Trend of the Popularity of Unknown as a Female Baby Name in the US
Updated on December 3, 2025.
Data Source: Social Security Administration (SSA).
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In 2024, there were 37 female babies that were named Unknown in the US, which was 0.00% of the total number of female babies born in the US in 2024. Between 1980 and 2024, the name Unknown peaked as a female baby name in the US in 1991 with a count of 258 babies, which was 0.01% of the total female babies born in the US in 1991.
The first chart below show the trend of the number of female babies in the US that were named Unknown, and the second chart shows the percent of female babies in the US that were named Unknown.
Trend of the Number of Female Babies who were Named Unknown in the US
Trend of the Percentage of Female Babies who were Named Unknown in the US
The table below below shows the trend of the number of female babies and the percentage of female babies born in the US who were named Unknown from 1980 to 2024.
Trend of the Popularity of Unknown as a Female Baby Name in the us
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| Year | Number of Female Babies | Percent of Total Female Babies (%) |
|---|---|---|
| 1980 | 7 | 0.00 |
| 1981 | 11 | 0.00 |
| 1982 | 16 | 0.00 |
| 1983 | 12 | 0.00 |
| 1984 | 7 | 0.00 |
| 1986 | 8 | 0.00 |
| 1987 | 18 | 0.00 |
| 1988 | 68 | 0.00 |
| 1989 | 251 | 0.01 |
| 1990 | 162 | 0.01 |
| 1991 | 258 | 0.01 |
| 1992 | 135 | 0.01 |
| 1993 | 94 | 0.01 |
| 1994 | 161 | 0.01 |
| 1995 | 223 | 0.01 |
| 1996 | 53 | 0.00 |
| 1997 | 16 | 0.00 |
| 1998 | 18 | 0.00 |
| 1999 | 26 | 0.00 |
| 2000 | 42 | 0.00 |
| 2001 | 28 | 0.00 |
| 2002 | 18 | 0.00 |
| 2003 | 30 | 0.00 |
| 2004 | 20 | 0.00 |
| 2005 | 25 | 0.00 |
| 2006 | 16 | 0.00 |
| 2007 | 31 | 0.00 |
| 2008 | 62 | 0.00 |
| 2009 | 84 | 0.01 |
| 2010 | 65 | 0.00 |
| 2011 | 77 | 0.00 |
| 2012 | 64 | 0.00 |
| 2013 | 68 | 0.00 |
| 2014 | 72 | 0.00 |
| 2015 | 43 | 0.00 |
| 2016 | 37 | 0.00 |
| 2017 | 47 | 0.00 |
| 2018 | 66 | 0.00 |
| 2019 | 53 | 0.00 |
| 2020 | 40 | 0.00 |
| 2021 | 49 | 0.00 |
| 2022 | 52 | 0.00 |
| 2023 | 46 | 0.00 |
| 2024 | 37 | 0.00 |