Is September 23 a rare birthday? Popular
More common than 95% of all 366 dates.
September 23 in numbers
The odds, the star sign and the other dates that come with it.
Where September 23 ranks
From most common birthday to rarest, September 23 ranks in position #21, with 11,559 births a year. 345 other dates are rarer. 27 dates are within 1% of its count, anywhere from #13 to #40, so the exact position is a close thing.
September 23 through the years
Where it ranked in the United States, year by year.
common
September 23 in other countries
September 23 is the 21st most common birthday in the United States. It is among the 50 most common in 21 of the 26 other countries, and ranges from #4 in England & Wales and Hungary to #348 in Japan.
England & Wales
#4 of 366
1,920 births on an average September 23
ONS, 1995–2025Hungary
#4 of 366
356 births on an average September 23
KSH, 1970–2020Ireland
#5 of 366
185 births on an average September 23
CSO, 1980–2023Germany
#6 of 366
2,281 births on an average September 23
Destatis, 2014–2025Chile
#7 of 366
785 births on an average September 23
DEIS, 1990–2017Costa Rica
#7 of 366
188 births on an average September 23
INEC Costa Rica, 2014–2024Portugal
#7 of 366
326 births on an average September 23
INE Portugal, 1980–2025Netherlands
#9 of 366
539 births on an average September 23
CBS, 1995–2025New Zealand
#10 of 366
169 births on an average September 23
Stats NZ, 1980–2023Finland
#12 of 366
151 births on an average September 23
Statistics Finland, 2010–2025Malaysia
#12 of 366
1,508 births on an average September 23
DOSM, 2000–2022Denmark
#13 of 366
181 births on an average September 23
Statistics Denmark, 2007–2025Latvia
#16 of 366
59 births on an average September 23
CSB, 1996–2025France
#17 of 366
2,264 births on an average September 23
INSEE, 1998–2024Philippines
#17 of 366
5,207 births on an average September 23
PSA, 2006–2024Guatemala
#20 of 366
1,038 births on an average September 23
INE Guatemala, 2018–2024Switzerland
#23 of 366
232 births on an average September 23
FSO, 1969–2025Belgium
#25 of 366
345 births on an average September 23
Statbel, 1992–2025Mexico
#26 of 366
5,618 births on an average September 23
INEGI, 2017–2023Slovenia
#30 of 366
58 births on an average September 23
SURS, 2000–2025Peru
#31 of 366
1,274 births on an average September 23
INEI, 2019–2025Ecuador
#115 of 366
780 births on an average September 23
INEC, 2013–2023Norway
#159 of 366
158 births on an average September 23
SSB, 2011–2025Brazil
#178 of 366
8,027 births on an average September 23
DATASUS, 1997–2024Argentina
#270 of 366
1,425 births on an average September 23
DEIS, 2018–2023Japan
#348 of 366
2,418 births on an average September 23
e-Stat, 1996–2025
Famous people born on September 23
Ranked by how often people looked them up on Wikipedia last year.
Bruce SpringsteenAmerican musician and songwriter · born 1949
AugustusRoman emperor from 27 BC to AD 14 · born -63
Anthony MackieAmerican actor · born 1978
Ray CharlesAmerican singer, songwriter and pianist · born 1930
Mickey RooneyAmerican actor · born 1920
Jason AlexanderAmerican actor · born 1959
Kublai KhanEmperor of Yuan China from 1271 to 1294 · born 1215
Julio IglesiasSpanish singer-songwriter · born 1943September against the other eleven
September 23 is the 15th 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 23?
About 11,559 a year in the United States. It was at its most common in 1980, when 11,722 babies were born and it ranked #1 of 366; at its rarest in 2018, with 7,529 births at #309.
Is September 23 a common birthday?
In the United States, September 23 is the 21st most common of 366 dates, with about 11,559 births a year. That puts it among the more common birthdays.
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. 27 other dates are within 1% of September 23's count, spread from #13 to #40, 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 23 rarer in other countries?
In some. It is rarer in 10 of the 26 other countries we hold daily records for. It is at its rarest in Japan, at #348 of 366, and at its most common in England & Wales and Hungary, at #4.
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