These data accompany the article, "Attention in Bilingual Children with Developmental Language Disorder", published in the Journal of Speech, Language, and Hearing Research. The data were collected from 175 6- to 8-year old children exposed to only English or both Spanish and English. Data from direct language assessments, parent report instruments (on attention skills, language development, and bilingual language exposure), and computer-based assessments of processing speed, sustained attention, and attentional control.