Total babies named Rio (all years): 7,139
| Year | Boys (count / rank / %) |
|---|---|
| 2024 | 591 / #516 / 0.034% |
| 2023 | 514 / #570 / 0.030% |
| 2022 | 530 / #560 / 0.030% |
| 2021 | 401 / #673 / 0.023% |
| 2020 | 305 / #774 / 0.018% |
| 2019 | 193 / #1061 / 0.011% |
| 2018 | 172 / #1125 / 0.009% |
| 2017 | 132 / #1357 / 0.007% |
| 2016 | 135 / #1327 / 0.007% |
| 2015 | 103 / #1577 / 0.005% |
| Year | Boys (count / rank / %) |
|---|---|
| 2014 | 104 / #1547 / 0.005% |
| 2013 | 97 / #1599 / 0.005% |
| 2012 | 100 / #1585 / 0.005% |
| 2011 | 99 / #1576 / 0.005% |
| 2010 | 110 / #1490 / 0.006% |
| 2009 | 77 / #1883 / 0.004% |
| 2008 | 78 / #1871 / 0.004% |
| 2007 | 80 / #1826 / 0.004% |
| 2006 | 67 / #2005 / 0.003% |
| 2005 | 59 / #2107 / 0.003% |
| Year | Boys (count / rank / %) |
|---|---|
| 2004 | 64 / #1928 / 0.003% |
| 2003 | 49 / #2226 / 0.002% |
| 2002 | 52 / #2086 / 0.003% |
| 2001 | 48 / #2178 / 0.002% |
| 2000 | 62 / #1778 / 0.003% |
| 1999 | 40 / #2295 / 0.002% |
| 1998 | 50 / #1951 / 0.003% |
| 1997 | 42 / #2121 / 0.002% |
| 1996 | 45 / #1980 / 0.002% |
| 1995 | 46 / #1883 / 0.002% |
| Year | Boys (count / rank / %) |
|---|---|
| 1994 | 39 / #2114 / 0.002% |
| 1993 | 38 / #2118 / 0.002% |
| 1992 | 34 / #2247 / 0.002% |
| 1991 | 42 / #1888 / 0.002% |
| 1990 | 35 / #2118 / 0.002% |
| 1989 | 30 / #2284 / 0.002% |
| 1988 | 30 / #2126 / 0.002% |
| 1987 | 23 / #2451 / 0.001% |
| 1986 | 19 / #2763 / 0.001% |
| 1985 | 19 / #2685 / 0.001% |
| Year | Boys (count / rank / %) |
|---|---|
| 1984 | 22 / #2347 / 0.001% |
| 1983 | 16 / #2888 / 0.001% |
| 1982 | 7 / #5494 / 0.000% |
| 1981 | 13 / #3375 / 0.001% |
| 1980 | 12 / #3569 / 0.001% |
| 1979 | 10 / #4017 / 0.001% |
| 1978 | 15 / #2898 / 0.001% |
| 1977 | 11 / #3555 / 0.001% |
| 1976 | 8 / #4335 / 0.001% |
| 1975 | 13 / #3044 / 0.001% |
| Year | Boys (count / rank / %) |
|---|---|
| 1974 | 13 / #2912 / 0.001% |
| 1973 | 8 / #3980 / 0.001% |
| 1972 | 6 / #4861 / 0.000% |
| 1971 | 8 / #3888 / 0.000% |
| 1970 | 5 / #5293 / 0.000% |
| 1969 | 10 / #3024 / 0.001% |
| 1968 | 6 / #4046 / 0.000% |
| 1959 | 5 / #4460 / 0.000% |
| 1956 | 5 / #4358 / 0.000% |
| 1934 | 5 / #4116 / 0.000% |
| Year | Boys (count / rank / %) |
|---|---|
| 1930 | — |
| 1924 | 5 / #4837 / 0.000% |
| 1920 | 5 / #4840 / 0.000% |