Is December 20 a rare birthday? Very common
More common than 96% of all 366 dates.
December 20 in numbers
The odds, the star sign and the other dates that come with it.
Where December 20 ranks
From most common birthday to rarest, December 20 ranks in position #15, with 11,622 births a year. 351 other dates are rarer. 23 dates are within 1% of its count, anywhere from #9 to #32, so the exact position is a close thing.
December 20 through the years
Where it ranked in the United States, year by year.
common
December 20 in other countries
December 20 is the 15th most common birthday in the United States. It is among the 50 most common in 7 of the 26 other countries, and ranges from #17 in Chile to #339 in Norway.
Chile
#17 of 366
753 births on an average December 20
DEIS, 1990–2017Ireland
#18 of 366
179 births on an average December 20
CSO, 1980–2023Costa Rica
#19 of 366
183 births on an average December 20
INEC Costa Rica, 2014–2024Argentina
#26 of 366
1,729 births on an average December 20
DEIS, 2018–2023Mexico
#34 of 366
5,584 births on an average December 20
INEGI, 2017–2023Portugal
#34 of 366
310 births on an average December 20
INE Portugal, 1980–2025Belgium
#38 of 366
341 births on an average December 20
Statbel, 1992–2025New Zealand
#54 of 366
162 births on an average December 20
Stats NZ, 1980–2023England & Wales
#77 of 366
1,826 births on an average December 20
ONS, 1995–2025Guatemala
#78 of 366
980 births on an average December 20
INE Guatemala, 2018–2024France
#99 of 366
2,198 births on an average December 20
INSEE, 1998–2024Philippines
#107 of 366
4,700 births on an average December 20
PSA, 2006–2024Japan
#111 of 366
2,836 births on an average December 20
e-Stat, 1996–2025Brazil
#165 of 366
8,053 births on an average December 20
DATASUS, 1997–2024Hungary
#181 of 366
327 births on an average December 20
KSH, 1970–2020Slovenia
#190 of 366
53 births on an average December 20
SURS, 2000–2025Germany
#194 of 366
2,005 births on an average December 20
Destatis, 2014–2025Latvia
#224 of 366
53 births on an average December 20
CSB, 1996–2025Ecuador
#230 of 366
754 births on an average December 20
INEC, 2013–2023Finland
#247 of 366
138 births on an average December 20
Statistics Finland, 2010–2025Peru
#269 of 366
1,159 births on an average December 20
INEI, 2019–2025Switzerland
#269 of 366
217 births on an average December 20
FSO, 1969–2025Netherlands
#282 of 366
487 births on an average December 20
CBS, 1995–2025Malaysia
#303 of 366
1,358 births on an average December 20
DOSM, 2000–2022Denmark
#330 of 366
154 births on an average December 20
Statistics Denmark, 2007–2025Norway
#339 of 366
132 births on an average December 20
SSB, 2011–2025
Famous people born on December 20
Ranked by how often people looked them up on Wikipedia last year.
Kylian MbappéFrench footballer · born 1998
Jonah HillAmerican actor · born 1983
Prince George, Duke of KentBritish prince · born 1902
JoJoAmerican singer and songwriter · born 1990
Peter CrissAmerican drummer and singer · born 1945
Ashley ColeEnglish footballer · born 1980
Jarrod BowenEnglish footballer · born 1996
Jenny AgutterEnglish actress · born 1952December against the other eleven
December 20 is the 2nd most common 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 20?
About 11,622 a year in the United States. It was at its most common in 1994, when 12,880 babies were born and it ranked #4 of 365; at its rarest in 1992, with 8,400 births at #362.
Is December 20 a common birthday?
In the United States, December 20 is the 15th most common of 366 dates, with about 11,622 births a year. That puts it among the more common birthdays.
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. 23 other dates are within 1% of December 20's count, spread from #9 to #32, 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 20 rarer in other countries?
Yes, in all 26 other countries we hold daily records for. It is at its rarest in Norway, at #339 of 366, and at its most common in Chile, at #17.
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