Explore the Family Name Janosko

The meaning of Janosko

Slovak (Janoško, also Jánoško): from a pet form of the personal name Jánoš or Janoš (see Janos), a derivative of Ján (see Jan).

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

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

Based on the Decennial U.S. Census data, the surname Janosko has shown a decrease in popularity between 2000 and 2010. In 2000, the Janosko surname ranked 46,083 in terms of popularity with a count of 436 occurrences. By 2010, the rank had dropped to 48,717 and the count had slightly decreased to 433 occurrences. This represents a decline of 5.72% in rank and a 0.69% reduction in the overall count. The proportion of people with the Janosko surname per 100,000 individuals also declined by 6.25%, moving from 0.16 in 2000 to 0.15 in 2010.

	2000	2010	Change
Rank	#46,083	#48,717	-5.72%
Count	436	433	-0.69%
Proportion per 100k	0.16	0.15	-6.25%

Race and Ethnicity of people with the last name Janosko

As for the ethnic identity associated with the Janosko surname, census data reveals a predominantly White population. As of 2000, 97.94% of those with this surname identified as White, a figure that slightly decreased to 96.30% by 2010. Another interesting change is seen among individuals who identify with two or more races. This group increased by 20.87%, moving from 1.15% in 2000 to 1.39% in 2010. However, there were no recorded occurrences of this surname among those identifying as Asian/Pacific Islander, Hispanic, Black, or American Indian and Alaskan Native in either census year. This information, based on the Decennial U.S. Census, gives a snapshot of the ethnic diversity associated with the Janosko surname over a decade.

	2000	2010	Change
White	97.94%	96.3%	-1.67%
Two or More Races	1.15%	1.39%	20.87%
Asian/Pacific Islander	0%	0%	0%
Hispanic	0%	0%	0%
Black	0%	0%	0%
American Indian and Alaskan Native	0%	0%	0%