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How Common is Your Birthday? Unveiling the Full List and Uncommon Celebrity Birthdays

Do you ever wonder how common your birthday really is? Are you curious to find out if there are any famous individuals who share your special day? Prepare to embark on an intriguing journey as...

Do you ever wonder how common your birthday really is? Are you curious to find out if there are any famous individuals who share your special day? Prepare to embark on an intriguing journey as we delve into the realm of birthdays, revealing fascinating insights and surprising facts along the way.

The Mystery of Shared Birthdays

Have you ever come across the "birthday paradox"? It states that in a random group of 23 people, there is approximately a 50% chance that two individuals will share the same birthday. As the group size increases, the likelihood of finding matching birthdays also grows. It's a captivating phenomenon that adds a touch of mystery to our everyday lives.

A person blows out the candles on a birthday cake.

Unveiling the Most Common Birthday

So, what is the most common birthday? According to birth data from the Centers for Disease Control and Prevention and the Social Security Administration, September 9 takes the crown. In second and third place are September 19 and 12. It's interesting to note that the entire top 10 list is comprised of September birthdays, specifically falling between September 9 and 20.

You might be wondering why September holds such popularity. One possible explanation is the holiday season. As people celebrate Christmas and New Year's, there is a sense of joy and togetherness that could contribute to the higher number of conceptions during this time. Additionally, the festive atmosphere, coupled with vacation days, provides an ideal setting for romantic encounters. In fact, December is the most popular month for engagements, further reinforcing the connection between holidays and September birthdays. A study even discovered a 9.1% peak in conceptions at the end of the year.

Scroll further to explore the complete list of birthdays ranked from most to least common.

Celebrities Born on September 9

If you happen to share a birthday with the most common day of the year, you are in good company. Here's a list of celebrities who also celebrate their special day on September 9:

  • Adam Sandler
  • Hugh Grant
  • Michelle Williams
  • Michael Bublé
  • Eric Stonestreet
  • Zoe Kazan
  • William Miller
  • Kelsey Asbille
  • Henry Thomas
  • Constance Marie

The Most Common Birth Month

While September dominates the top rankings for individual days, August claims the title for the most common birth month. Between 1994 and 2014, there were nearly 7.6 million August births. Following closely behind are July with 7.5 million births and September with 7.4 million. It's worth noting that both July and August have 31 days, while September has only 30. On the other end of the spectrum, February, with its mere 28 days, is the least common birth month.

Here is the order of birth months from most common to least common:

  1. August
  2. July
  3. September
  4. October
  5. May
  6. December
  7. March
  8. June
  9. January
  10. November
  11. April
  12. February

Unraveling the Rarest Birthdays

Unsurprisingly, the rarest birthday of the year is leap day, February 29. It occurs only once every four years, making it inevitable that it would have the fewest number of birthdays. Another uncommon birthday falls on Christmas Day, December 25. Individuals born on New Year's Day or Christmas Eve also enjoy unique birthdays, with January 1 and December 24 ranking just below Christmas.

Late November birthdays are also relatively rare, as Thanksgiving celebrations take center stage in the United States. Birthdays between November 23 and 28 fall towards the end of the calendar year. Interestingly, July 4th, which falls in the second most popular birth month, ranks as the 363rd least common birthday.

A working paper from the National Bureau of Economic Research reveals that there is an 18% decrease in births on and immediately after holidays. Parents may choose to separate fixed holidays and birthdays, influencing the decline. Additionally, fewer cesarean sections are scheduled on holidays due to reduced hospital staffing and cultural preferences.

Celebrities Born on December 25

For those who share their birthday with Christmas, or fall in the Capricorn season, here are some well-known figures who are part of this exclusive group:

  • Jeremy Strong
  • Justin Trudeau
  • Jimmy Buffett
  • Clara Barton (1821-1912)
  • Humphrey Bogart (1899-1957)
  • Annie Lennox
  • Rod Serling (1924-1975)

Birthdays: From Most Common to Least

Curious to see where your birthday ranks? Here is the comprehensive list of birthdays from most to least common:

  1. Sept. 9
  2. Sept. 19
  3. Sept. 12
  4. Sept. 17
  5. Sept. 10
  6. July 7
  7. Sept. 20
  8. Sept. 15
  9. Sept. 16
  10. Sept. 18
  11. Dec. 20
  12. Sept. 26
  13. Sept. 8
  14. Sept. 23
  15. Dec. 29
  16. Aug. 8
  17. Sept. 24
  18. July 8
  19. Dec. 19
  20. Aug. 29
  21. Aug. 15
  22. Sept. 22
  23. Dec. 30
  24. Sept. 14
  25. Sept. 25
  26. Sept. 27
  27. July 1
  28. Dec. 28
  29. Aug. 28
  30. July 2
  31. Aug. 22
  32. Sept. 21
  33. Sept. 13
  34. Aug. 30
  35. July 11
  36. Aug. 16
  37. Aug. 1
  38. July 18
  39. Aug. 20
  40. July 9
  41. July 16
  42. July 25
  43. July 15
  44. Aug. 12
  45. July 10
  46. Aug. 27
  47. Aug. 9
  48. Oct. 1
  49. July 17
  50. July 23
  51. Aug. 14
  52. July 22
  53. Aug. 18
  54. July 14
  55. Dec. 21
  56. Dec. 18
  57. Oct. 3
  58. Dec. 27
  59. July 21
  60. Aug. 23
  61. Aug. 21
  62. Aug. 19
  63. Feb. 14
  64. Aug. 26
  65. July 28
  66. Aug. 5
  67. Aug. 11
  68. July 24
  69. July 30
  70. July 29
  71. June 27
  72. Aug. 7
  73. Aug. 6
  74. July 26
  75. Aug. 2
  76. Aug. 25
  77. Oct. 2
  78. Sept. 29
  79. Aug. 4
  80. Nov. 21
  81. July 12
  82. June 28
  83. Oct. 10
  84. Aug. 31
  85. Sept. 28
  86. Aug. 17
  87. June 30
  88. July 19
  89. May 23
  90. July 31
  91. Sept. 11
  92. June 20
  93. Aug. 10
  94. Oct. 4
  95. Sept. 30
  96. July 6
  97. Dec. 17
  98. Aug. 13
  99. Aug. 24
  100. Nov. 20
  101. Dec. 12
  102. Sept. 5
  103. July 20
  104. July 27
  105. June 25
  106. Sept. 7
  107. Dec. 22
  108. June 26
  109. May 24
  110. Dec. 16
  111. June 29
  112. Nov. 1
  113. June 2
  114. June 18
  115. Oct. 6
  116. Aug. 3
  117. June 24
  118. Oct. 7
  119. Oct. 8
  120. Nov. 7
  121. July 3
  122. June 21
  123. Oct. 17
  124. Sept. 6
  125. June 14
  126. May 22
  127. May 16
  128. Oct. 24
  129. Oct. 5
  130. Oct. 11
  131. June 16
  132. Oct. 15
  133. June 3
  134. Nov. 19
  135. May 21
  136. June 17
  137. Dec. 1
  138. June 23
  139. June 6
  140. Nov. 14
  141. Nov. 15
  142. June 10
  143. June 4
  144. April 4
  145. Sept. 4
  146. June 12
  147. May 20
  148. Nov. 5
  149. Dec. 15
  150. Feb. 15
  151. Oct. 25
  152. Dec. 2
  153. March 21
  154. July 13
  155. Nov. 8
  156. June 19
  157. Nov. 18
  158. June 5
  159. June 1
  160. June 7
  161. June 11
  162. May 15
  163. Oct. 22
  164. Oct. 18
  165. Oct. 14
  166. Feb. 7
  167. Dec. 3
  168. Nov. 11
  169. March 17
  170. Oct. 9
  171. Dec. 5
  172. Nov. 3
  173. June 22
  174. March 1
  175. Nov. 4
  176. Nov. 17
  177. May 17
  178. Sept. 3
  179. March 14
  180. Oct. 16
  181. May 2
  182. Feb. 22
  183. Oct. 28
  184. March 7
  185. June 9
  186. Nov. 6
  187. Nov. 2
  188. June 15
  189. Nov. 12
  190. March 3
  191. May 5
  192. May 10
  193. May 14
  194. Oct. 20
  195. Feb. 8
  196. April 11
  197. Oct. 21
  198. Feb. 28
  199. Jan. 24
  200. Oct. 23
  201. March 28
  202. June 13
  203. May 9
  204. Nov. 10
  205. Oct. 27
  206. June 8
  207. Jan. 10
  208. Nov. 16
  209. Jan. 4
  210. May 12
  211. Feb. 10
  212. Feb. 11
  213. Oct. 12
  214. Oct. 29
  215. March 15
  216. Feb. 21
  217. April 2
  218. April 18
  219. March 12
  220. March 20
  221. May 1
  222. Sept. 2
  223. May 19
  224. April 25
  225. March 4
  226. Dec. 4
  227. March 5
  228. March 8
  229. Jan. 14
  230. Jan. 11
  231. March 25
  232. Feb. 25
  233. March 22
  234. Dec. 6
  235. May 8
  236. March 18
  237. Jan. 5
  238. April 12
  239. Dec. 14
  240. Dec. 10
  241. Jan. 25
  242. May 6
  243. Feb. 2
  244. Feb. 16
  245. May 7
  246. Feb. 18
  247. March 10
  248. Jan. 12
  249. March 11
  250. Sept. 1
  251. Feb. 1
  252. Oct. 26
  253. Feb. 23
  254. Nov. 9
  255. Jan. 7
  256. March 24
  257. March 6
  258. March 19
  259. Jan. 6
  260. April 16
  261. Feb. 4
  262. Feb. 24
  263. May 3
  264. Jan. 17
  265. May 30
  266. April 5
  267. May 18
  268. April 3
  269. Feb. 12
  270. April 17
  271. March 27
  272. Feb. 9
  273. Dec. 8
  274. April 19
  275. April 8
  276. March 26
  277. Feb. 20
  278. Jan. 18
  279. Jan. 31
  280. Dec. 11
  281. April 15
  282. April 26
  283. April 22
  284. March 29
  285. Jan. 23
  286. April 23
  287. April 7
  288. Feb. 27
  289. Nov. 30
  290. Dec. 13
  291. Feb. 17
  292. Oct. 19
  293. Dec. 9
  294. April 24
  295. Jan. 26
  296. Feb. 3
  297. Jan. 28
  298. April 9
  299. May 25
  300. April 10
  301. Jan. 20
  302. Jan. 21
  303. Jan. 27
  304. April 21
  305. Oct. 30
  306. Jan. 3
  307. April 14
  308. April 28
  309. March 2
  310. May 28
  311. Feb. 6
  312. May 29
  313. March 31
  314. March 16
  315. Oct. 13
  316. March 9
  317. Nov. 29
  318. Jan. 30
  319. May 11
  320. Nov. 13
  321. Dec. 7
  322. March 23
  323. April 29
  324. April 30
  325. Feb. 26
  326. May 31
  327. May 4
  328. April 20
  329. March 30
  330. May 13
  331. May 27
  332. Jan. 19
  333. Feb. 5
  334. Jan. 22
  335. Feb. 19
  336. April 27
  337. Nov. 22
  338. March 13
  339. April 6
  340. Jan. 9
  341. Jan. 16
  342. Jan. 13
  343. Jan. 8
  344. Feb. 13
  345. Jan. 29
  346. Jan. 15
  347. July 5
  348. May 26
  349. Dec. 31
  350. April 13
  351. Dec. 23
  352. April 1
  353. Nov. 28
  354. Nov. 26
  355. Nov. 24
  356. Oct. 31
  357. Nov. 25
  358. Nov. 23
  359. Nov. 27
  360. Dec. 26
  361. Jan. 2
  362. July 4
  363. Dec. 24
  364. Jan. 1
  365. Dec. 25
  366. Feb. 29

Seeking More Answers?

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