Popularity in England and Wales
Numbers
| Isobel (feminine) | |||
| Year | Rank | Percent Used | |
| 2023 | #220 | 0.074 | |
| 2022 | #195 | 0.089 | |
| 2021 | #160 | 0.106 | |
| 2020 | #159 | 0.105 | |
| 2019 | #151 | 0.107 | |
| 2018 | #145 | 0.112 | |
| 2017 | #149 | 0.111 | |
| 2016 | #136 | 0.121 | |
| 2015 | #113 | 0.152 | |
| 2014 | #111 | 0.150 | |
| 2013 | #89 | 0.181 | |
| 2012 | #98 | 0.165 | |
| 2011 | #80 | 0.214 | |
| 2010 | #75 | 0.232 | |
| 2009 | #60 | 0.296 | |
| 2008 | #59 | 0.308 | |
| 2007 | #57 | 0.326 | |
| 2006 | #54 | 0.320 | |
| 2005 | #51 | 0.348 | |
| 2004 | #53 | 0.345 | |
| 2003 | #50 | 0.346 | |
| 2002 | #53 | 0.331 | |
| 2001 | #55 | 0.327 | |
| 2000 | #56 | 0.321 | |
| 1999 | #55 | 0.312 | |
| 1998 | #76 | 0.226 | |
| 1997 | #77 | 0.208 | |
| 1996 | #94 | 0.165 | |
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