Trend of the Popularity of Brennan as a Male Baby Name in Colorado
Updated on December 6, 2025.
Data Source: Social Security Administration (SSA).
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In 2021, there were 5 male babies that were named Brennan in Colorado, which was 0.02% of the total number of male babies born in Colorado in 2021. Between 1985 and 2021, the name Brennan peaked as a male baby name in Colorado in 1998 with a count of 33 babies, which was 0.13% of the total male babies born in Colorado in 1998.
The first chart below show the trend of the number of male babies in Colorado that were named Brennan, and the second chart shows the percent of male babies in Colorado that were named Brennan.
Trend of the Number of Male Babies who were Named Brennan in Colorado
Trend of the Percentage of Male Babies who were Named Brennan in Colorado
The table below below shows the trend of the number of male babies and the percentage of male babies born in Colorado who were named Brennan from 1985 to 2021.
Trend of the Popularity of Brennan as a Male Baby Name in Colorado
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| Year | Number of Male Babies | Percent of Total Male Babies (%) |
|---|---|---|
| 1985 | 6 | 0.02 |
| 1986 | 7 | 0.03 |
| 1987 | 6 | 0.02 |
| 1988 | 5 | 0.02 |
| 1989 | 6 | 0.03 |
| 1990 | 17 | 0.07 |
| 1991 | 10 | 0.04 |
| 1992 | 12 | 0.05 |
| 1993 | 13 | 0.05 |
| 1994 | 13 | 0.05 |
| 1995 | 11 | 0.05 |
| 1996 | 12 | 0.05 |
| 1997 | 15 | 0.06 |
| 1998 | 33 | 0.13 |
| 1999 | 24 | 0.09 |
| 2000 | 29 | 0.10 |
| 2001 | 20 | 0.07 |
| 2002 | 25 | 0.08 |
| 2003 | 29 | 0.10 |
| 2004 | 12 | 0.04 |
| 2005 | 17 | 0.06 |
| 2006 | 18 | 0.06 |
| 2007 | 25 | 0.08 |
| 2008 | 21 | 0.07 |
| 2009 | 18 | 0.06 |
| 2010 | 23 | 0.08 |
| 2011 | 22 | 0.08 |
| 2012 | 11 | 0.04 |
| 2013 | 16 | 0.06 |
| 2014 | 15 | 0.06 |
| 2015 | 9 | 0.03 |
| 2016 | 7 | 0.03 |
| 2018 | 5 | 0.02 |
| 2020 | 5 | 0.02 |
| 2021 | 5 | 0.02 |