

Question: What was the population in the 2010 census of the township in which Egon Hostovský died?
Answer: 37,669