Kodansha Kanji Dictionary (Jack Halpern, 2013):
2055
Morohashi Daikanwajiten (Volume 10, page 0943):
37744
New Japanese-English Character Dictionary (Jack Halpern, 1990):
1626
The Modern Reader's Japanese-English Character Dictionary (Andrew Nelson):
4575
The New Nelson Japanese-English Character Dictionary (John Haig):
5895