Is August 18 a rare birthday? Popular
More common than 87% of all 366 dates.
August 18 in numbers
The odds, the star sign and the other dates that come with it.
Where August 18 ranks
From most common birthday to rarest, August 18 ranks in position #48, with 11,413 births a year. 318 other dates are rarer. 51 dates are within 1% of its count, anywhere from #28 to #79, so the exact position is a close thing.
August 18 through the years
Where it ranked in the United States, year by year.
common
August 18 in other countries
August 18 is the 48th most common birthday in the United States. It is among the 50 most common in 6 of the 26 other countries, and ranges from #1 in Denmark to #280 in Peru.
Denmark
#1 of 366
184 births on an average August 18
Statistics Denmark, 2007–2025Slovenia
#11 of 366
59 births on an average August 18
SURS, 2000–2025Netherlands
#29 of 366
528 births on an average August 18
CBS, 1995–2025Germany
#34 of 366
2,227 births on an average August 18
Destatis, 2014–2025Japan
#40 of 366
2,936 births on an average August 18
e-Stat, 1996–2025Hungary
#44 of 366
344 births on an average August 18
KSH, 1970–2020France
#66 of 366
2,216 births on an average August 18
INSEE, 1998–2024Mexico
#66 of 366
5,401 births on an average August 18
INEGI, 2017–2023Portugal
#68 of 366
305 births on an average August 18
INE Portugal, 1980–2025Malaysia
#73 of 366
1,440 births on an average August 18
DOSM, 2000–2022New Zealand
#74 of 366
161 births on an average August 18
Stats NZ, 1980–2023Belgium
#76 of 366
336 births on an average August 18
Statbel, 1992–2025Norway
#86 of 366
164 births on an average August 18
SSB, 2011–2025England & Wales
#96 of 366
1,815 births on an average August 18
ONS, 1995–2025Costa Rica
#101 of 366
174 births on an average August 18
INEC Costa Rica, 2014–2024Chile
#113 of 366
699 births on an average August 18
DEIS, 1990–2017Latvia
#120 of 366
55 births on an average August 18
CSB, 1996–2025Philippines
#120 of 366
4,629 births on an average August 18
PSA, 2006–2024Switzerland
#123 of 366
225 births on an average August 18
FSO, 1969–2025Ecuador
#126 of 366
777 births on an average August 18
INEC, 2013–2023Finland
#128 of 366
144 births on an average August 18
Statistics Finland, 2010–2025Brazil
#239 of 366
7,797 births on an average August 18
DATASUS, 1997–2024Ireland
#241 of 366
166 births on an average August 18
CSO, 1980–2023Guatemala
#249 of 366
929 births on an average August 18
INE Guatemala, 2018–2024Argentina
#264 of 366
1,430 births on an average August 18
DEIS, 2018–2023Peru
#280 of 366
1,150 births on an average August 18
INEI, 2019–2025
Famous people born on August 18
Ranked by how often people looked them up on Wikipedia last year.
Robert RedfordAmerican actor and director · born 1936
Nick FuentesAmerican far-right political activist · born 1998
Malcolm-Jamal WarnerAmerican actor · born 1970
Kaitlin OlsonAmerican actress and comedian · born 1975
Patrick SwayzeAmerican actor · born 1952
Edward NortonAmerican actor · born 1969
Andy SambergAmerican actor, comedian, and musician · born 1978
Christian SlaterAmerican actor · born 1969August against the other eleven
August 18 is the 15th most common of the 31 days in August. All August birthdays.
August is the 2nd most common month of the year
An average August day sees 11,405 births in the United States. September is the busiest month, January the quietest.
Quick answers
How many babies are born on August 18?
About 11,413 a year in the United States. It was at its most common in 2009, when 13,983 babies were born and it ranked #10 of 365; at its rarest in 2002, with 7,812 births at #320.
Is August 18 a common birthday?
In the United States, August 18 is the 48th most common of 366 dates, with about 11,413 births a year. That puts it among the more common birthdays.
What is the rarest August birthday?
In the United States, August 13: the 103rd most common of all 366 dates, with about 11,121 births a year. The most common August birthday is August 16, the 16th most common of the year.
How precise is the ranking?
In the middle of the calendar it is not exact. 51 other dates are within 1% of August 18's count, spread from #28 to #79, 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 August 18 rarer in other countries?
In some. It is rarer in 20 of the 26 other countries we hold daily records for. It is at its rarest in Peru, at #280 of 366, and at its most common in Denmark, at #1.
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