Is September 11 a rare birthday? Ordinary
More common than 73% of all 366 dates.
September 11 in numbers
The odds, the star sign and the other dates that come with it.
Where September 11 ranks
From most common birthday to rarest, September 11 ranks in position #98, with 11,167 births a year. 268 other dates are rarer. 31 dates are within 1% of its count, anywhere from #84 to #115, so the exact position is a close thing.
September 11 through the years
Where it ranked in the United States, year by year.
common
September 11 in other countries
September 11 is the 98th most common birthday in the United States. It is among the 50 most common in 10 of the 26 other countries, and ranges from #9 in Mexico to #341 in Chile.
Mexico
#9 of 366
5,893 births on an average September 11
INEGI, 2017–2023Guatemala
#14 of 366
1,050 births on an average September 11
INE Guatemala, 2018–2024Philippines
#19 of 366
5,187 births on an average September 11
PSA, 2006–2024Netherlands
#21 of 366
531 births on an average September 11
CBS, 1995–2025Portugal
#22 of 366
314 births on an average September 11
INE Portugal, 1980–2025Costa Rica
#23 of 366
182 births on an average September 11
INEC Costa Rica, 2014–2024England & Wales
#29 of 366
1,855 births on an average September 11
ONS, 1995–2025Japan
#44 of 366
2,931 births on an average September 11
e-Stat, 1996–2025Malaysia
#48 of 366
1,466 births on an average September 11
DOSM, 2000–2022Hungary
#50 of 366
343 births on an average September 11
KSH, 1970–2020Germany
#70 of 366
2,173 births on an average September 11
Destatis, 2014–2025New Zealand
#85 of 366
160 births on an average September 11
Stats NZ, 1980–2023Slovenia
#94 of 366
55 births on an average September 11
SURS, 2000–2025Ecuador
#96 of 366
785 births on an average September 11
INEC, 2013–2023France
#111 of 366
2,193 births on an average September 11
INSEE, 1998–2024Peru
#114 of 366
1,225 births on an average September 11
INEI, 2019–2025Belgium
#123 of 366
332 births on an average September 11
Statbel, 1992–2025Ireland
#133 of 366
169 births on an average September 11
CSO, 1980–2023Finland
#138 of 366
144 births on an average September 11
Statistics Finland, 2010–2025Denmark
#144 of 366
167 births on an average September 11
Statistics Denmark, 2007–2025Brazil
#182 of 366
8,002 births on an average September 11
DATASUS, 1997–2024Latvia
#182 of 366
54 births on an average September 11
CSB, 1996–2025Norway
#189 of 366
156 births on an average September 11
SSB, 2011–2025Argentina
#216 of 366
1,481 births on an average September 11
DEIS, 2018–2023Switzerland
#253 of 366
219 births on an average September 11
FSO, 1969–2025Chile
#341 of 366
658 births on an average September 11
DEIS, 1990–2017
Famous people born on September 11
Ranked by how often people looked them up on Wikipedia last year.
Bashar al-AssadPresident of Syria from 2000 to 2024 · born 1965
Amy MadiganAmerican actress · born 1950
Taraji P. HensonAmerican actress · born 1970
Virginia MadsenAmerican actress and film producer · born 1961
Scott PattersonAmerican actor and former baseball player · born 1958
Harry Connick Jr.American musician and actor · born 1967
Brian De PalmaAmerican filmmaker · born 1940
LudacrisAmerican rapper · born 1977September against the other eleven
September 11 is the 8th rarest of the 30 days in September. All September birthdays.
September is the most common month of the year
An average September day sees 11,448 births in the United States. September is the busiest month, January the quietest.
Quick answers
How many babies are born on September 11?
About 11,167 a year in the United States. It was at its most common in 1987, when 12,351 babies were born and it ranked #1 of 365; at its rarest in 1994, with 8,373 births at #326.
Is September 11 a common birthday?
In the United States, September 11 is the 98th most common of 366 dates, with about 11,167 births a year. That makes it an ordinary birthday: neither rare nor especially common.
What is the rarest September birthday?
In the United States, September 2: the 118th rarest of all 366 dates, with about 10,653 births a year. The most common September birthday is September 9, the most common of the year.
How precise is the ranking?
In the middle of the calendar it is not exact. 31 other dates are within 1% of September 11's count, spread from #84 to #115, 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 September 11 rarer in other countries?
In some. It is rarer in 12 of the 26 other countries we hold daily records for. It is at its rarest in Chile, at #341 of 366, and at its most common in Mexico, at #9.
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