Popularity in Northern Ireland
Numbers
| Erin (feminine) | |||
| Year | Rank | Percent Used | |
| 2023 | #34 | 0.535 | |
| 2022 | #16 | 0.781 | |
| 2021 | #21 | 0.708 | |
| 2020 | #18 | 0.787 | |
| 2019 | #23 | 0.770 | |
| 2018 | #16 | 0.847 | |
| 2017 | #17 | 0.859 | |
| 2016 | #19 | 0.833 | |
| 2015 | #24 | 0.742 | |
| 2014 | #24 | 0.827 | |
| 2013 | #14 | 1.102 | |
| 2012 | #19 | 1.084 | |
| 2011 | #20 | 1.004 | |
| 2010 | #17 | 1.089 | |
| 2009 | #5 | 1.536 | |
| 2008 | #11 | 1.336 | |
| 2007 | #9 | 1.441 | |
| 2006 | #10 | 1.412 | |
| 2005 | #16 | 1.356 | |
| 2004 | #17 | 1.254 | |
| 2003 | #15 | 1.394 | |
| 2002 | #19 | 1.218 | |
| 2001 | #13 | 1.424 | |
| 2000 | #22 | 1.010 | |
| 1999 | #27 | 0.799 | |
| 1998 | #24 | 0.947 | |
| 1997 | #25 | 0.740 | |
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