Kodansha Kanji Dictionary (Jack Halpern, 2013):
2134
Morohashi Daikanwajiten (Volume 6, page 0779):
16646
New Japanese-English Character Dictionary (Jack Halpern, 1990):
1699
The Modern Reader's Japanese-English Character Dictionary (Andrew Nelson):
2457
The New Nelson Japanese-English Character Dictionary (John Haig):
2997