Explore the Family Name Splain

The meaning of Splain

Irish: variant of Spillane.

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

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

Based on data from the Decennial U.S. Census, the popularity of the surname Splain saw a slight decline between 2000 and 2010. In 2000, Splain ranked 41,522 in popularity with 494 individuals sharing this surname. By 2010, however, it had slipped to rank 45,569 with only 469 individuals identified as Splains, representing a 5.06% decrease in count. The proportion per 100,000 also dropped by 11.11%, moving from 0.18 to 0.16.

20002010Change
Rank#41,522#45,569-9.75%
Count494469-5.06%
Proportion per 100k0.180.16-11.11%

Race and Ethnicity of people with the last name Splain

In terms of ethnicity, the Decennial U.S. Census indicates some shifts among those bearing the surname Splain. Between 2000 and 2010, the percentage of individuals identifying as White increased slightly, from 92.91% to 93.18%. Those claiming two or more ethnicities rose substantially, from 1.62% to 2.35%, an increase of 45.06%. Meanwhile, the proportion of those identifying as Hispanic dropped by 20.99%, from 1.62% to 1.28%. Interestingly, the number of individuals under Asian/Pacific Islander and Black categories went down to zero in 2010, while the American Indian and Alaskan Native category saw a modest rise of 5.56%, moving from 1.62% to 1.71%.

20002010Change
White92.91%93.18%0.29%
Two or More Races1.62%2.35%45.06%
American Indian and Alaskan Native1.62%1.71%5.56%
Hispanic1.62%1.28%-20.99%
Asian/Pacific Islander1.21%0%0%
Black1.01%0%0%