Popularity in the United States
Numbers
| Declan (masculine) | |||
| Year | Rank | Percent Used | |
| 2023 | #132 | 0.153 | |
| 2022 | #114 | 0.178 | |
| 2021 | #105 | 0.194 | |
| 2020 | #102 | 0.195 | |
| 2019 | #95 | 0.207 | |
| 2018 | #101 | 0.196 | |
| 2017 | #115 | 0.175 | |
| 2016 | #109 | 0.179 | |
| 2015 | #112 | 0.175 | |
| 2014 | #123 | 0.162 | |
| 2013 | #121 | 0.154 | |
| 2012 | #143 | 0.137 | |
| 2011 | #176 | 0.107 | |
| 2010 | #274 | 0.061 | |
| 2009 | #309 | 0.049 | |
| 2008 | #347 | 0.043 | |
| 2007 | #348 | 0.042 | |
| 2006 | #366 | 0.037 | |
| 2005 | #353 | 0.040 | |
| 2004 | #431 | 0.029 | |
| 2003 | #423 | 0.029 | |
| 2002 | #441 | 0.027 | |
| 2001 | #454 | 0.026 | |
| 2000 | #544 | 0.019 | |
| 1999 | #569 | 0.017 | |
| 1998 | #710 | 0.012 | |
| 1997 | - | - | |
| 1996 | - | - | |
| 1995 | - | - | |
| 1994 | - | - | |
| 1993 | - | - | |
| 1992 | - | - | |
| 1991 | - | - | |
| 1990 | - | - | |
| 1989 | - | - | |
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| 1886 | - | - | |
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| 1884 | - | - | |
| 1883 | - | - | |
| 1882 | - | - | |
| 1881 | - | - | |
| 1880 | - | - | |
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