Total babies named Kieffer (all years): 166
| Year | Boys (count / rank / %) |
|---|---|
| 2014 | 6 / #11492 / 0.000% |
| 2012 | 8 / #9337 / 0.000% |
| 2007 | 9 / #8609 / 0.000% |
| 2006 | 5 / #13124 / 0.000% |
| 2003 | 9 / #7575 / 0.000% |
| 2002 | 7 / #8975 / 0.000% |
| 2001 | 5 / #11565 / 0.000% |
| 1999 | 5 / #10857 / 0.000% |
| 1998 | 9 / #6593 / 0.000% |
| 1997 | 7 / #7736 / 0.000% |
| Year | Boys (count / rank / %) |
|---|---|
| 1996 | 16 / #4111 / 0.001% |
| 1995 | 7 / #7429 / 0.000% |
| 1994 | 17 / #3836 / 0.001% |
| 1993 | 9 / #6008 / 0.000% |
| 1992 | 16 / #3847 / 0.001% |
| 1991 | 11 / #4953 / 0.001% |
| 1990 | 14 / #4093 / 0.001% |
| 1989 | 6 / #7473 / 0.000% |