Tass is a village and municipality in Bács-Kiskun County, in the Southern Great Plain region of southern Hungary.
It covers an area of and had a population of 2,836 people in 2005.
Population trends between 2013 and 2025:
In the 2022 census, 91.0% of the population identified themselves as Hungarian, 2.7% as Romani, 0.4% as German, and 0.1% each as Bulgarian, Ruthenian, Ukrainian, Slovakian, or Romanian. Additionally, 0.9% answered "other, non-domestic nationality", and 8.9% did not wish to answer.
The religious distribution was as follows: 24.4% as Reformed Christian, 18.8% as Roman Catholic, 2.8% as other Catholic, non-denominational as 14.9% and 37.1% did not wish to answer.