Kanji & Kana (Spahn & Hadamitzky, 2 edition):
2148
Kanji Learners Dictionary (Jack Halpern, 1999):
1837
Kanji Learners Dictionary (Jack Halpern, 2 edition, 2013):
2499
Kodansha Kanji Dictionary (Jack Halpern, 2013):
3559
The New Nelson Japanese-English Character Dictionary (John Haig):
3464