Is September 1 a rare birthday? Ordinary
More common than 66% of all 366 dates.
September 1 in numbers
The odds, the star sign and the other dates that come with it.
Where September 1 ranks
From most common birthday to rarest, September 1 ranks in position #125, with 10,980 births a year. 241 other dates are rarer. 46 dates are within 1% of its count, anywhere from #111 to #157, so the exact position is a close thing.
September 1 through the years
Where it ranked in the United States, year by year.
common
September 1 in other countries
September 1 is the 125th most common birthday in the United States. It is among the 50 most common in 1 of the 26 other countries, and ranges from #23 in Mexico to #347 in Belgium.
Mexico
#23 of 366
5,658 births on an average September 1
INEGI, 2017–2023Chile
#51 of 366
715 births on an average September 1
DEIS, 1990–2017Germany
#62 of 366
2,183 births on an average September 1
Destatis, 2014–2025Ecuador
#66 of 366
792 births on an average September 1
INEC, 2013–2023Portugal
#66 of 366
306 births on an average September 1
INE Portugal, 1980–2025Denmark
#76 of 366
174 births on an average September 1
Statistics Denmark, 2007–2025Philippines
#81 of 366
4,868 births on an average September 1
PSA, 2006–2024New Zealand
#83 of 366
160 births on an average September 1
Stats NZ, 1980–2023Costa Rica
#87 of 366
175 births on an average September 1
INEC Costa Rica, 2014–2024Finland
#93 of 366
146 births on an average September 1
Statistics Finland, 2010–2025Guatemala
#100 of 366
969 births on an average September 1
INE Guatemala, 2018–2024Netherlands
#101 of 366
515 births on an average September 1
CBS, 1995–2025Norway
#111 of 366
162 births on an average September 1
SSB, 2011–2025Switzerland
#122 of 366
226 births on an average September 1
FSO, 1969–2025Japan
#136 of 366
2,814 births on an average September 1
e-Stat, 1996–2025Slovenia
#137 of 366
54 births on an average September 1
SURS, 2000–2025Malaysia
#150 of 366
1,405 births on an average September 1
DOSM, 2000–2022Hungary
#153 of 366
329 births on an average September 1
KSH, 1970–2020England & Wales
#154 of 366
1,797 births on an average September 1
ONS, 1995–2025Brazil
#186 of 366
7,995 births on an average September 1
DATASUS, 1997–2024Ireland
#233 of 366
166 births on an average September 1
CSO, 1980–2023Peru
#244 of 366
1,172 births on an average September 1
INEI, 2019–2025Argentina
#290 of 366
1,405 births on an average September 1
DEIS, 2018–2023France
#302 of 366
2,087 births on an average September 1
INSEE, 1998–2024Latvia
#319 of 366
50 births on an average September 1
CSB, 1996–2025Belgium
#347 of 366
304 births on an average September 1
Statbel, 1992–2025
Famous people born on September 1
Ranked by how often people looked them up on Wikipedia last year.
ZendayaAmerican actress and singer · born 1996
Eric AdamsMayor of New York City from 2022 to 2025 · born 1960
Al GreenAmerican politician · born 1947
Barry GibbBritish musician · born 1946
Carlos Sainz Jr.Spanish racing driver · born 1994
Alan DershowitzAmerican lawyer and author · born 1938
Gloria EstefanCuban-American singer and songwriter · born 1957
Boyd HolbrookAmerican actor · born 1981September against the other eleven
September 1 is the 4th 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 1?
About 10,980 a year in the United States. It was at its most common in 2011, when 13,515 babies were born and it ranked #5 of 365; at its rarest in 1996, with 8,250 births at #321.
Is September 1 a common birthday?
In the United States, September 1 is the 125th most common of 366 dates, with about 10,980 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. 46 other dates are within 1% of September 1's count, spread from #111 to #157, 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 1 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 Belgium, at #347 of 366, and at its most common in Mexico, at #23.
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