The baby name Alonzo appears in baby name data for the United States from 1910 to 2024. It was most popular in 1962 with 678 babies given the name.
In the later years of this period, Alonzo has become more popular compared with earlier years.
| Year | Count |
|---|---|
| 1910 | 81 |
| 1911 | 116 |
| 1912 | 155 |
| 1913 | 168 |
| 1914 | 205 |
| 1915 | 246 |
| 1916 | 290 |
| 1917 | 349 |
| 1918 | 351 |
| 1919 | 388 |
| 1920 | 386 |
| 1921 | 386 |
| 1922 | 401 |
| 1923 | 398 |
| 1924 | 417 |
| 1925 | 363 |
| 1926 | 395 |
| 1927 | 340 |
| 1928 | 318 |
| 1929 | 298 |
| 1930 | 339 |
| 1931 | 301 |
| 1932 | 304 |
| 1933 | 261 |
| 1934 | 281 |
| 1935 | 243 |
| 1936 | 222 |
| 1937 | 239 |
| 1938 | 229 |
| 1939 | 320 |
| 1940 | 292 |
| 1941 | 264 |
| 1942 | 284 |
| 1943 | 300 |
| 1944 | 259 |
| 1945 | 269 |
| 1946 | 276 |
| 1947 | 322 |
| 1948 | 443 |
| 1949 | 366 |
| 1950 | 457 |
| 1951 | 419 |
| 1952 | 402 |
| 1953 | 536 |
| 1954 | 417 |
| 1955 | 583 |
| 1956 | 590 |
| 1957 | 462 |
| 1958 | 591 |
| 1959 | 527 |
| 1960 | 568 |
| 1961 | 497 |
| 1962 | 678 |
| 1963 | 566 |
| 1964 | 483 |
| 1965 | 509 |
| 1966 | 399 |
| 1967 | 438 |
| 1968 | 429 |
| 1969 | 445 |
| 1970 | 433 |
| 1971 | 411 |
| 1972 | 371 |
| 1973 | 360 |
| 1974 | 291 |
| 1975 | 304 |
| 1976 | 325 |
| 1977 | 426 |
| 1978 | 260 |
| 1979 | 364 |
| 1980 | 376 |
| 1981 | 307 |
| 1982 | 325 |
| 1983 | 298 |
| 1984 | 286 |
| 1985 | 293 |
| 1986 | 330 |
| 1987 | 391 |
| 1988 | 444 |
| 1989 | 383 |
| 1990 | 408 |
| 1991 | 379 |
| 1992 | 474 |
| 1993 | 401 |
| 1994 | 461 |
| 1995 | 435 |
| 1996 | 365 |
| 1997 | 415 |
| 1998 | 319 |
| 1999 | 398 |
| 2000 | 427 |
| 2001 | 345 |
| 2002 | 364 |
| 2003 | 347 |
| 2004 | 373 |
| 2005 | 411 |
| 2006 | 453 |
| 2007 | 342 |
| 2008 | 411 |
| 2009 | 335 |
| 2010 | 397 |
| 2011 | 372 |
| 2012 | 487 |
| 2013 | 529 |
| 2014 | 455 |
| 2015 | 553 |
| 2016 | 542 |
| 2017 | 505 |
| 2018 | 588 |
| 2019 | 584 |
| 2020 | 460 |
| 2021 | 566 |
| 2022 | 590 |
| 2023 | 452 |
| 2024 | 520 |