Dubach is a town in Lincoln Parish, Louisiana, United States. The population was 800 at the 2000 census.. Dubach High School, located centrally in the town, is noted for fielding good athletic teams in basketball and often defeats teams from much larger towns and cities. Dubach apartments for rent comparison page shows most up to date rent information on Dubach apartments and houses. Rent information is obtained from multiple rental sources but we cannot guarantee their accuracy.