Which is the most common birthday in the United States?
Asked by: Margret Sipes | Last update: March 24, 2026Score: 4.1/5 (52 votes)
The most common birthday in the United States is September 9th, with several other dates in early to mid-September also ranking in the top 10, a trend linked to conceptions occurring during the winter holiday season (around December) when people often have more time off and are socializing.
What are the top 3 most common birthdays?
The top 3 most common birthdays in the U.S. are September 9th, September 19th, and September 12th, with most common dates clustering in early-to-mid September, likely due to conceptions around winter holidays.
What is the rarest birthday in the US?
What is the least common birthday? Unsurprisingly, February 29 th is the least common birthday. Because Leap Day only rolls around every four years, there's only a 1/1,461 chance of being born on this day (versus 1/365 for any other given day).
Are summer or winter birthdays rarer?
Not all birthdays are created equal… in fact, for most countries in the north temperate zone, more people are born in summer (May – August) than in winter (October – January).
What is the least born on day?
The rarest day to be born is February 29 (Leap Day), occurring only every four years, followed by major holidays like Christmas Day (Dec 25) and New Year's Day (Jan 1), due to fewer scheduled births on holidays and weekends, making them less common than regular days. Other uncommon birthdays include December 26, January 2, and July 4.
👉👀Comparison: Most Common Birthday How rare is your Birthday
What's the rarest time to be born?
Because it has far fewer days than any other month, February is the least common birth month. In 2023, only 271,000 babies were born, according to the CDC.
What is a diamond birthday?
A diamond birthday is a special milestone when your age matches the last two digits of your birth year (e.g., turning 75 if born in 1975) or sometimes your birth date, symbolizing life's preciousness, with celebrations often themed around diamonds and reflecting on one's journey, similar to a "Golden Birthday". It's a fun, personalized way to mark significant years beyond traditional milestones like 50 or 60, emphasizing rarity and personal legacy.
Which date was No One born?
February 3rd is the only day where no one in history has ever been born. Despite much scientific study, there is no explanation for this phenomena. Historically it has been referred to as “the empty day” or “nobody's birthday”.
What is the most loved month of the year?
What Americans think of the months of the year. YouGov polling from February 2021 that also asked about favorite months — using different questions — showed similar results. January was Americans' most disliked month, while October, December, and May were people's favorite months.
What is a lucky birthday month?
Astrology suggests birth months influence luck, drawing opportunities and positive events. Individuals born in March, May, June, August, October, and December are highlighted for inherent optimism, cosmic backing, or karmic benefits.
Which birth date is not lucky?
The 4th, 7th, 8th, 22nd, and 17th are believed to be ill-fated by some. Additionally, the superstition around Friday the 13th can add to the sense of caution for those born in October.
What is the 99% birthday problem?
To reach a 99% probability for the Birthday Paradox (at least two people sharing a birthday), you need a group of approximately 57 people, though some sources say 57 gives over 99%, while others show around 60 people reaching 99.4%, highlighting how quickly the odds rise past the surprising 50% mark (which happens with just 23 people).
What month are most people born in?
The most common birthday month is August, closely followed by July, with September and October also having very high birth rates, creating a late summer/early fall peak, which aligns with conceptions around the winter holidays when people spend more time indoors. While September has many of the most popular specific birth dates, August generally sees the highest total number of births.
What birth date is the least common?
The #1 rarest birthday date is February 29. You have only a 1 in roughly 1,460 chance of being born on this date.
Why are most people born in September?
Many people are born in September because it's about nine months after the winter holidays (December/January), a time when people spend more time indoors, leading to increased conceptions. Other factors include cultural preferences for children to be older in their school year, seasonal fertility patterns, and potentially less hospital interference during non-holiday periods, creating a "September baby boom".
Do twins share a birthday often?
Usually, they are delivered only a few minutes or hours apart. But they can have different birthdays. This most commonly happens when labor and delivery begins before midnight on one day and ends after the clock changes to the next day.
What is the unhappiest month of the year?
January is widely considered the unhappiest or most depressing month, often called the "Monday of months," due to post-holiday financial strain, broken New Year's resolutions, prolonged darkness, cold weather, and the peak of Seasonal Affective Disorder (SAD). While some sources point to May or June for higher suicide rates, January consistently ranks as the lowest emotionally for many in the Northern Hemisphere due to these combined winter factors.
What is the most forgotten month?
Still, despite all these qualities, November's image as the “forgotten month” persists. It is squeezed between two cultural giants. People often treat November as a month of waiting: waiting for the holidays, waiting for the year to end, waiting for winter to fully arrive.
What month are people the happiest?
The month of the year in which most people are happiest is May, because of the brighter blue skies, warmer temperatures, longer days and the blossom and renewal of spring according to a recent revealing survey.
What cultures don't celebrate birthdays?
Islam. The birthday does not reflect Islamic tradition, and because of this, the majority of Muslims refrain from celebrating it. Others do not object, as long as it is not accompanied by behavior contrary to Islamic tradition.
What day did no one give birth?
The day is referred to as "empty day" or "nobody's birthday" because it is believed that no one has ever been born on that day. #MoneyMakerSA #LokuhleFM. i think this was specified to the year. feb 3rd 2012 was empty day :) !
What happens if you are born on February 29 legally?
In non-leap years, that day is March 1. So for someone born on February 29, the first day they can legally drive, vote, join the Army, buy alcohol or start collecting Social Security is presumably March 1 in non-leap years.
What birthday is gold?
What is a golden birthday? Your golden birthday is the year you turn the same age as your birthday. For example, turning 25 on the 25th, or 31 on the 31st. If you've ever wondered where the tradition comes from, you're not alone.
What zodiac signs wear diamonds?
Diamond is the gemstone for those who are born under Virgo and Libra as it bestows good luck and prosperity. Other zodiac signs can wear the diamond at certain times and under certain conditions. For example, Capricorn men and women as well as Aquarians can wear the diamond along with a Blue Sapphire.
Which age is platinum?
golden jubilee: 50th anniversary. diamond jubilee: 60th anniversary (or 75th anniversary) platinum jubilee: 70th anniversary.