Nymograph

Rio: popularity and history

Explore how often Rio appears in published U.S. birth-name records. Counts describe recorded births, not how many people with this name are alive today.

Female records

Latest dataset year: 2025. Most recent published observation for this name: 2025, with 105 births and rank 1,877.

First published birth year
1930
Total published births, 1930–2025
2,282
Best annual rank
1,679 in 2021
Rio · annual births per 10,000 published births in this recorded-sex population
0.000.380.76193019782025

The line shows relative use, not raw counts. Gaps are unpublished observations. Open the interactive chart for exact annual values.

Explore Rio: charts, comparisons, maps and PDF reports →

Published observations

Up to ten most recent published years, newest first. These may not be consecutive or recent calendar years. Missing records are unknown, not zero.

Rio · female records · most recent published years
YearBirthsRank
20251051,877
20241111,820
20231061,887
20221191,751
20211241,679
2020912,047
20191101,849
2018772,382
2017513,184
2016612,821
Latest ten dataset years (2016–2025)

Not published means no released observation; it does not establish zero births.

Rio · female records · latest calendar years, including gaps
YearBirthsRank
20251051,877
20241111,820
20231061,887
20221191,751
20211241,679
2020912,047
20191101,849
2018772,382
2017513,184
2016612,821

Male records

Latest dataset year: 2025. Most recent published observation for this name: 2025, with 563 births and rank 532.

First published birth year
1920
Total published births, 1920–2025
5,530
Best annual rank
517 in 2024
Rio · annual births per 10,000 published births in this recorded-sex population
0.001.723.44192019722025

The line shows relative use, not raw counts. Gaps are unpublished observations. Open the interactive chart for exact annual values.

Explore Rio: charts, comparisons, maps and PDF reports →

Published observations

Up to ten most recent published years, newest first. These may not be consecutive or recent calendar years. Missing records are unknown, not zero.

Rio · male records · most recent published years
YearBirthsRank
2025563532
2024593517
2023514571
2022530560
2021403671
2020305774
20191931,061
20181721,126
20171321,358
20161361,323
Latest ten dataset years (2016–2025)

Not published means no released observation; it does not establish zero births.

Rio · male records · latest calendar years, including gaps
YearBirthsRank
2025563532
2024593517
2023514571
2022530560
2021403671
2020305774
20191931,061
20181721,126
20171321,358
20161361,323

Nearby spellings in the directory

Alphabetical neighbors, not evidence of shared meaning, origin or popularity. Each spelling has its own recorded history.

Browse names starting with R

How to read these figures

An absent observation is not zero: small counts are withheld, and no published count may mean no births or a suppressed count. Early years are less complete. Recorded sex is a source category, not a rule about who may use a name. Annual ranks order published counts, with alphabetical tie-breaking. National and state totals need not match.

These records describe usage. They do not establish a name’s meaning, origin, ethnicity or pronunciation.