Is December 15 a rare birthday? Ordinary
Rarer than 50% of all 366 dates.
December 15 in numbers
The odds, the star sign and the other dates that come with it.
Where December 15 ranks
From most common birthday to rarest, December 15 ranks in position #183, with 10,798 births a year. 183 other dates are rarer. 85 dates are within 1% of its count, anywhere from #148 to #233, so the exact position is a close thing.
December 15 through the years
Where it ranked in the United States, year by year.
common
December 15 in other countries
December 15 is the 183rd most common birthday in the United States. It is not among the 50 most common in any of the 26 other countries, and ranges from #62 in New Zealand to #357 in Finland.
New Zealand
#62 of 366
161 births on an average December 15
Stats NZ, 1980–2023France
#83 of 366
2,204 births on an average December 15
INSEE, 1998–2024Ireland
#89 of 366
172 births on an average December 15
CSO, 1980–2023Costa Rica
#118 of 366
172 births on an average December 15
INEC Costa Rica, 2014–2024Mexico
#118 of 366
5,176 births on an average December 15
INEGI, 2017–2023Philippines
#119 of 366
4,633 births on an average December 15
PSA, 2006–2024Portugal
#122 of 366
301 births on an average December 15
INE Portugal, 1980–2025Chile
#130 of 366
695 births on an average December 15
DEIS, 1990–2017Belgium
#164 of 366
328 births on an average December 15
Statbel, 1992–2025Malaysia
#213 of 366
1,387 births on an average December 15
DOSM, 2000–2022Germany
#219 of 366
1,986 births on an average December 15
Destatis, 2014–2025Switzerland
#227 of 366
221 births on an average December 15
FSO, 1969–2025Hungary
#230 of 366
324 births on an average December 15
KSH, 1970–2020Slovenia
#236 of 366
52 births on an average December 15
SURS, 2000–2025Japan
#271 of 366
2,721 births on an average December 15
e-Stat, 1996–2025Latvia
#275 of 366
51 births on an average December 15
CSB, 1996–2025England & Wales
#278 of 366
1,755 births on an average December 15
ONS, 1995–2025Brazil
#286 of 366
7,605 births on an average December 15
DATASUS, 1997–2024Ecuador
#296 of 366
730 births on an average December 15
INEC, 2013–2023Guatemala
#301 of 366
912 births on an average December 15
INE Guatemala, 2018–2024Argentina
#310 of 366
1,386 births on an average December 15
DEIS, 2018–2023Netherlands
#331 of 366
478 births on an average December 15
CBS, 1995–2025Peru
#331 of 366
1,121 births on an average December 15
INEI, 2019–2025Denmark
#340 of 366
153 births on an average December 15
Statistics Denmark, 2007–2025Norway
#342 of 366
130 births on an average December 15
SSB, 2011–2025Finland
#357 of 366
125 births on an average December 15
Statistics Finland, 2010–2025
Famous people born on December 15
Ranked by how often people looked them up on Wikipedia last year.
Adam BrodyAmerican actor · born 1979
Lee Jung-jaeSouth Korean actor · born 1972
Don JohnsonAmerican actor · born 1949
Michelle DockeryBritish actress · born 1981
Ralph InesonEnglish actor and narrator · born 1969
Charlie CoxBritish actor · born 1982
Ronnie RadkeAmerican musician · born 1983
Alana HaimAmerican musician and actress · born 1991December against the other eleven
December 15 is the 16th rarest of the 31 days in December. All December birthdays.
December is the 4th rarest month of the year
An average December day sees 10,633 births in the United States. September is the busiest month, January the quietest.
Quick answers
How many babies are born on December 15?
About 10,798 a year in the United States. It was at its most common in 1970, when 11,884 babies were born and it ranked #6 of 365; at its rarest in 1985, with 8,253 births at #360.
Is December 15 a common birthday?
In the United States, December 15 is the 183rd most common of 366 dates, with about 10,798 births a year. That makes it an ordinary birthday: neither rare nor especially common.
What is the rarest December birthday?
In the United States, December 25: the rarest of all 366 dates, with about 6,546 births a year. The most common December birthday is December 28, the 6th most common of the year.
How precise is the ranking?
In the middle of the calendar it is not exact. 85 other dates are within 1% of December 15's count, spread from #148 to #233, 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 December 15 rarer in other countries?
In some. It is rarer in 17 of the 26 other countries we hold daily records for. It is at its rarest in Finland, at #357 of 366, and at its most common in New Zealand, at #62.
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