Kodansha Kanji Dictionary (Jack Halpern, 2013):
1406
Morohashi Daikanwajiten (Volume 7, page 0552):
19513
New Japanese-English Character Dictionary (Jack Halpern, 1990):
1098
The Modern Reader's Japanese-English Character Dictionary (Andrew Nelson):
2817
The New Nelson Japanese-English Character Dictionary (John Haig):
3503