Popularity in Northern Ireland
Numbers
| Heidi (feminine) | |||
| Year | Rank | Percent Used | |
| 2023 | #66 | 0.313 | |
| 2022 | #73 | 0.283 | |
| 2021 | #48 | 0.447 | |
| 2020 | #63 | 0.329 | |
| 2019 | #57 | 0.362 | |
| 2018 | #72 | 0.294 | |
| 2017 | #62 | 0.340 | |
| 2016 | #61 | 0.335 | |
| 2015 | #57 | 0.350 | |
| 2014 | #99 | 0.203 | |
| 2013 | - | - | |
| 2012 | #94 | 0.220 | |
| 2011 | #69 | 0.289 | |
| 2010 | #96 | 0.226 | |
| 2009 | #86 | 0.231 | |
| 2008 | - | - | |
| 2007 | - | - | |
| 2006 | - | - | |
| 2005 | - | - | |
| 2004 | - | - | |
| 2003 | - | - | |
| 2002 | - | - | |
| 2001 | - | - | |
| 2000 | - | - | |
| 1999 | - | - | |
| 1998 | - | - | |
| 1997 | - | - | |
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