Kodansha Kanji Dictionary (Jack Halpern, 2013):
3593
Morohashi Daikanwajiten (Volume 5, page 0559):
13417
New Japanese-English Character Dictionary (Jack Halpern, 1990):
2891
The Modern Reader's Japanese-English Character Dictionary (Andrew Nelson):
1373
The New Nelson Japanese-English Character Dictionary (John Haig):
2363