Explore the Family Name Keithley

The meaning of Keithley

English (Durham and Yorkshire): variant of Keighley.

Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.

How common is the last name Keithley in the United States?

Based on data from the Decennial U.S. Census, the surname Keithley experienced a slight decrease in popularity between 2000 and 2010. In 2000, Keithley ranked 11,599th in terms of commonness among surnames and dropped to 12,407th by 2010, marking a 6.97% decline. However, the overall count of people bearing this surname increased marginally from 2,483 in 2000 to 2,506 in 2010, reflecting a growth rate of 0.93%. Consequently, the proportion per 100,000 people decreased by 7.61%, moving from 0.92 to 0.85.

20002010Change
Rank#11,599#12,407-6.97%
Count2,4832,5060.93%
Proportion per 100k0.920.85-7.61%

Race and Ethnicity of people with the last name Keithley

The Decennial U.S. Census also provides insights into the ethnic identity associated with the surname Keithley. The majority identifying as White decreased slightly from 94.72% in 2000 to 92.42% in 2010. Meanwhile, representation from the Asian/Pacific Islander community saw a significant increase of 157.14%, albeit comprising a small fraction of the total population. Individuals identifying as having two or more races also rose substantially by 144.09%. The Hispanic community witnessed a 57.26% increase, while the Black community saw a 28.25% rise. Conversely, those identifying as American Indian and Alaskan Native decreased by 57.52%.

20002010Change
White94.72%92.42%-2.43%
Two or More Races0.93%2.27%144.09%
Black1.77%2.27%28.25%
Hispanic1.17%1.84%57.26%
Asian/Pacific Islander0.28%0.72%157.14%
American Indian and Alaskan Native1.13%0.48%-57.52%