In Black Diamond 4.72% of the population speaks a non-official language primarily at home. Most households speak Spanish. This accounts for about 66.67% of the Black Diamond non official language speaking population and 3.15% of the total Black Diamond population. People who speak German primarily at home account for 33.33% of the non official language speaking population and 1.57% of the total Black Diamond population.
|Statistic||Percent||% of total population|
|Spanish||66.67 %||3.15 %|
|German||33.33 %||1.57 %|