How common is a August 13 birthday?
August 13
Common
More common than 73.4%of other birthday dates.
1 in 355births in this sample share your birthday.
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August 13 is the 98th most common birthday of the 366 dates in this collection, and the 269th rarest. It records 241,760 births out of 85,712,738, so roughly 1 in 355 people in this sample were born on it.
It is more common than 73.4% of the other 365 dates and rarer than 26.6%. It records 103.0% of an average day’s count in the sample.
August 13 among all 366 dates
All 366 dates sorted from most to least common by recorded U.S. births 1994–2014, coloured by rarity tier, with August 13 marked.
August 13 against the days around it
| Date | Total births | Rank of 366 | |
|---|---|---|---|
| August 10 | 242,075 | #96 | |
| August 11 | 244,532 | #68 | |
| August 12 | 247,596 | #44 | |
| August 13 (this date) | 241,760 | #98 | |
| August 14 | 246,621 | #51 | |
| August 15 | 251,448 | #21 | |
| August 16 | 248,450 | #36 |
August as a whole records 11,712 births per day, ranked #2 of 12 months. Month ranking · August 12 · August 14
Has August 13 changed over time?
Annual U.S. birth totals changed across this window, so a raw daily count moves with the size of the year. The chart uses each year's share of that year's births instead, in births per 100,000. Averaged over the first five observed years it is 279.9 per 100,000; over the last five, 291.6 per 100,000 (+4.2%).
August 13 as a share of each year’s U.S. births, 1994–2014
Births on August 13 per 100,000 births in that year, one point per year, with the change of source at 2000 marked and the first-five and last-five year means drawn as bands.
| Year | Births on this date | Per 100,000 births | |
|---|---|---|---|
| 1994 | 9,474 | 239.7 | |
| 1995 | 8,421 | 215.9 | |
| 1996 | 12,407 | 318.8 | |
| 1997 | 11,963 | 308.3 | |
| 1998 | 12,487 | 316.8 | |
| 1999 | 11,924 | 301.2 | |
| 2000 | 8,313 | 200.3 | |
| 2001 | 11,682 | 284.2 | |
| 2002 | 13,603 | 331.8 | |
| 2003 | 13,202 | 317.1 | |
| 2004 | 12,275 | 293.2 | |
| 2005 | 9,049 | 214.8 | |
| 2006 | 7,979 | 184.1 | |
| 2007 | 13,199 | 301.3 | |
| 2008 | 13,933 | 323.2 | |
| 2009 | 13,391 | 319.5 | |
| 2010 | 12,092 | 298.1 | |
| 2011 | 8,448 | 210.8 | |
| 2012 | 12,126 | 303.1 | |
| 2013 | 12,975 | 326.6 | |
| 2014 | 12,817 | 319.6 |
Source break: 1994–1999 counts come from the CDC/NCHS daily file and 2000–2014 from the Social Security Administration daily file. The overlapping years 2000–2003 are taken from the SSA file only, so each year is counted once. But the step at 2000 is a change of source as well as a change of year, and any comparison across it includes that change.
The weekday the date fell on, scheduling practice and recording practice are all inside these lines.
A generation earlier, in the separate daily file for 1969–1988, August 13 ranked #56 of 366 with 10,153 births per occurrence. The 1969–1988 calendar and what changed since.
August 13 in five countries
Countries are compared only over the matched years 2007–2014, which all five sources cover completely, and using births per occurrence so that leap day is handled the same way everywhere. Each country's records are counted on their own.
| Country | Rank of 366 | Index (100 = average day) | |
|---|---|---|---|
| United States | #18 | 109.8 | |
| England & Wales | #102 | 101.5 | |
| Denmark | #32 | 107.8 | |
| Metropolitan France | #30 | 105.4 | |
| Malaysia | #31 | 105.8 |
In the matched window the U.S. rank is #18; over the full 1994–2014 collection it is #98. The two numbers answer different questions and usually differ for two reasons at once: the window is eight years against twenty-one, and the metric is births per occurrence against the total across the whole period. Every figure on this page names its window and its metric. Full five-country study.
Among the 6,025,603 people living in Denmark on January 1, 2026, 16,467 have this birthday, one resident in 366. A count of people living there, wherever they were born. How many people in Denmark share a birthday.
Born on August 13
12 people from the English Wikipedia “On this day” birth lists, oldest first. A reading list. Every birth figure on this page comes from the national records.
- Bobby Clarke1949Canadian ice hockey player
- Dave Carter1952American singer-songwriter
- David Feherty1958Irish professional golfer, broadcaster, writer
- Sridevi1963–2018Indian actress
- Joe Perry1974English snooker player
- James Morrison1984British singer
- Demetrious Johnson1986American mixed martial artist
- Devin McCourty1987American football player
- Jason McCourty1987American football player
- Justin Greene1989American basketball player and coach
- DeMarcus Cousins1990American basketball player
- Johnny Gaudreau1993–2024American ice hockey player
Names and descriptions from English Wikipedia, CC BY-SA 4.0, retrieved 2026-09-11; curated arts/science/sport entries, years 1800–2008. not a celebrity census. conflicting identities excluded.
Keep going
- ← August 12
- August 14 →
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- Explore the whole calendar
Sources, method and limits
Main ranking: 85,712,738 recorded U.S. births on 7,670 calendar dates, 1994–2014. CDC/NCHS daily counts for 1994–1999 and Social Security Administration daily counts for 2000–2014, as compiled by FiveThirtyEight and attributed under CC BY 4.0. The overlapping years 2000–2003 are counted once.
Ranks compare totals across the 366 observed month-and-day dates. February 29 occurred 5 times in this window; every other date occurred 21 times, so per-occurrence figures are used wherever seasonality is compared.
Every figure above comes from the administrative records named here, at the granularity those records publish: a day, a month or a year. Coverage and definitions differ between countries and eras, so two sources are combined only where their documentation states the windows are separate, and the page where that happens says so.
Full method, leap-day treatment and definitions.
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