January 21 Birthday

Zodiac sign, birthstone, birth flower and more for everyone born on January 21.

January 21 zodiac sign: Aquarius

Despite the Water-bearer symbol, Aquarius is an air sign. It is linked with new ideas, friendship, community and doing things differently.

More about January birthdays

How common is a January 21 birthday?

January 21 is the 302nd most common birthday in the US out of 366. An average of 10,866 babies were born on it each year from 1994 to 2014, 3% fewer than on an average day.

Based on US birth records, 1994–2014. See every date ranked.

What day of the week was January 21?

Here’s the day of the week January 21 fell on each year, and the Chinese zodiac animal for someone born that day.

Chinese New Year falls between January 21 and February 20, so the animal for January 21 depends on the year. In some years it belongs to the previous year’s animal.

More about January 21

Want your exact age or a countdown? Try the age calculator on our sister site Day Count Box.

January 21 birthday questions

What zodiac sign is January 21?

People born on January 21 are Aquarius (♒), the Water-bearer. Aquarius season runs from January 20 – February 18.

What is the birthstone for January 21?

The birthstone for January 21 is the January birthstone: garnet.

What is the birth flower for January 21?

January’s birth flowers are the carnation and snowdrop.

Is January 21 on a cusp?

Yes. January 21 falls in the Cusp of Mystery, between Capricorn and Aquarius.

How rare is a January 21 birthday?

January 21 is the 302nd most common birthday in the US out of 366. An average of 10,866 babies were born on it each year from 1994 to 2014, 3% fewer than on an average day.

What day of the year is January 21?

January 21 is day 21 of the year, or day 21 in a leap year.

Other January birthdays

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