Somsdorf is a municipal subdivision of Freital in Sächsische Schweiz-Osterzgebirge district in Saxony state of Germany. It lies in the west of Freital, between the Rote Weißeritz and the Wilde Weißeritz.
The village was first mentioned in 1350.[1] Since 1 January 1974, Somsdorf is a municipal subdivision of Freital.
| 1834: 653 | 1871: 1.184 | 1890: 1.670 | |
| 1910: 1.160 | 1925: 1.212 | 1939: 1.192 | |
| 1946: 1.344 | 1950: 1.309 | 1964: 1.057 |