Rosio
Rosio was last recorded in 2023, when 5 babies were given it; 2,493 Americans have been recorded with it between 1963 and 2023 (Social Security Administration, published May 2026).
An estimated 2,410 Americans named Rosio and born in the U.S. are alive in 2026 (97% of everyone recorded); the median is 37 years old and half are between 30 and 46.
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Rosio by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
How popular is Rosio?
Unranked in 2025
Its last girls’ rank on record is #17,130, in 2023; SSA lists a name only in years with 5 or more births.
118 babies in 1981, the peak
Rosio peaked in 1981, when 118 girls were given it, #1,150 among girls’ names. It was not recorded in 2025.
| Year | Births | Rank | Per million girls |
|---|---|---|---|
| 2023 | 5 | #17,130 | 3.1 |
| 2019 | 5 | #17,506 | 3.0 |
| 2015 | 5 | #18,594 | 2.8 |
| 2014 | 8 | #12,837 | 4.5 |
| 2013 | 9 | #11,792 | 5.1 |
| 2012 | 8 | #13,219 | 4.5 |
| 2011 | 20 | #6,517 | 11.4 |
| 2010 | 12 | #9,680 | 6.8 |
| 2009 | 35 | #4,353 | 19.1 |
| 2008 | 23 | #6,098 | 12.2 |
Every recorded year (55)
| Year | Births | Rank | Per million girls |
|---|---|---|---|
| 2007 | 26 | #5,493 | 13.5 |
| 2006 | 27 | #5,200 | 14.2 |
| 2005 | 16 | #7,421 | 8.7 |
| 2004 | 59 | #2,768 | 32.1 |
| 2003 | 42 | #3,452 | 23.0 |
| 2002 | 52 | #2,878 | 28.9 |
| 2001 | 40 | #3,404 | 22.2 |
| 2000 | 45 | #3,106 | 24.8 |
| 1999 | 54 | #2,632 | 30.4 |
| 1998 | 41 | #3,101 | 23.2 |
| 1997 | 61 | #2,248 | 35.0 |
| 1996 | 64 | #2,141 | 36.5 |
| 1995 | 81 | #1,781 | 46.1 |
| 1994 | 95 | #1,599 | 53.2 |
| 1993 | 93 | #1,635 | 51.4 |
| 1992 | 100 | #1,560 | 54.2 |
| 1991 | 72 | #1,947 | 38.4 |
| 1990 | 71 | #1,945 | 37.4 |
| 1989 | 62 | #2,039 | 33.6 |
| 1988 | 55 | #2,118 | 30.9 |
| 1987 | 64 | #1,830 | 36.8 |
| 1986 | 71 | #1,662 | 41.4 |
| 1985 | 65 | #1,752 | 37.8 |
| 1984 | 66 | #1,677 | 39.2 |
| 1983 | 66 | #1,687 | 39.5 |
| 1982 | 89 | #1,381 | 52.6 |
| 1981 | 118 | #1,150 | 70.7 |
| 1980 | 89 | #1,405 | 53.6 |
| 1979 | 90 | #1,374 | 56.1 |
| 1978 | 67 | #1,611 | 43.7 |
| 1977 | 58 | #1,771 | 37.8 |
| 1976 | 60 | #1,656 | 41.0 |
| 1975 | 50 | #1,851 | 34.3 |
| 1974 | 51 | #1,768 | 34.8 |
| 1973 | 42 | #1,972 | 28.8 |
| 1972 | 26 | #2,725 | 17.1 |
| 1971 | 29 | #2,581 | 17.4 |
| 1970 | 20 | #3,289 | 11.4 |
| 1969 | 16 | #3,584 | 9.5 |
| 1968 | 12 | #4,175 | 7.3 |
| 1967 | 8 | #5,343 | 4.8 |
| 1966 | 11 | #4,154 | 6.5 |
| 1965 | 8 | #5,198 | 4.5 |
| 1964 | 6 | #6,624 | 3.2 |
| 1963 | 6 | #6,456 | 3.1 |
Ranks and shares: girls’ names in each year’s SSA file; share of all girls SSA recorded that year.
Is Rosio a boy’s or a girl’s name?
Rosio has been given almost only to girls: 19 boys in 55 years of records.
Girls and boys named Rosio: the SSA national file counts each sex separately.
How many people are named Rosio, and how old are they?
2,410 alive in 2026, estimated
That is 97% of the 2,493 Americans ever recorded as Rosio. The median Rosio alive today is 37 years old; half are between 30 and 46.
The 2020 Census counted 3,486 people named Rosio (3,467 women and girls, 19 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 2,428 born in the U.S. The Census count is 44% above that prediction. Possible reasons: the Census counts people born abroad, whom SSA’s files leave out, and it records the name people give, which SSA may have recorded under another spelling or as part of a compound name.
Alive today, by age
Alive today, by generation
| Generation | Born | Alive |
|---|---|---|
| Baby Boomers | 1946-1964 | 10 |
| Generation X | 1965-1980 | 600 |
| Millennials | 1981-1996 | 1,220 |
| Generation Z | 1997-2012 | 554 |
| Generation Alpha | 2013-2025 | 32 |
An estimate, not a count. SSA’s files count people born in the United States who received a Social Security number, so anyone born abroad is not in them; before 1937 most people got a number as adults, and their survival is counted from that age.
Living estimate: SSA births carried forward with the survival rates in SSA’s cohort life tables (2024 Trustees Report) for each birth year and sex. How the estimate is made. Count: Census Bureau, first names in the 2020 Census (released April 14, 2026; names reported 100 or more times, with the Bureau’s disclosure-avoidance adjustment).
Where are babies named Rosio born?
The states with the most babies named Rosio are California, Texas and Illinois, with 97% of its births recorded by state since 1910.
| State | Since 1910 | Rank, girls | vs. national |
|---|---|---|---|
| California | 1,223 | not ranked | 3.8× |
| Texas | 376 | not ranked | 1.8× |
| Illinois | 149 | not ranked | 1.2× |
| Arizona | 22 | not ranked | 0.5× |
| Florida | 14 | not ranked | 0.1× |
| New York | 6 | not ranked | 0.0× |
| North Carolina | 5 | not ranked | 0.1× |
| Washington | 5 | not ranked | 0.1× |
Where Rosio is more common than its national share predicts
Relative to its national share, Rosio is most over-represented in California: since 1963 it was given 3.8 times as often there as its national share each year would predict.
States: SSA state file, 1910-2025, published May 8, 2026; births count girls and boys together, and the rank is among girls’ names in the state in 2025. The file leaves out any state and year with fewer than 5 babies of the name, so small states are undercounted; each ratio compares the state’s births of Rosio with the births its national share predicts year by year, for states with at least 100 births of the name.
How common is the spelling Rosio?
Rosio is a less common spelling of Rocio: SSA has recorded 2,493 Rosio and 13,762 Rocio since 1880.
Of these 8 names spelled alike, given to 791,873 babies since 1880, Rosio is the seventh most given (<1% of them). In 2025 none of their 4,008 babies recorded by SSA was a Rosio (SSA lists a name only with 5 or more babies of one sex).
Spelled alike: names in the SSA national file with the same pattern of letters and sounds and at most two letters apart, and Wiktionary’s listed forms; births since 1880 and in 2025, and each name’s peak year, from the SSA national file, published May 8, 2026. Some are separate names, not spellings of one.
Names that rose and fell in the same decades as Rosio
Names whose births rose and fell across the same decades, measured on each decade’s share of births.
Similar histories: each decade’s share of births, from the SSA national file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
More about Rosio and names like it
- Compare Rosio and RocioBirths, ranks, peak and the living estimate side by side.
- The most given names of the 1980sRosio peaked in 1981.
- California’s most given namesThe state where SSA recorded the most babies named Rosio since 1910.
- The top names of 1981The year the most babies were named Rosio.
- The names of the MillennialsMost people named Rosio alive today were born 1981-1996.
- Names starting with RMost given first.