Is September 30 a rare birthday? Ordinary
More common than 70% of all 366 dates.
September 30 in numbers
The odds, the star sign and the other dates that come with it.
Where September 30 ranks
From most common birthday to rarest, September 30 ranks in position #110, with 11,093 births a year. 256 other dates are rarer. 28 dates are within 1% of its count, anywhere from #96 to #124, so the exact position is a close thing.
September 30 through the years
Where it ranked in the United States, year by year.
common
September 30 in other countries
September 30 is the 110th most common birthday in the United States. It is among the 50 most common in 12 of the 26 other countries, and ranges from #2 in New Zealand to #329 in Argentina.
New Zealand
#2 of 366
171 births on an average September 30
Stats NZ, 1980–2023England & Wales
#5 of 366
1,917 births on an average September 30
ONS, 1995–2025Netherlands
#5 of 366
541 births on an average September 30
CBS, 1995–2025Ireland
#12 of 366
182 births on an average September 30
CSO, 1980–2023Portugal
#15 of 366
320 births on an average September 30
INE Portugal, 1980–2025Switzerland
#17 of 366
233 births on an average September 30
FSO, 1969–2025France
#29 of 366
2,252 births on an average September 30
INSEE, 1998–2024Germany
#29 of 366
2,235 births on an average September 30
Destatis, 2014–2025Costa Rica
#37 of 366
180 births on an average September 30
INEC Costa Rica, 2014–2024Philippines
#41 of 366
5,015 births on an average September 30
PSA, 2006–2024Chile
#47 of 366
717 births on an average September 30
DEIS, 1990–2017Japan
#48 of 366
2,923 births on an average September 30
e-Stat, 1996–2025Malaysia
#54 of 366
1,460 births on an average September 30
DOSM, 2000–2022Denmark
#55 of 366
176 births on an average September 30
Statistics Denmark, 2007–2025Slovenia
#59 of 366
57 births on an average September 30
SURS, 2000–2025Finland
#67 of 366
148 births on an average September 30
Statistics Finland, 2010–2025Belgium
#68 of 366
337 births on an average September 30
Statbel, 1992–2025Guatemala
#68 of 366
982 births on an average September 30
INE Guatemala, 2018–2024Mexico
#87 of 366
5,284 births on an average September 30
INEGI, 2017–2023Latvia
#121 of 366
55 births on an average September 30
CSB, 1996–2025Hungary
#143 of 366
329 births on an average September 30
KSH, 1970–2020Norway
#190 of 366
156 births on an average September 30
SSB, 2011–2025Ecuador
#215 of 366
758 births on an average September 30
INEC, 2013–2023Peru
#222 of 366
1,186 births on an average September 30
INEI, 2019–2025Brazil
#273 of 366
7,668 births on an average September 30
DATASUS, 1997–2024Argentina
#329 of 366
1,356 births on an average September 30
DEIS, 2018–2023
Famous people born on September 30
Ranked by how often people looked them up on Wikipedia last year.
Kieran CulkinAmerican actor · born 1982
Max VerstappenDutch and Belgian racing driver · born 1997
Monica BellucciItalian actress and model · born 1964
Ezra MillerAmerican actor · born 1992
Fran DrescherAmerican actress and writer · born 1957
Lacey ChabertAmerican actress · born 1982
Jenna ElfmanAmerican actress · born 1971
Marion CotillardFrench actress · born 1975September against the other eleven
September 30 is the 6th 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 30?
About 11,093 a year in the United States. It was at its most common in 1969, when 11,138 babies were born and it ranked #9 of 365; at its rarest in 2018, with 7,309 births at #321.
Is September 30 a common birthday?
In the United States, September 30 is the 110th most common of 366 dates, with about 11,093 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. 28 other dates are within 1% of September 30's count, spread from #96 to #124, 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 30 rarer in other countries?
In some. It is rarer in 7 of the 26 other countries we hold daily records for. It is at its rarest in Argentina, at #329 of 366, and at its most common in New Zealand, at #2.
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