The 12 rarest birthdays in the United States are:
- December 25th: With an average of 6,574 yearly births, Christmas Day is the rarest birthday.
- January 1st: New Year's Day falls second, with an average of 7,792 births annually.
- December 24th: Averaging 8,069 yearly births, Christmas Eve is the third least common birthday.
- July 4th: With an average of 8,796 yearly births, Independence Day holds the fourth spot.
- November 27th: This date sees an average of 9,718 births per year.
- November 23rd: Averaging 9,883 yearly births, this day is considered one of the rarest.
- November 25th: This date sees an average of 9,954 births per year.
- October 31st: With an average of 9,978 yearly births, Halloween holds the eighth spot for the rarest birthday.
- December 15th: This day sees an average of 11,191 yearly births.
- December 16th: Averaging 11,352 births per year, this date is considered one of the rarest.
- December 17th: This date sees an average of 11,481 yearly births.
- December 18th: Averaging 11,572 yearly births, this day rounds out the top 12 rarest birthdays.
While February 29th might seem like the rarest birthday due to it only occurring every four years, it actually holds a higher average number of births than many of these listed dates.
