Is December 9 a rare birthday? Uncommon
Rarer than 87% of all 366 dates.
December 9 in numbers
The odds, the star sign and the other dates that come with it.
Where December 9 ranks
From most common birthday to rarest, December 9 ranks in position #318, with 10,483 births a year. 317 other dates are more common. 63 dates are within 1% of its count, anywhere from #277 to #340, so the exact position is a close thing.
December 9 through the years
Where it ranked in the United States, year by year.
common
December 9 in other countries
December 9 is the 49th rarest birthday in the United States. It is among the 50 rarest in 14 of the 26 other countries, and ranges from #124 in the Philippines to #358 in Peru.
Philippines
#124 of 366
4,620 births on an average December 9
PSA, 2006–2024Chile
#177 of 366
689 births on an average December 9
DEIS, 1990–2017Costa Rica
#198 of 366
166 births on an average December 9
INEC Costa Rica, 2014–2024Malaysia
#208 of 366
1,389 births on an average December 9
DOSM, 2000–2022France
#222 of 366
2,126 births on an average December 9
INSEE, 1998–2024New Zealand
#232 of 366
156 births on an average December 9
Stats NZ, 1980–2023Mexico
#242 of 366
4,892 births on an average December 9
INEGI, 2017–2023Ireland
#251 of 366
165 births on an average December 9
CSO, 1980–2023Belgium
#304 of 366
317 births on an average December 9
Statbel, 1992–2025Guatemala
#307 of 366
909 births on an average December 9
INE Guatemala, 2018–2024Japan
#316 of 366
2,680 births on an average December 9
e-Stat, 1996–2025Switzerland
#316 of 366
210 births on an average December 9
FSO, 1969–2025Finland
#322 of 366
134 births on an average December 9
Statistics Finland, 2010–2025Portugal
#330 of 366
283 births on an average December 9
INE Portugal, 1980–2025Denmark
#335 of 366
154 births on an average December 9
Statistics Denmark, 2007–2025Latvia
#335 of 366
49 births on an average December 9
CSB, 1996–2025Germany
#336 of 366
1,895 births on an average December 9
Destatis, 2014–2025Netherlands
#338 of 366
475 births on an average December 9
CBS, 1995–2025Hungary
#342 of 366
307 births on an average December 9
KSH, 1970–2020England & Wales
#345 of 366
1,730 births on an average December 9
ONS, 1995–2025Slovenia
#348 of 366
48 births on an average December 9
SURS, 2000–2025Argentina
#349 of 366
1,278 births on an average December 9
DEIS, 2018–2023Brazil
#350 of 366
7,290 births on an average December 9
DATASUS, 1997–2024Ecuador
#350 of 366
700 births on an average December 9
INEC, 2013–2023Norway
#351 of 366
128 births on an average December 9
SSB, 2011–2025Peru
#358 of 366
1,061 births on an average December 9
INEI, 2019–2025
Famous people born on December 9
Ranked by how often people looked them up on Wikipedia last year.
Kirk DouglasAmerican actor · born 1916
John MalkovichAmerican actor · born 1953
Judi DenchEnglish actress · born 1934
Jakob DylanAmerican singer-songwriter · born 1969
Felicity HuffmanAmerican actress · born 1962
Kurt AngleAmerican wrestler · born 1968
Sonia GandhiIndian politician · born 1946
Simon HelbergAmerican actor and comedian · born 1980December against the other eleven
December 9 is the 6th 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 9?
About 10,483 a year in the United States. It was at its most common in 1969, when 10,730 babies were born and it ranked #43 of 365; at its rarest in 1990, with 8,616 births at #362.
Is December 9 a common birthday?
In the United States, December 9 is the 49th rarest of 366 dates, with about 10,483 births a year. That puts it on the rarer side of the calendar.
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. 63 other dates are within 1% of December 9's count, spread from #277 to #340, 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 9 rarer in other countries?
In some. It is rarer in 14 of the 26 other countries we hold daily records for. It is at its rarest in Peru, at #358 of 366, and at its most common in the Philippines, at #124.
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