Kodansha Kanji Dictionary (Jack Halpern, 2013):
4303
Morohashi Daikanwajiten (Volume 2, page 0113):
1516
New Japanese-English Character Dictionary (Jack Halpern, 1990):
3492
The Modern Reader's Japanese-English Character Dictionary (Andrew Nelson):
169
The New Nelson Japanese-English Character Dictionary (John Haig):
390