Kodansha Kanji Dictionary (Jack Halpern, 2013):
3521
Morohashi Daikanwajiten (Volume 2, page 0159):
1695
New Japanese-English Character Dictionary (Jack Halpern, 1990):
2840
The Modern Reader's Japanese-English Character Dictionary (Andrew Nelson):
785
The New Nelson Japanese-English Character Dictionary (John Haig):
428