Is July 31 a rare birthday? Popular
More common than 75% of all 366 dates.
July 31 in numbers
The odds, the star sign and the other dates that come with it.
Where July 31 ranks
From most common birthday to rarest, July 31 ranks in position #92, with 11,229 births a year. 274 other dates are rarer. 39 dates are within 1% of its count, anywhere from #65 to #104, so the exact position is a close thing.
July 31 through the years
Where it ranked in the United States, year by year.
common
July 31 in other countries
July 31 is the 92nd most common birthday in the United States. It is among the 50 most common in 5 of the 26 other countries, and ranges from #38 in Germany and the Netherlands to #337 in Chile.
Germany
#38 of 366
2,215 births on an average July 31
Destatis, 2014–2025Netherlands
#38 of 366
526 births on an average July 31
CBS, 1995–2025Hungary
#45 of 366
344 births on an average July 31
KSH, 1970–2020England & Wales
#46 of 366
1,838 births on an average July 31
ONS, 1995–2025Switzerland
#49 of 366
231 births on an average July 31
FSO, 1969–2025Belgium
#54 of 366
339 births on an average July 31
Statbel, 1992–2025Slovenia
#66 of 366
56 births on an average July 31
SURS, 2000–2025France
#67 of 366
2,215 births on an average July 31
INSEE, 1998–2024Denmark
#87 of 366
173 births on an average July 31
Statistics Denmark, 2007–2025Latvia
#88 of 366
56 births on an average July 31
CSB, 1996–2025Japan
#91 of 366
2,861 births on an average July 31
e-Stat, 1996–2025Finland
#109 of 366
145 births on an average July 31
Statistics Finland, 2010–2025Costa Rica
#132 of 366
171 births on an average July 31
INEC Costa Rica, 2014–2024Norway
#141 of 366
160 births on an average July 31
SSB, 2011–2025Ireland
#157 of 366
169 births on an average July 31
CSO, 1980–2023Mexico
#182 of 366
5,021 births on an average July 31
INEGI, 2017–2023Portugal
#211 of 366
296 births on an average July 31
INE Portugal, 1980–2025Ecuador
#228 of 366
754 births on an average July 31
INEC, 2013–2023Brazil
#284 of 366
7,607 births on an average July 31
DATASUS, 1997–2024Philippines
#289 of 366
4,269 births on an average July 31
PSA, 2006–2024Guatemala
#295 of 366
914 births on an average July 31
INE Guatemala, 2018–2024New Zealand
#310 of 366
154 births on an average July 31
Stats NZ, 1980–2023Argentina
#317 of 366
1,378 births on an average July 31
DEIS, 2018–2023Malaysia
#318 of 366
1,348 births on an average July 31
DOSM, 2000–2022Peru
#321 of 366
1,126 births on an average July 31
INEI, 2019–2025Chile
#337 of 366
660 births on an average July 31
DEIS, 1990–2017
Famous people born on July 31
Ranked by how often people looked them up on Wikipedia last year.
Kim Sae-ronSouth Korean actress · born 2000
J. K. RowlingBritish author · born 1965
Mark CubanAmerican businessman · born 1958
Dean CainAmerican actor · born 1966
Emilia FoxEnglish actress and presenter · born 1974
Wesley SnipesAmerican actor · born 1962
B. J. NovakAmerican actor · born 1979
Michael BiehnAmerican actor · born 1956July against the other eleven
July 31 is the 5th rarest of the 31 days in July. All July birthdays.
July is the 3rd most common month of the year
An average July day sees 11,238 births in the United States. September is the busiest month, January the quietest.
Quick answers
How many babies are born on July 31?
About 11,229 a year in the United States. It was at its most common in 1973, when 9,702 babies were born and it ranked #10 of 365; at its rarest in 2016, with 7,631 births at #323.
Is July 31 a common birthday?
In the United States, July 31 is the 92nd most common of 366 dates, with about 11,229 births a year. That puts it among the more common birthdays.
What is the rarest July birthday?
In the United States, July 4: the 4th rarest of all 366 dates, with about 8,692 births a year. The most common July birthday is July 7, the 5th most common of the year.
How precise is the ranking?
In the middle of the calendar it is not exact. 39 other dates are within 1% of July 31's count, spread from #65 to #104, so the position inside that group would shift with a different set of years. That band is the accurate answer; the rank is the simple one. At the ends — Christmas Day, New Year's Day — nothing is close.
Is July 31 rarer in other countries?
In some. It is rarer in 15 of the 26 other countries we hold daily records for. It is at its rarest in Chile, at #337 of 366, and at its most common in Germany and the Netherlands, at #38.
How this is counted
Every date is ranked by how many babies are born on it in the United States. Live births by day of birth from the CDC's National Center for Health Statistics, 1989–2024.
Updated October 2026