The baby name Isac appears in baby name data for the United States from 1921 to 2023. It was most popular in 2008 with 94 babies given the name.
In the later years of this period, Isac has become more popular compared with earlier years.
| Year | Count |
|---|---|
| 1921 | 10 |
| 1981 | 5 |
| 1985 | 10 |
| 1986 | 7 |
| 1990 | 6 |
| 1991 | 9 |
| 1992 | 8 |
| 1993 | 6 |
| 1994 | 11 |
| 1995 | 12 |
| 1996 | 20 |
| 1997 | 20 |
| 1998 | 13 |
| 1999 | 21 |
| 2000 | 14 |
| 2001 | 51 |
| 2002 | 22 |
| 2003 | 31 |
| 2004 | 27 |
| 2005 | 62 |
| 2006 | 50 |
| 2007 | 45 |
| 2008 | 94 |
| 2009 | 46 |
| 2010 | 25 |
| 2011 | 37 |
| 2012 | 28 |
| 2013 | 43 |
| 2014 | 30 |
| 2015 | 12 |
| 2017 | 5 |
| 2021 | 5 |
| 2022 | 10 |
| 2023 | 5 |