The commune is located in the north-central part of the county, on the left bank of the Mureș River, just east of Reghin, and 36 km (22 mi) north of the county seat, Târgu Mureș. It is traversed east to west by the Gurghiu River, an affluent of the Mureș. It is surrounded to the east by Gurghiu commune, to the west by the city of Reghin, to the south by Beica de Jos commune, and to the north by Ideciu de Jos commune.
As of 2011, Solovăstru had a population of 2,888, of which 85% were Romanians and 10.6% Romani.
