Is January 23 a rare birthday? Uncommon

Rarer than 75% of all 366 dates.

January 23 #275
Most commonSeptember 9RarestDecember 25
Cartoon birthday scene for January 23: a child behind a cake whose candles spell the date
At a glance

January 23 in numbers

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

Born each year≈ 10,601in the United States — about 908,000 of them are alive today
In a full stadium133 peopleof 50,000 were born on January 23
On the day itselfEvery 8 secondsa baby is born on January 23 somewhere in the United States
Star signAquariusmore common than 16 of the 30 Aquarius birthdays
Half-birthdayJuly 23six months later, to the day
Conceived aroundMay 2A spring evening, apparently.
Birth frequency by rank

Where January 23 ranks

From most common birthday to rarest, January 23 ranks in position #275, with 10,601 births a year. 274 other dates are more common. 87 dates are within 1% of its count, anywhere from #226 to #313, so the exact position is a close thing.

56 years of records

January 23 through the years

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

Fell on a weekdayOn a weekend
rarestmost
common
1969, Thursday: rank #262 of 365, 9,454 births1970, Friday: rank #193 of 365, 10,202 births1971, Saturday: rank #199 of 365, 9,802 births1972, Sunday: rank #291 of 366, 8,148 births1973, Tuesday: rank #66 of 365, 9,272 births1974, Wednesday: rank #247 of 365, 8,457 births1975, Thursday: rank #201 of 365, 8,747 births1976, Friday: rank #173 of 366, 8,771 births1977, Sunday: rank #351 of 365, 7,620 births1978, Monday: rank #176 of 365, 9,263 births1979, Tuesday: rank #153 of 365, 9,794 births1980, Wednesday: rank #254 of 366, 9,593 births1981, Friday: rank #193 of 365, 10,123 births1982, Saturday: rank #318 of 365, 8,706 births1983, Sunday: rank #315 of 365, 8,600 births1984, Monday: rank #237 of 366, 9,925 births1985, Wednesday: rank #215 of 365, 10,496 births1986, Thursday: rank #238 of 365, 10,388 births1987, Friday: rank #230 of 365, 10,581 births1988, Saturday: rank #329 of 366, 8,728 births1989, Monday: rank #230 of 365, 11,141 births1990, Tuesday: rank #153 of 365, 12,091 births1991, Wednesday: rank #209 of 365, 11,615 births1992, Thursday: rank #185 of 366, 11,729 births1993, Saturday: rank #302 of 365, 8,885 births1994, Sunday: rank #327 of 365, 8,310 births1995, Monday: rank #237 of 365, 10,640 births1996, Tuesday: rank #164 of 366, 11,451 births1997, Thursday: rank #166 of 365, 11,511 births1998, Friday: rank #204 of 365, 11,389 births1999, Saturday: rank #284 of 365, 8,587 births2000, Sunday: rank #353 of 366, 7,712 births2001, Tuesday: rank #158 of 365, 12,176 births2002, Wednesday: rank #190 of 365, 11,970 births2003, Thursday: rank #211 of 365, 11,892 births2004, Friday: rank #170 of 366, 12,451 births2005, Sunday: rank #348 of 365, 7,265 births2006, Monday: rank #239 of 365, 11,913 births2007, Tuesday: rank #165 of 365, 13,201 births2008, Wednesday: rank #109 of 366, 13,236 births2009, Friday: rank #142 of 365, 12,774 births2010, Saturday: rank #291 of 365, 7,890 births2011, Sunday: rank #343 of 365, 6,928 births2012, Monday: rank #233 of 366, 11,334 births2013, Wednesday: rank #187 of 365, 11,737 births2014, Thursday: rank #177 of 365, 11,936 births2015, Friday: rank #179 of 365, 11,910 births2016, Saturday: rank #312 of 366, 7,810 births2017, Monday: rank #233 of 365, 11,048 births2018, Tuesday: rank #126 of 365, 11,587 births2019, Wednesday: rank #161 of 365, 11,278 births2020, Thursday: rank #135 of 366, 11,023 births2021, Saturday: rank #317 of 365, 7,247 births2022, Sunday: rank #352 of 365, 6,607 births2023, Monday: rank #196 of 365, 10,612 births2024, Tuesday: rank #181 of 366, 10,740 births1970198019902000201020202024

On a weekend it slips to #315, from #189 on a working day

Inductions and planned caesareans are booked on working days, so 26.7% fewer babies arrive and the date falls down the ranking. Each bar is the average rank of the years it landed on that day.

#223
Mon
#146
Tue
#197
Wed
#197
Thu
#186
Fri
#294
Sat
#335
Sun
Most common year
1973#66 of 365Tuesday · 9,272 births
Rarest year
2000#353 of 366Sunday · 7,712 births
Weekend years
16 of 5629% of the record2022 was the most recent
Around the world

January 23 in other countries

January 23 is the 92nd rarest birthday in the United States. It is among the 50 rarest in 3 of the 26 other countries, and ranges from #49 in Japan to #352 in Malaysia.

  1. Japan

    #49 of 366

    2,923 births on an average January 23

    e-Stat, 1996–⁠2025
  2. Chile

    #72 of 366

    708 births on an average January 23

    DEIS, 1990–⁠2017
  3. Guatemala

    #88 of 366

    973 births on an average January 23

    INE Guatemala, 2018–⁠2024
  4. Peru

    #98 of 366

    1,233 births on an average January 23

    INEI, 2019–⁠2025
  5. Argentina

    #111 of 366

    1,587 births on an average January 23

    DEIS, 2018–⁠2023
  6. Philippines

    #155 of 366

    4,510 births on an average January 23

    PSA, 2006–⁠2024
  7. Slovenia

    #155 of 366

    54 births on an average January 23

    SURS, 2000–⁠2025
  8. Switzerland

    #162 of 366

    224 births on an average January 23

    FSO, 1969–⁠2025
  9. Netherlands

    #165 of 366

    497 births on an average January 23

    CBS, 1995–⁠2025
  10. Finland

    #178 of 366

    141 births on an average January 23

    Statistics Finland, 2010–⁠2025
  11. Belgium

    #186 of 366

    326 births on an average January 23

    Statbel, 1992–⁠2025
  12. New Zealand

    #196 of 366

    157 births on an average January 23

    Stats NZ, 1980–⁠2023
  13. Brazil

    #200 of 366

    7,938 births on an average January 23

    DATASUS, 1997–⁠2024
  14. Germany

    #213 of 366

    1,990 births on an average January 23

    Destatis, 2014–⁠2025
  15. England & Wales

    #214 of 366

    1,772 births on an average January 23

    ONS, 1995–⁠2025
  16. Hungary

    #217 of 366

    325 births on an average January 23

    KSH, 1970–⁠2020
  17. Mexico

    #220 of 366

    4,933 births on an average January 23

    INEGI, 2017–⁠2023
  18. Norway

    #236 of 366

    152 births on an average January 23

    SSB, 2011–⁠2025
  19. France

    #238 of 366

    2,120 births on an average January 23

    INSEE, 1998–⁠2024
  20. Costa Rica

    #239 of 366

    164 births on an average January 23

    INEC Costa Rica, 2014–⁠2024
  21. Portugal

    #264 of 366

    290 births on an average January 23

    INE Portugal, 1980–⁠2025
  22. Latvia

    #269 of 366

    51 births on an average January 23

    CSB, 1996–⁠2025
  23. Denmark

    #282 of 366

    159 births on an average January 23

    Statistics Denmark, 2007–⁠2025
  24. Ecuador

    #319 of 366

    718 births on an average January 23

    INEC, 2013–⁠2023
  25. Ireland

    #336 of 366

    161 births on an average January 23

    CSO, 1980–⁠2023
  26. Malaysia

    #352 of 366

    1,310 births on an average January 23

    DOSM, 2000–⁠2022
Zoom out

January against the other eleven

January 23 is the 11th most common of the 31 days in January. All January birthdays.

January is the rarest month of the year

An average January day sees 10,394 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

January 23#275 of 36610,601 births a year

JanJFebFMarMAprAMayMJunJJulJAugASepSOctONovNDecD151015202530
RarestMost common

Compare with a friend

See how January 23 stacks up against someone else's birthday.

YouJanuary 23
#275Rank
10,601Births a year
Friend
Questions

Quick answers

How many babies are born on January 23?

About 10,601 a year in the United States. It was at its most common in 1973, when 9,272 babies were born and it ranked #66 of 365; at its rarest in 2000, with 7,712 births at #353.

Is January 23 a common birthday?

In the United States, January 23 is the 92nd rarest of 366 dates, with about 10,601 births a year. That puts it on the rarer side of the calendar.

What is the rarest January birthday?

In the United States, January 1: the 2nd rarest of all 366 dates, with about 7,731 births a year. The most common January birthday is January 4, the 179th most common of the year.

How precise is the ranking?

In the middle of the calendar it is not exact. 87 other dates are within 1% of January 23's count, spread from #226 to #313, 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 January 23 rarer in other countries?

In some. It is rarer in 4 of the 26 other countries we hold daily records for. It is at its rarest in Malaysia, at #352 of 366, and at its most common in Japan, at #49.

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