Languages spoken in Pennsylvania

Of 12,340,793 residents of Pennsylvania aged 5 and over, 1,529,209 (12.4%) speak a language other than English at home, and 606,806 (4.9%) speak English less than "very well".

The most common non-English language is Spanish with 686,810 speakers, followed by Chinese (incl. Mandarin, Cantonese) (96,828).

Limited-English-proficiency counts are the best public proxy for local demand for interpreters and document translation in healthcare, courts, schools and social services.