How common is a January 15 birthday?
January 15
Rare
Rarer than 94.5%of other birthday dates.
1 in 385births in this sample share your birthday.
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January 15 is the 346th most common birthday of the 366 dates in this collection, and the 21st rarest. It records 222,374 births out of 85,712,738, so roughly 1 in 385 people in this sample were born on it.
It is more common than 5.5% of the other 365 dates and rarer than 94.5%, which puts it in the top 10% rarest birthdays. It records 94.8% of an average day’s count in the sample.
January 15 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 January 15 marked.
January 15 against the days around it
| Date | Total births | Rank of 366 | |
|---|---|---|---|
| January 12 | 230,499 | #247 | |
| January 13 | 223,803 | #342 | |
| January 14 | 231,343 | #230 | |
| January 15 (this date) | 222,374 | #346 | |
| January 16 | 224,055 | #340 | |
| January 17 | 230,038 | #258 | |
| January 18 | 229,465 | #279 |
January as a whole records 10,721 births per day, ranked #12 of 12 months. Month ranking · January 14 · January 16
Has January 15 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 252.4 per 100,000; over the last five, 252.9 per 100,000 (+0.2%).
January 15 as a share of each year’s U.S. births, 1994–2014
Births on January 15 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 | 8,660 | 219.1 | |
| 1995 | 7,988 | 204.8 | |
| 1996 | 9,912 | 254.7 | |
| 1997 | 11,319 | 291.7 | |
| 1998 | 11,491 | 291.5 | |
| 1999 | 11,704 | 295.6 | |
| 2000 | 8,525 | 205.4 | |
| 2001 | 10,926 | 265.8 | |
| 2002 | 12,369 | 301.7 | |
| 2003 | 12,140 | 291.6 | |
| 2004 | 12,837 | 306.6 | |
| 2005 | 8,502 | 201.9 | |
| 2006 | 7,312 | 168.7 | |
| 2007 | 11,820 | 269.8 | |
| 2008 | 13,344 | 309.6 | |
| 2009 | 12,800 | 305.4 | |
| 2010 | 12,278 | 302.7 | |
| 2011 | 7,810 | 194.9 | |
| 2012 | 6,899 | 172.4 | |
| 2013 | 11,953 | 300.8 | |
| 2014 | 11,785 | 293.9 |
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, January 15 ranked #224 of 366 with 9,467 births per occurrence. The 1969–1988 calendar and what changed since.
January 15 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 | #229 | 98.4 | |
| England & Wales | #246 | 98.7 | |
| Denmark | #141 | 102.0 | |
| Metropolitan France | #143 | 101.0 | |
| Malaysia | #307 | 95.8 |
In the matched window the U.S. rank is #229; over the full 1994–2014 collection it is #346. 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, 16,712 have this birthday, one resident in 361. A count of people living there, wherever they were born. How many people in Denmark share a birthday.
Born on January 15
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.
- Jenny Nimmo1944British children's book author, born 1944
- Andrea Martin1947American and Canadian actress
- Marty Lyons1957American football player
- James Nesbitt1965Northern Irish actor
- Michele Granger1970American softball player
- Drew Brees1979American football player and television analyst
- Matt Holliday1980American baseball player
- Pitbull1981American rapper
- Jun. K1988South Korean singer
- Alexei Cherepanov1989–2008Russian ice hockey player
- Slava Voynov1990Russian ice hockey player
- Deebo Samuel1996American football 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
- ← January 14
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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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