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Name Lineage

    The surname Koy

    A Khmer surname, carried by 567 people in the United States.

    1 syllable Soundex K000

    Koy: #38,902 of 162,253 surnames in the 2010 US Census #1Smith#160,975Doriott#10Martinez#100Jimenez#1,000Archer#10,001Dubon Koy #38,902, 567 people Koy: #38,902 of 162,253 surnames in the 2010 US Census #1Smith#100Jimenez Koy #38,902, 567 people
    Every surname held by 100 or more people in the 2010 US Census, most common on the left (162,253 in all). Koy is more common than 76% of them.

    Origin

    Khmer origin

    Two main origins: * Borrowed from Khmer គយ (kɔɔy). * Borrowed from German Koy, a surname with an unexplained origin.

    One of 19 Khmer surnames on this site.

    Origin from Wiktionary (CC BY-SA 4.0).

    How common it is

    2010 US Census

    There were 567 people named Koy in the United States in 2010, about 1 in every 544,525 Americans. That is up 17% since 2000, when the Census counted 486.

    #38,902
    rank among US surnames
    567
    people in 2010
    0.2
    per 100,000 Americans
    +16.7%
    change since 2000 (was #42,056)

    Who is named Koy

    Race and Hispanic origin as people reported it in the 2010 Census

    53% of people named Koy identified as Asian and Pacific Islander, 40% as white (not Hispanic) and 3.7% as Black (not Hispanic).

    • Asian and Pacific Islander 53%
    • White (not Hispanic) 40%
    • Black (not Hispanic) 3.7%
    • Two or more races 2.6%
    The Census suppresses very small shares to protect privacy; Hispanic, Native American are not shown.

    Compare: most common surnames among Asian and Pacific Islander Americans.

    Spellings and sound-alikes

    Useful when a record has your ancestor under another spelling

    Surnames that sound like Koy

    Koy has the Soundex code K000, the code US census indexes have used since the 1930s. Every surname with code K000.

    Other Khmer surnames

    All 19 Khmer surnames

    Questions

    Where does the surname Koy come from?
    Two main origins: * Borrowed from Khmer គយ (kɔɔy). * Borrowed from German Koy, a surname with an unexplained origin.
    How common is the surname Koy?
    567 people in the United States had the surname Koy in the 2010 Census, about 1 in every 544,525 Americans. It ranked 38,902nd of 162,253 surnames.
    What ethnicity is the surname Koy?
    In the 2010 Census, 53% of people named Koy identified as Asian and Pacific Islander, and 40% as white (not Hispanic).
    Is the surname Koy getting more or less common?
    More common. 486 people carried it in the 2000 Census and 567 in 2010, up 17%.