How common is the surname Killian?

12,717 people in the United States had the surname Killian in the 2010 Census, about 1 in every 24,278 Americans. It ranked 2,833rd of 162,253 surnames.

Who is the most famous person named Killian?

George Killian, American basketball coach, followed by Adam Killian.

Where is the surname Killian most common?

Wikidata records people named Killian in the United States.

Is the surname Killian getting more or less common?

More common. 11,947 people carried it in the 2000 Census and 12,717 in 2010, up 6.4%.

Is Killian also a first name?

Yes. Killian is used as a first name as well as a surname; its first-name page has the meaning and how many babies were given it.

The surname Killian

A surname, carried by 12,717 people in the United States.

2 syllables Soundex K450 Also a first name

Every surname held by 100 or more people in the 2010 US Census, most common on the left (162,253 in all). Killian is more common than 98.3% of them.

Origin

An anglicized spelling of Irish Cillian.

Origin from Wiktionary (CC BY-SA 4.0).

How common it is

2010 US Census

There were 12,717 people named Killian in the United States in 2010, about 1 in every 24,278 Americans. That is up 6.4% since 2000, when the Census counted 11,947.

#2,833

rank among US surnames

12,717

people in 2010

4.3

per 100,000 Americans

+6.4%

change since 2000 (was #2,771)

Rank	Surname	People	1 in
#2,824	Main	12,776	24,166
#2,825	Tavares	12,766	24,185
#2,826	Barone	12,758	24,200
#2,828	Rees	12,754	24,208
#2,829	Pedraza	12,748	24,219
#2,830	Crisp	12,741	24,232
#2,831	Gillette	12,724	24,265

Who is named Killian

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

90% of people named Killian identified as white (not Hispanic), 4.4% as Black (not Hispanic) and 2.3% as Hispanic or Latino (any race).

White (not Hispanic) 90%
Black (not Hispanic) 4.4%
Hispanic or Latino (any race) 2.3%
Two or more races 1.8%
American Indian and Alaska Native 0.6%
Asian and Pacific Islander 0.5%

Compare: most common surnames among white Americans.

Famous Killians

2 notable people on Wikidata, most written-about first

George Killian
American basketball coach, 1924–2017
Adam Killian
American pornographic actor, born 1975

Spellings and sound-alikes

Useful when a record has your ancestor under another spelling

Surnames that sound like Killian

Killian has the Soundex code K450, the code US census indexes have used since the 1930s. Every surname with code K450.

Questions

Where does the surname Killian come from?: An anglicized spelling of Irish Cillian.
How common is the surname Killian?: 12,717 people in the United States had the surname Killian in the 2010 Census, about 1 in every 24,278 Americans. It ranked 2,833rd of 162,253 surnames.
What ethnicity is the surname Killian?: In the 2010 Census, 90% of people named Killian identified as white (not Hispanic), and 4.4% as Black (not Hispanic).
Who is the most famous person named Killian?: George Killian, American basketball coach, followed by Adam Killian.
Where is the surname Killian most common?: Wikidata records people named Killian in the United States.
Is the surname Killian getting more or less common?: More common. 11,947 people carried it in the 2000 Census and 12,717 in 2010, up 6.4%.
Is Killian also a first name?: Yes. Killian is used as a first name as well as a surname; its first-name page has the meaning and how many babies were given it.