Astrid, Astroline astrologer
This article is based on publicly available data on birth rates in the U.S. — we explore how common each zodiac sign is. This article is written for educational and entertainment purposes and does not predict future birth trends or actual personality traits.
Key Takeaways
- Virgo most often tops the rankings of the most common signs — this is confirmed by several sources, including a published analysis by The Washington Post.
- At least one widely cited American dataset ranks Scorpio first (9.6%) and Virgo second (9.4%). The rankings vary depending on the source and methodology.
- Aquarius is the rarest sign according to several independent sources.
- All these figures reflect only the frequency of birth dates, not the personality traits of any particular sign.
What Is Generally Considered To Be The Most Common Sign?
To compile such a ranking, you need actual data on children born, not surveys or opinions. In the U.S., the primary source of such data is the National Center for Health Statistics (NCHS), part of the CDC. Even the U.S. Census Bureau itself refers people to the NCHS for this information, rather than collecting it on its own. Social Security Administration (SSA) records also serve as a good supplementary source — they contain a large volume of birth dates as well. And the Washington Post published its own analysis of data on zodiac signs, naming Virgo as the most common sign, followed by Cancer and Leo.
This is a far more rigorous approach than that taken in most astrological articles, which simply declare, “The most common sign is this one,” without a single reference to a source — the kind of unsourced claim that also shows up constantly in daily horoscope content. Everything we discuss below is a look back at births that have already occurred, not a prediction of the future.
Which Zodiac Sign Is The Most Common?
Virgo (August 23–September 22) ranks first in the Washington Post’s analysis. But there’s another widely cited American dataset that paints a slightly different picture: in that one, Scorpio comes in first with 9.6%, and Virgo is second with 9.4%. This is a good reminder that the numbers vary depending on which dataset and which years you’re looking at.
Virgo is an earth sign with a mutable modality, and in astrology it is traditionally associated with reliability, adaptability, and attention to detail. Whether this description applies to a particular Virgo or not is a separate question, and it should be kept separate from birth statistics. Yes, we’re talking about the same sign, but one does not explain the other.
Why Virgo Is The Most Common Sign
The real reason is demographic, not astrological. The Virgo season falls at the end of summer and the beginning of fall, which is one of the “most populous” times of year in terms of births in the U.S. This is linked to higher conception rates approximately nine months earlier, in late November and December.
A peer-reviewed cohort study — Wesselink et al., “Seasonal patterns in fecundability in North America and Denmark: a preconception cohort study,” published in Human Reproduction (2020) — documented precisely this peak, drawing on pregnancy-planning cohorts in North America and Denmark. The study found peak fecundability in late November and early December in both regions, with the seasonal effect measuring about 1.16 for North America overall and reaching as high as 1.45 at latitudes below 35°N, which covers the southern United States. An earlier study of U.S. natural population statistics found a similar seasonal pattern; conceptions were concentrated during the same period. Opinions differ as to which month, August or September, yields the most births in a given year, but the spike itself, occurring in the “late summer to early fall” range, is consistently evident in any case. And the reason for this is precisely the timing of conception, not astrology.
From Rarest To Most Common: The Complete Ranking
The ranking below is based on a single, widely cited American dataset. Other analyses, including one by the Washington Post, yield a slightly different order. And no sign here is “best” or “worst” — these are simply figures on birth frequency.
| Rank | Sign | Percentage |
| 1 | Scorpio | 9.6% |
| 2 | Virgo | 9.4% |
| 3 | Gemini | 9.3% |
| 4 | Pisces | 9.1% |
| 5 | Libra | 8.8% |
| 6 | Cancer | 8.5% |
| 7 | Taurus | 8.3% |
| 8 | Capricorn | 8.2% |
| 9 | Aries | 8.1% |
| 10 | Sagittarius | 7.3% |
| 11 | Leo | 7.1% |
| 12 | Aquarius | 6.3% |
The fact that Aquarius came in last is confirmed by several independent sources: February typically has the fewest births in the U.S. of any month, and Aquarius spans January 20 through February 18 — right in the middle of this low-birth period. As for Capricorn ranking lower than one might expect, this is explained by the same winter decline — here, too, it all comes down to conception nine months earlier.
What Exactly Determines Your Zodiac Sign?
In everyday speech, the term “zodiac sign” almost always refers specifically to the Sun sign — the only sign that can be determined simply by your date of birth, without knowing the exact time or place. It’s also the only sign most daily horoscope content actually uses, since a general horoscope written for “all Geminis” or “all Virgos” has no way to account for anyone’s Moon or Rising sign. A person’s full astrological sign profile is a broader thing than this — a complete birth chart maps dozens of placements, of which the Sun sign is just one, even though it’s the one this entire ranking is built around. Here are the standard dates for the Western (tropical) zodiac:
- Aries: March 21 – April 19
- Taurus: April 20 – May 20
- Gemini: May 21 – June 20/21
- Cancer: June 21/22 – July 22
- Leo: July 23 – August 22
- Virgo: August 23 – September 22
- Libra: September 23 – October 22/23
- Scorpio: October 23/24 – November 21
- Sagittarius: November 22 – December 21
- Capricorn: December 22 – January 19
- Aquarius: January 20 – February 18
- Pisces: February 19 – March 20
These dates may shift by a day in either direction depending on the source and the year — the tropical zodiac is based on the Earth’s actual orbit, not on a fixed calendar grid.
The Sun, the Moon, and the Ascendant — What’s the Difference? All frequency figures in this article refer specifically to the Sun sign; it is the only element of the natal chart that can be calculated based on a single date of birth. The Moon and the Ascendant (rising sign) require the exact time and place of birth, so neither is included in the calculations presented here — which is also why they’re left out of most horoscope content, despite shaping someone’s astrological sign profile just as much as the Sun does.
Is It True That The Season Of Birth Shapes One’s Personality?
Popular astrological claims and serious peer-reviewed research on the season of birth are constantly confused with one another, and for no good reason — including, often, in horoscope writing that borrows the language of “research” without citing any. One peer-reviewed cohort study — Asano et al., “Season of Birth Predicts Emotional and Behavioral Regulation in 18-Month-Old Infants,” published in Frontiers in Public Health (2016), drawing on the Hamamatsu Birth Cohort for Mothers and Children in Japan — found higher levels of self-control (what the researchers call “effortful control”) and lower levels of aggression in infants born in the spring and summer compared to those born in the winter. A separate, earlier study found differences in temperament based on birth season, for example, in the desire for novelty and in persistence, but the researchers specifically clarified that these were correlations, not proof of direct causation.
None of these studies have anything to do with astrology or zodiac signs. This is a completely separate field of science that studies seasonal biology and environmental factors associated with the time of birth. If any of this happens to coincide with the traditional traits of a particular sign, it is simply a coincidence, not a confirmation of astrology. These are two different matters, and they should not be confused.
Why You Can Trust This Article
This article draws on data from the NCHS/CDC as the primary source on U.S. birth rates, as well as SSA records and the Washington Post’s own published analysis, alongside two peer-reviewed studies — Wesselink et al. (2020) in Human Reproduction and Asano et al. (2016) in Frontiers in Public Health — cited by name rather than left as generic “researchers.” This is significantly higher than the standard that most astrological content doesn’t even attempt to meet — much of it simply repeats the phrase “most common sign” without a single reference to actual data. Astroline combines this same verified factual basis with astrological interpretation — but clearly separates the two rather than lumping them together.
Frequently Asked Questions
Aquarius (January 20–February 18) is the rarest sign according to several sources, mainly because fewer children are traditionally born in February than in any other month in the U.S. This pattern consistently repeats across all the independent datasets we’ve examined.
The Virgo period, late summer and early fall, coincides with one of the “busiest” seasons for births in the U.S., which, in turn, is linked to a peak in conceptions about nine months earlier, in late November and December. An analysis by The Washington Post names Virgo as the most common sign overall.
Virgo tops the list according to The Washington Post’s analysis, although at least one other widely cited U.S. dataset ranks Scorpio first at 9.6% and Virgo second at 9.4%. Who the “winner” really is depends on which source you consult.
Astrology views zodiac signs as a lens through which to reflect on personality traits, not as a scientifically proven cause of character. Research on birth season belongs to an entirely different scientific field and should not be interpreted as confirmation of astrology.
Yes — such rankings are based on actual birth date records from sources like the NCHS/CDC and the SSA, not on surveys or reader questionnaires. That said, different datasets may still yield slightly different rankings.
The Sun sign reflects the Sun’s position at the moment of birth and is calculated simply by the date of birth. For the Moon sign and the Ascendant, the exact time and place of birth are needed — this adds details that no “Sun-only” ranking, or generic horoscope, can account for.
Capricorn, Aquarius, and Pisces fall during the winter, when fewer children are born in the U.S. overall than in late summer and fall. This pattern is consistently evident in the frequency data examined.
No — Scorpio ranks near the top of most frequency rankings: it ranks first in one widely cited U.S. dataset with a share of 9.6% and second in a separate analysis by The Washington Post. It is one of the most common signs, not a rare one.
Researchers take recorded birth dates from sources such as the NCHS/CDC or the SSA, and then break these dates down into zodiac sign ranges to calculate each sign’s share of the total number of births. The resulting percentages may vary slightly depending on the dataset and the time period under consideration.
Sources
- Wesselink, A.K., Wise, L.A., Hatch, E.E., Mikkelsen, E.M., Sørensen, H.T., Riis, A.H., et al. “Seasonal patterns in fecundability in North America and Denmark: a preconception cohort study.” Human Reproduction, 35 (2020): 565–572.
- Asano, R., Tsuchiya, K.J., Harada, T., et al. “Season of Birth Predicts Emotional and Behavioral Regulation in 18-Month-Old Infants: Hamamatsu Birth Cohort for Mothers and Children (HBC Study).” Frontiers in Public Health, 4 (2016).
- The Washington Post, zodiac sign birth-frequency analysis (referenced throughout).
- National Center for Health Statistics (NCHS/CDC); Social Security Administration (SSA) birth records.