Is December 1 a rare birthday? Ordinary

More common than 62% of all 366 dates.

December 1 #139
Most commonSeptember 9RarestDecember 25
Cartoon birthday scene for December 1: a child behind a cake whose candles spell the date
At a glance

December 1 in numbers

The odds, the star sign and the other dates that come with it.

Born each year≈ 10,938in the United States — about 937,000 of them are alive today
In a full stadium138 peopleof 50,000 were born on December 1
On the day itselfEvery 8 secondsa baby is born on December 1 somewhere in the United States
Star signSagittariusmore common than 23 of the 30 Sagittarius birthdays
Half-birthdayJune 1six months later, to the day
Conceived aroundMarch 10Right around St Patrick's Day.
Birth frequency by rank

Where December 1 ranks

From most common birthday to rarest, December 1 ranks in position #139, with 10,938 births a year. 227 other dates are rarer. 57 dates are within 1% of its count, anywhere from #117 to #174, so the exact position is a close thing.

56 years of records

December 1 through the years

Where it ranked in the United States, year by year.

Fell on a weekdayOn a weekend
rarestmost
common
1969, Monday: rank #62 of 365, 10,648 births1970, Tuesday: rank #35 of 365, 11,328 births1971, Wednesday: rank #234 of 365, 9,634 births1972, Friday: rank #185 of 366, 9,060 births1973, Saturday: rank #315 of 365, 7,667 births1974, Sunday: rank #319 of 365, 7,569 births1975, Monday: rank #175 of 365, 8,834 births1976, Wednesday: rank #127 of 366, 9,045 births1977, Thursday: rank #219 of 365, 9,210 births1978, Friday: rank #105 of 365, 9,614 births1979, Saturday: rank #324 of 365, 8,343 births1980, Monday: rank #130 of 366, 10,225 births1981, Tuesday: rank #69 of 365, 10,880 births1982, Wednesday: rank #154 of 365, 10,432 births1983, Thursday: rank #181 of 365, 10,297 births1984, Saturday: rank #324 of 366, 8,479 births1985, Sunday: rank #338 of 365, 8,549 births1986, Monday: rank #192 of 365, 10,612 births1987, Tuesday: rank #26 of 365, 11,807 births1988, Thursday: rank #149 of 366, 11,227 births1989, Friday: rank #187 of 365, 11,455 births1990, Saturday: rank #316 of 365, 9,377 births1991, Sunday: rank #358 of 365, 8,658 births1992, Tuesday: rank #50 of 366, 12,421 births1993, Wednesday: rank #168 of 365, 11,700 births1994, Thursday: rank #153 of 365, 11,681 births1995, Friday: rank #206 of 365, 11,206 births1996, Sunday: rank #337 of 366, 7,929 births1997, Monday: rank #209 of 365, 11,195 births1998, Tuesday: rank #31 of 365, 12,612 births1999, Wednesday: rank #86 of 365, 12,282 births2000, Friday: rank #147 of 366, 12,219 births2001, Saturday: rank #312 of 365, 8,038 births2002, Sunday: rank #356 of 365, 7,286 births2003, Monday: rank #205 of 365, 11,973 births2004, Wednesday: rank #57 of 366, 13,075 births2005, Thursday: rank #107 of 365, 12,977 births2006, Friday: rank #121 of 365, 13,188 births2007, Saturday: rank #288 of 365, 8,654 births2008, Monday: rank #192 of 366, 12,816 births2009, Tuesday: rank #34 of 365, 13,635 births2010, Wednesday: rank #45 of 365, 12,894 births2011, Thursday: rank #84 of 365, 12,544 births2012, Saturday: rank #276 of 366, 8,177 births2013, Sunday: rank #327 of 365, 7,369 births2014, Monday: rank #75 of 365, 12,586 births2015, Tuesday: rank #12 of 365, 13,185 births2016, Thursday: rank #86 of 366, 12,270 births2017, Friday: rank #145 of 365, 11,668 births2018, Saturday: rank #275 of 365, 8,180 births2019, Sunday: rank #338 of 365, 6,884 births2020, Tuesday: rank #53 of 366, 11,476 births2021, Wednesday: rank #25 of 365, 12,041 births2022, Thursday: rank #21 of 365, 12,008 births2023, Friday: rank #89 of 365, 11,218 births2024, Sunday: rank #337 of 366, 6,909 births1970198019902000201020202024

On a weekend it slips to #321, from #116 on a working day

Inductions and planned caesareans are booked on working days, so 30.3% fewer babies arrive and the date falls down the ranking. Each bar is the average rank of the years it landed on that day.

#155
Mon
#39
Tue
#112
Wed
#125
Thu
#148
Fri
#304
Sat
#339
Sun
Most common year
2015#12 of 365Tuesday · 13,185 births
Rarest year
1991#358 of 365Sunday · 8,658 births
Weekend years
16 of 5629% of the record2024 was the most recent
Around the world

December 1 in other countries

December 1 is the 139th 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 #72 in Costa Rica to #357 in Portugal.

  1. Costa Rica

    #72 of 366

    176 births on an average December 1

    INEC Costa Rica, 2014–⁠2024
  2. Philippines

    #96 of 366

    4,759 births on an average December 1

    PSA, 2006–⁠2024
  3. Mexico

    #108 of 366

    5,200 births on an average December 1

    INEGI, 2017–⁠2023
  4. Malaysia

    #110 of 366

    1,416 births on an average December 1

    DOSM, 2000–⁠2022
  5. New Zealand

    #186 of 366

    157 births on an average December 1

    Stats NZ, 1980–⁠2023
  6. Latvia

    #218 of 366

    53 births on an average December 1

    CSB, 1996–⁠2025
  7. France

    #221 of 366

    2,126 births on an average December 1

    INSEE, 1998–⁠2024
  8. Germany

    #263 of 366

    1,955 births on an average December 1

    Destatis, 2014–⁠2025
  9. Ecuador

    #283 of 366

    736 births on an average December 1

    INEC, 2013–⁠2023
  10. Japan

    #283 of 366

    2,713 births on an average December 1

    e-Stat, 1996–⁠2025
  11. Slovenia

    #289 of 366

    50 births on an average December 1

    SURS, 2000–⁠2025
  12. Chile

    #303 of 366

    674 births on an average December 1

    DEIS, 1990–⁠2017
  13. Finland

    #303 of 366

    135 births on an average December 1

    Statistics Finland, 2010–⁠2025
  14. Switzerland

    #312 of 366

    210 births on an average December 1

    FSO, 1969–⁠2025
  15. Ireland

    #314 of 366

    163 births on an average December 1

    CSO, 1980–⁠2023
  16. Brazil

    #322 of 366

    7,453 births on an average December 1

    DATASUS, 1997–⁠2024
  17. Guatemala

    #324 of 366

    903 births on an average December 1

    INE Guatemala, 2018–⁠2024
  18. Argentina

    #327 of 366

    1,362 births on an average December 1

    DEIS, 2018–⁠2023
  19. Belgium

    #327 of 366

    312 births on an average December 1

    Statbel, 1992–⁠2025
  20. Hungary

    #331 of 366

    309 births on an average December 1

    KSH, 1970–⁠2020
  21. Denmark

    #333 of 366

    154 births on an average December 1

    Statistics Denmark, 2007–⁠2025
  22. Netherlands

    #335 of 366

    477 births on an average December 1

    CBS, 1995–⁠2025
  23. England & Wales

    #336 of 366

    1,737 births on an average December 1

    ONS, 1995–⁠2025
  24. Peru

    #339 of 366

    1,113 births on an average December 1

    INEI, 2019–⁠2025
  25. Norway

    #341 of 366

    132 births on an average December 1

    SSB, 2011–⁠2025
  26. Portugal

    #357 of 366

    274 births on an average December 1

    INE Portugal, 1980–⁠2025
Zoom out

December against the other eleven

December 1 is the 12th 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.

The whole year

Every date on one grid

In the United States, September is the busiest month of the year to be born in and January the quietest.

Each square is one date

December 1#139 of 36610,938 births a year

JanJFebFMarMAprAMayMJunJJulJAugASepSOctONovNDecD151015202530
RarestMost common

Compare with a friend

See how December 1 stacks up against someone else's birthday.

YouDecember 1
#139Rank
10,938Births a year
Friend
Questions

Quick answers

How many babies are born on December 1?

About 10,938 a year in the United States. It was at its most common in 2015, when 13,185 babies were born and it ranked #12 of 365; at its rarest in 1991, with 8,658 births at #358.

Is December 1 a common birthday?

In the United States, December 1 is the 139th most common of 366 dates, with about 10,938 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. 57 other dates are within 1% of December 1's count, spread from #117 to #174, 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 1 rarer in other countries?

In some. It is rarer in 22 of the 26 other countries we hold daily records for. It is at its rarest in Portugal, at #357 of 366, and at its most common in Costa Rica, at #72.

Our data

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.

Read the full methodology →

Updated October 2026