Kanji Learners Dictionary (Jack Halpern, 2 edition, 2013):
1824
Kodansha Kanji Dictionary (Jack Halpern, 2013):
2633
Morohashi Daikanwajiten (Volume 2, page 0133):
1592
New Japanese-English Character Dictionary (Jack Halpern, 1990):
2124
The New Nelson Japanese-English Character Dictionary (John Haig):
406