Kropilai is a village in Kėdainiai district municipality, in Kaunas County, in central Lithuania. It is located by the river Smilga and regional way Jonava-Šeduva (KK144). According to the 2011 census, the village has a population of 13 people.

Historical population

Year Pop. ±% p.a. 1902 46 —     1923 45 −0.10% 1959 44 −0.06% 1970 44 +0.00%	Year Pop. ±% p.a. 1979 13 −12.67% 1989 6 −7.44% 2001 18 +9.59% 2011 13 −3.20%
Source: 1902, 1923, 1959 & 1970, 1979, 1989, 2001, 2011