Explore the Family Name Greenan
The meaning of Greenan
Irish (mainly Cavan and Sligo): shortened Anglicized form of Gaelic Ó Grianáin ‘descendant of Grianán’, a personal name probably derived from a diminutive of grian ‘sun’, grianach ‘sunny, cheerful’.
Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.
How common is the last name Greenan in the United States?
Based on the Decennial U.S. Census data, the surname Greenan has seen a slight decrease in popularity from 2000 to 2010. In 2000, it was ranked 27,744 and by 2010 it had slipped to 29,138, a decline of 5.02 percent. The count also saw a marginal drop by 0.37 percent from 816 to 813 individuals with the surname. The proportion per 100,000 people decreased from 0.3 to 0.28, a change of -6.67 percent.
| 2000 | 2010 | Change | |
|---|---|---|---|
| Rank | #27,744 | #29,138 | -5.02% |
| Count | 816 | 813 | -0.37% |
| Proportion per 100k | 0.3 | 0.28 | -6.67% |
Race and Ethnicity of people with the last name Greenan
The ethnic identity associated with the surname Greenan also underwent some changes between 2000 and 2010, as derived from the Decennial U.S. Census data. Those identifying as White remained the majority, seeing a slight increase from 95.10 percent to 96.06 percent. The percentage of Greenans identifying as Hispanic and those identifying with two or more ethnicities saw decreases of approximately 20 percent each. There were no reported Greenans who identified as Asian/Pacific Islander, Black, or American Indian and Alaskan Native in either census year.
| 2000 | 2010 | Change | |
|---|---|---|---|
| White | 95.1% | 96.06% | 1.01% |
| Hispanic | 2.33% | 1.85% | -20.6% |
| Two or More Races | 1.23% | 0.98% | -20.33% |
| Asian/Pacific Islander | 0% | 0% | 0% |
| Black | 0% | 0% | 0% |
| American Indian and Alaskan Native | 0.86% | 0% | 0% |