Explore the Family Name Lanahan

The meaning of Lanahan

Irish: either a shortened and altered form of McClanahan or a variant of Lanigan.

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

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

Based on the Decennial U.S. Census data, the surname Lanahan has seen a decrease in popularity over the years. In 2000, it was ranked as the 24,663rd most popular surname, but by 2010, it had slipped to the 27,081st position, marking a 9.8% drop in rank. The actual count of people with the Lanahan last name also decreased from 949 in 2000 to 894 in 2010, a decline of 5.8%. The proportion per 100,000 people saw a decrease of 14.29%, falling from 0.35 in 2000 to 0.3 in 2010.

20002010Change
Rank#24,663#27,081-9.8%
Count949894-5.8%
Proportion per 100k0.350.3-14.29%

Race and Ethnicity of people with the last name Lanahan

In terms of ethnicity, the data from the Decennial U.S. Census shows a slight shift. In 2000, those identifying as White made up 96.73% of individuals with the Lanahan surname, but this figure dipped slightly to 95.3% by 2010. The percentage of Hispanic individuals increased by 16.29%, rising from 2.21% in 2000 to 2.57% in 2010. Those identifying as Asian/Pacific Islander and those reporting two or more races each made up less than 1% of the total in 2010. There were no recorded individuals who identified as Black or American Indian and Alaskan Native in either census year.

20002010Change
White96.73%95.3%-1.48%
Hispanic2.21%2.57%16.29%
Two or More Races0%0.89%0%
Asian/Pacific Islander0%0.67%0%
Black0%0%0%
American Indian and Alaskan Native0%0%0%