Is October 18 a rare birthday? Ordinary
More common than 61% of all 366 dates.
October 18 in numbers
The odds, the star sign and the other dates that come with it.
Where October 18 ranks
From most common birthday to rarest, October 18 ranks in position #142, with 10,923 births a year. 224 other dates are rarer. 62 dates are within 1% of its count, anywhere from #117 to #179, so the exact position is a close thing.
October 18 through the years
Where it ranked in the United States, year by year.
common
October 18 in other countries
October 18 is the 142nd most common birthday in the United States. It is among the 50 most common in 4 of the 26 other countries, and ranges from #16 in Malaysia to #327 in Brazil.
Malaysia
#16 of 366
1,501 births on an average October 18
DOSM, 2000–2022Guatemala
#27 of 366
1,023 births on an average October 18
INE Guatemala, 2018–2024Costa Rica
#28 of 366
181 births on an average October 18
INEC Costa Rica, 2014–2024Philippines
#32 of 366
5,092 births on an average October 18
PSA, 2006–2024Mexico
#64 of 366
5,416 births on an average October 18
INEGI, 2017–2023New Zealand
#81 of 366
160 births on an average October 18
Stats NZ, 1980–2023England & Wales
#108 of 366
1,811 births on an average October 18
ONS, 1995–2025Denmark
#125 of 366
169 births on an average October 18
Statistics Denmark, 2007–2025Chile
#134 of 366
694 births on an average October 18
DEIS, 1990–2017Finland
#149 of 366
143 births on an average October 18
Statistics Finland, 2010–2025France
#150 of 366
2,165 births on an average October 18
INSEE, 1998–2024Netherlands
#170 of 366
497 births on an average October 18
CBS, 1995–2025Portugal
#170 of 366
298 births on an average October 18
INE Portugal, 1980–2025Argentina
#188 of 366
1,506 births on an average October 18
DEIS, 2018–2023Japan
#198 of 366
2,771 births on an average October 18
e-Stat, 1996–2025Germany
#205 of 366
1,996 births on an average October 18
Destatis, 2014–2025Norway
#220 of 366
153 births on an average October 18
SSB, 2011–2025Slovenia
#261 of 366
51 births on an average October 18
SURS, 2000–2025Ecuador
#263 of 366
742 births on an average October 18
INEC, 2013–2023Peru
#263 of 366
1,161 births on an average October 18
INEI, 2019–2025Belgium
#276 of 366
319 births on an average October 18
Statbel, 1992–2025Hungary
#290 of 366
317 births on an average October 18
KSH, 1970–2020Latvia
#290 of 366
51 births on an average October 18
CSB, 1996–2025Switzerland
#295 of 366
213 births on an average October 18
FSO, 1969–2025Ireland
#299 of 366
163 births on an average October 18
CSO, 1980–2023Brazil
#327 of 366
7,432 births on an average October 18
DATASUS, 1997–2024
Famous people born on October 18
Ranked by how often people looked them up on Wikipedia last year.
Zohran MamdaniMayor of New York City since 2026 · born 1991
Zac EfronAmerican actor · born 1987
Sophie ThatcherAmerican actress · born 2000
Barry KeoghanIrish actor · born 1992
Jean-Claude Van DammeBelgian actor and martial artist · born 1960
Brittney GrinerAmerican basketball player · born 1990
Pierre TrudeauPrime Minister of Canada (1968–1979; 1980–1984) · born 1919
Milo YiannopoulosBritish political commentator · born 1984October against the other eleven
October 18 is the 12th most common of the 31 days in October. All October birthdays.
October is the 5th most common month of the year
An average October day sees 10,872 births in the United States. September is the busiest month, January the quietest.
Quick answers
How many babies are born on October 18?
About 10,923 a year in the United States. It was at its most common in 1988, when 11,893 babies were born and it ranked #63 of 366; at its rarest in 1987, with 8,270 births at #358.
Is October 18 a common birthday?
In the United States, October 18 is the 142nd most common of 366 dates, with about 10,923 births a year. That makes it an ordinary birthday: neither rare nor especially common.
What is the rarest October birthday?
In the United States, October 31: the 11th rarest of all 366 dates, with about 9,798 births a year. The most common October birthday is October 1, the 71st most common of the year.
How precise is the ranking?
In the middle of the calendar it is not exact. 62 other dates are within 1% of October 18's count, spread from #117 to #179, 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 October 18 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 Brazil, at #327 of 366, and at its most common in Malaysia, at #16.
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