What Duolingo score do you need for Loyola University Chicago?

The undergraduate page says the application may require official TOEFL, IELTS, PTE or Duolingo scores. None of the pages read states a validity period or a separate DET level for assistantships, and none gives Duolingo sending instructions, so follow the instructions in your application portal.

On the same pages, IELTS is 6.5 for undergraduates and 6 for the MS in Data Science.

Loyola's ICAP is open to undergraduates in all majors and to all graduate and professional programmes except those in the Stritch School of Medicine. You take English as a second language coursework with tutoring and advising, and completing the English Language Learning Program means no new test score is needed. The ICAP page describes eligibility in terms of TOEFL or IELTS scores and sets no DET band.

Requirements vary by programme and change between admissions cycles. The score that binds you is the one on your Loyola programme page and in your offer letter, so check it there before you book a test.