Is September 27 a rare birthday? Very common
More common than 95% of all 366 dates.
September 27 in numbers
The odds, the star sign and the other dates that come with it.
Where September 27 ranks
From most common birthday to rarest, September 27 ranks in position #19, with 11,579 births a year. 347 other dates are rarer. 23 dates are within 1% of its count, anywhere from #13 to #36, so the exact position is a close thing.
September 27 through the years
Where it ranked in the United States, year by year.
common
September 27 in other countries
September 27 is the 19th most common birthday in the United States. It is among the 50 most common in 16 of the 26 other countries, and ranges from #1 in Ireland and New Zealand to #253 in Ecuador.
Ireland
#1 of 366
186 births on an average September 27
CSO, 1980–2023New Zealand
#1 of 366
172 births on an average September 27
Stats NZ, 1980–2023England & Wales
#3 of 366
1,920 births on an average September 27
ONS, 1995–2025France
#9 of 366
2,270 births on an average September 27
INSEE, 1998–2024Japan
#14 of 366
3,029 births on an average September 27
e-Stat, 1996–2025Portugal
#14 of 366
320 births on an average September 27
INE Portugal, 1980–2025Guatemala
#15 of 366
1,045 births on an average September 27
INE Guatemala, 2018–2024Slovenia
#17 of 366
59 births on an average September 27
SURS, 2000–2025Mexico
#25 of 366
5,633 births on an average September 27
INEGI, 2017–2023Malaysia
#27 of 366
1,486 births on an average September 27
DOSM, 2000–2022Switzerland
#30 of 366
232 births on an average September 27
FSO, 1969–2025Denmark
#31 of 366
178 births on an average September 27
Statistics Denmark, 2007–2025Philippines
#31 of 366
5,095 births on an average September 27
PSA, 2006–2024Germany
#35 of 366
2,219 births on an average September 27
Destatis, 2014–2025Netherlands
#39 of 366
526 births on an average September 27
CBS, 1995–2025Costa Rica
#46 of 366
178 births on an average September 27
INEC Costa Rica, 2014–2024Chile
#52 of 366
715 births on an average September 27
DEIS, 1990–2017Hungary
#57 of 366
342 births on an average September 27
KSH, 1970–2020Finland
#90 of 366
147 births on an average September 27
Statistics Finland, 2010–2025Latvia
#90 of 366
56 births on an average September 27
CSB, 1996–2025Norway
#121 of 366
161 births on an average September 27
SSB, 2011–2025Peru
#134 of 366
1,218 births on an average September 27
INEI, 2019–2025Argentina
#201 of 366
1,492 births on an average September 27
DEIS, 2018–2023Belgium
#213 of 366
324 births on an average September 27
Statbel, 1992–2025Brazil
#244 of 366
7,784 births on an average September 27
DATASUS, 1997–2024Ecuador
#253 of 366
746 births on an average September 27
INEC, 2013–2023
Famous people born on September 27
Ranked by how often people looked them up on Wikipedia last year.
Jenna OrtegaAmerican actress · born 2002
Gwyneth PaltrowAmerican actress and businesswoman · born 1972
Avril LavigneCanadian singer · born 1984
Lil WayneAmerican rapper · born 1982
Anna CampAmerican actress · born 1982
Meat LoafAmerican singer and actor · born 1947
Marc MaronAmerican comedian, actor and media personality · born 1963
Steve KerrAmerican basketball player and coach · born 1965September against the other eleven
September 27 is the 14th most common 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 27?
About 11,579 a year in the United States. It was at its most common in 1983, when 11,366 babies were born and it ranked #2 of 365; at its rarest in 2020, with 6,790 births at #327.
Is September 27 a common birthday?
In the United States, September 27 is the 19th most common of 366 dates, with about 11,579 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. 23 other dates are within 1% of September 27's count, spread from #13 to #36, 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 27 rarer in other countries?
In some. It is rarer in 18 of the 26 other countries we hold daily records for. It is at its rarest in Ecuador, at #253 of 366, and at its most common in Ireland and New Zealand, at #1.
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