The baby name Katy appears in baby name data for the United States from 1911 to 2024. It was most popular in 1987 with 861 babies given the name.
In the later years of this period, Katy has become more popular compared with earlier years.
| Year | Count |
|---|---|
| 1911 | 14 |
| 1913 | 24 |
| 1914 | 24 |
| 1915 | 33 |
| 1916 | 28 |
| 1917 | 42 |
| 1918 | 20 |
| 1919 | 24 |
| 1920 | 26 |
| 1921 | 7 |
| 1922 | 14 |
| 1923 | 31 |
| 1924 | 35 |
| 1925 | 55 |
| 1926 | 39 |
| 1927 | 48 |
| 1928 | 22 |
| 1929 | 56 |
| 1930 | 48 |
| 1931 | 21 |
| 1932 | 10 |
| 1933 | 50 |
| 1934 | 32 |
| 1935 | 73 |
| 1936 | 50 |
| 1937 | 46 |
| 1938 | 23 |
| 1939 | 38 |
| 1940 | 46 |
| 1941 | 52 |
| 1942 | 11 |
| 1943 | 45 |
| 1944 | 10 |
| 1947 | 5 |
| 1948 | 31 |
| 1949 | 18 |
| 1950 | 52 |
| 1951 | 23 |
| 1952 | 15 |
| 1953 | 11 |
| 1954 | 31 |
| 1955 | 12 |
| 1956 | 10 |
| 1957 | 52 |
| 1958 | 86 |
| 1959 | 91 |
| 1960 | 139 |
| 1961 | 101 |
| 1962 | 104 |
| 1963 | 86 |
| 1964 | 90 |
| 1965 | 46 |
| 1966 | 15 |
| 1967 | 16 |
| 1968 | 58 |
| 1969 | 56 |
| 1970 | 115 |
| 1971 | 90 |
| 1972 | 112 |
| 1973 | 90 |
| 1974 | 166 |
| 1975 | 163 |
| 1976 | 183 |
| 1977 | 322 |
| 1978 | 460 |
| 1979 | 513 |
| 1980 | 579 |
| 1981 | 602 |
| 1982 | 566 |
| 1983 | 611 |
| 1984 | 602 |
| 1985 | 683 |
| 1986 | 780 |
| 1987 | 861 |
| 1988 | 742 |
| 1989 | 704 |
| 1990 | 412 |
| 1991 | 432 |
| 1992 | 408 |
| 1993 | 363 |
| 1994 | 285 |
| 1995 | 252 |
| 1996 | 227 |
| 1997 | 294 |
| 1998 | 221 |
| 1999 | 171 |
| 2000 | 117 |
| 2001 | 102 |
| 2002 | 141 |
| 2003 | 120 |
| 2004 | 229 |
| 2005 | 228 |
| 2006 | 133 |
| 2007 | 189 |
| 2008 | 183 |
| 2009 | 126 |
| 2010 | 85 |
| 2011 | 120 |
| 2012 | 111 |
| 2013 | 40 |
| 2014 | 91 |
| 2015 | 116 |
| 2016 | 90 |
| 2017 | 59 |
| 2018 | 63 |
| 2019 | 42 |
| 2020 | 41 |
| 2021 | 36 |
| 2022 | 23 |
| 2023 | 61 |
| 2024 | 27 |