March 21 Birthday Statistics
People born on March 21 have a Aries birthday, the Aquamarine and bloodstone birthstone, and the Daffodil birth flower. This date is day 81 of a leap-year calendar and has a U.S. birthday rank of #130 out of 366 (2000–2014 births).
March 21 Birthday Overview
A March 21 birthday falls in late winter and early spring and carries the traditional symbols of March: Aquamarine and bloodstone as the birthstone and Daffodil as the birth flower. The zodiac sign is Aries, a Fire sign represented by the Ram.
The U.S. rank compares this date with all 366 calendar birthdays using recorded birth counts from 2000–2014. The counts and calculation method appear below.
Famous Birthday Matches
- Johann Sebastian Bach
- Rosie O’Donnell
- Gary Oldman
- Matthew Broderick
- Ali Abdullah Saleh
- Stephen L Johnson
- Eric Rohmer
- Peter Brook
What Happened on March 21?
The curated event list does not include an exact same-date entry for this birthday. The What Happened on My Birthday? tool can show nearby date facts and related calendar notes.
Try These March 21 Birthday Tools
How Common Is March 21?
March 21 ranks #130 of 366 by total births in this U.S. dataset. The file records 173,095 births on this month and day across 2000–2014, or 0.278% of its 62,187,024 recorded births.
- Average when this date occurred
- 11,539.7 births across 15 occurrences
- Lowest recorded count for this date
- 6,992 in 2010
- Highest recorded count for this date
- 13,710 in 2007
These are historical counts for the United States, not a worldwide ranking or a forecast. Weekdays, holidays and year-to-year changes can affect the counts; this comparison does not establish their causes.
Source: U.S. births, 2000–2014, from the Social Security Administration dataset published by FiveThirtyEight. BirthdayStatistics.com aggregates the recorded counts by month and day. Data licensed CC BY 4.0. Method and limitations.