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Zodiac Killer

1940 - Today

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The Zodiac Killer is the pseudonym of an unidentified serial killer who operated in Northern California in the late 1960s. The case has been described as the most famous unsolved murder case in American history. Read more on Wikipedia

Since 2007, the English Wikipedia page of Zodiac Killer has received more than 31,419,715 page views. His biography is available in 50 different languages on Wikipedia (up from 49 in 2019). Zodiac Killer is the 16th most popular extremist (up from 17th in 2019), the 362nd most popular biography from United States (up from 363rd in 2019) and the 6th most popular American Extremist.

The Zodiac Killer is most famous for the murders that occurred in the late 1960s and early 1970s in California. He is believed to have killed at least five people, but the number of victims could be as high as 37.

Memorability Metrics

  • 31M

    Page Views (PV)

  • 68.43

    Historical Popularity Index (HPI)

  • 50

    Languages Editions (L)

  • 5.20

    Effective Languages (L*)

  • 4.39

    Coefficient of Variation (CV)

Page views of Zodiac Killers by language


Among extremists, Zodiac Killer ranks 16 out of 209Before him are Man in the Iron Mask, Gilles de Rais, Ted Kaczynski, Andrei Chikatilo, Ramón Mercader, and Abdullah Öcalan. After him are Ed Gein, Abu Bakr al-Baghdadi, Albert Fish, Ulrike Meinhof, Charles Ponzi, and Ayman al-Zawahiri.

Most Popular Extremists in Wikipedia

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Among people born in 1940, Zodiac Killer ranks 25Before him are J. M. Coetzee, Wangari Maathai, Martin Sheen, Julie Christie, Gao Xingjian, and Pina Bausch. After him are Giorgio Moroder, Abbas Kiarostami, Brian De Palma, J. M. G. Le Clézio, Patrick Stewart, and Michel Temer.

Others Born in 1940

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In United States

Among people born in United States, Zodiac Killer ranks 362 out of 18,182Before him are Arthur Compton (1892), Jack Lemmon (1925), Henry James (1843), Robert Johnson (1911), Jefferson Davis (1808), and Hugh Hefner (1926). After him are Herbert A. Simon (1916), Mickey Rourke (1952), Ed Gein (1906), Robert Woodrow Wilson (1936), Calvin Klein (1942), and J. P. Morgan (1837).

Among EXTREMISTS In United States

Among extremists born in United States, Zodiac Killer ranks 6Before him are John Wilkes Booth (1838), Charles Manson (1934), Ted Bundy (1946), Lee Harvey Oswald (1939), and Ted Kaczynski (1942). After him are Ed Gein (1906), Albert Fish (1870), John Wayne Gacy (1942), Jim Jones (1931), Machine Gun Kelly (1895), and H. H. Holmes (1861).