Žirnenka (formerly Russian: Жернянка) is a village in Kėdainiai district municipality, in Kaunas County, in central Lithuania. According to the 2011 census, the village was uninhabited. It is located 1.5 km from Sirutiškis, on the left bank of the Kruostas river.

Historical population

Year Pop. ±% p.a. 1902 41 —     1923 15 −4.68% 1959 17 +0.35% 1970 11 −3.88%	Year Pop. ±% p.a. 1979 8 −3.48% 1989 1 −18.77% 2001 0 −100.00% 2011 0 0.00%
Source: 1902, 1923, 1959 & 1970, 1979, 1989, 2001, 2011