Explore the Family Name Janco

The meaning of Janco

1. Slovak (mainly Jančo); Czech (Jančo): from a derivative of the personal name Jan. 2. Perhaps also an Americanized form of Hungarian Jancsó (a derivative of the personal name János; see Janos) and of Hungarian Jankó, Slovenian, Croatian, Polish, Slovak, and Czech Janko.

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

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

Based on the Decennial U.S. Census data, the surname Janco has seen a decrease in popularity between 2000 and 2010. In 2000, it was ranked as the 45,909th most popular surname, but by 2010, it had dropped to the 49,268th position, marking a decline of about 7.32%. Similarly, the count of people with this surname also reduced from 438 in 2000 to 427 in 2010, indicating a drop of around 2.51%. Consequently, the proportion of individuals named Janco per 100,000 people fell by 12.5% over the same period.

20002010Change
Rank#45,909#49,268-7.32%
Count438427-2.51%
Proportion per 100k0.160.14-12.5%

Race and Ethnicity of people with the last name Janco

When examining the ethnic identity connected to the surname Janco, the Decennial U.S. Census data shows that it is predominantly associated with White ethnicity, making up 95.08% in 2010, a slight drop from 95.43% in 2000. The second most significant group is the Asian/Pacific Islander ethnicity, which saw a small increase from 1.83% in 2000 to 1.87% in 2010. The Hispanic representation also grew by 16.87%, although it still only accounted for 1.87% of the total in 2010. Notably, the data reports an emergence of individuals identifying with two or more races, amounting to 1.17% in 2010, where none was reported in 2000. There were no changes in counts of Black, and American Indian and Alaskan Native ethnicities during this period.

20002010Change
White95.43%95.08%-0.37%
Asian/Pacific Islander1.83%1.87%2.19%
Hispanic1.6%1.87%16.87%
Two or More Races0%1.17%0%
Black0%0%0%
American Indian and Alaskan Native0%0%0%