The baby name Louisa appears in baby name data for the United States from 1910 to 2024. It was most popular in 2021 with 448 babies given the name.
In the later years of this period, Louisa has become more popular compared with earlier years.
| Year | Count |
|---|---|
| 1910 | 34 |
| 1911 | 42 |
| 1912 | 52 |
| 1913 | 139 |
| 1914 | 136 |
| 1915 | 164 |
| 1916 | 200 |
| 1917 | 191 |
| 1918 | 161 |
| 1919 | 171 |
| 1920 | 156 |
| 1921 | 99 |
| 1922 | 91 |
| 1923 | 122 |
| 1924 | 146 |
| 1925 | 183 |
| 1926 | 138 |
| 1927 | 157 |
| 1928 | 121 |
| 1929 | 135 |
| 1930 | 133 |
| 1931 | 60 |
| 1932 | 100 |
| 1933 | 73 |
| 1934 | 88 |
| 1935 | 63 |
| 1936 | 81 |
| 1937 | 50 |
| 1938 | 49 |
| 1939 | 43 |
| 1940 | 65 |
| 1941 | 80 |
| 1942 | 41 |
| 1943 | 88 |
| 1944 | 48 |
| 1945 | 51 |
| 1946 | 64 |
| 1947 | 79 |
| 1948 | 48 |
| 1949 | 63 |
| 1950 | 113 |
| 1951 | 64 |
| 1952 | 81 |
| 1953 | 90 |
| 1954 | 91 |
| 1955 | 72 |
| 1956 | 77 |
| 1957 | 97 |
| 1958 | 115 |
| 1959 | 106 |
| 1960 | 125 |
| 1961 | 122 |
| 1962 | 59 |
| 1963 | 54 |
| 1964 | 60 |
| 1965 | 70 |
| 1966 | 75 |
| 1967 | 42 |
| 1968 | 76 |
| 1969 | 60 |
| 1970 | 60 |
| 1971 | 69 |
| 1972 | 38 |
| 1973 | 28 |
| 1974 | 26 |
| 1975 | 41 |
| 1976 | 19 |
| 1977 | 49 |
| 1978 | 62 |
| 1979 | 44 |
| 1980 | 68 |
| 1981 | 64 |
| 1982 | 49 |
| 1983 | 42 |
| 1984 | 64 |
| 1985 | 53 |
| 1986 | 37 |
| 1987 | 67 |
| 1988 | 17 |
| 1989 | 30 |
| 1990 | 57 |
| 1991 | 31 |
| 1992 | 79 |
| 1993 | 34 |
| 1994 | 18 |
| 1995 | 36 |
| 1996 | 51 |
| 1997 | 26 |
| 1998 | 80 |
| 1999 | 33 |
| 2000 | 14 |
| 2001 | 38 |
| 2002 | 46 |
| 2003 | 54 |
| 2004 | 82 |
| 2005 | 58 |
| 2006 | 49 |
| 2007 | 79 |
| 2008 | 53 |
| 2009 | 76 |
| 2010 | 97 |
| 2011 | 157 |
| 2012 | 199 |
| 2013 | 185 |
| 2014 | 227 |
| 2015 | 302 |
| 2016 | 359 |
| 2017 | 371 |
| 2018 | 354 |
| 2019 | 412 |
| 2020 | 409 |
| 2021 | 448 |
| 2022 | 353 |
| 2023 | 376 |
| 2024 | 393 |