Why do Minnesotans have odd accents?

Answer 1

And why do Minnesotans think you have an odd accent? Possibly because there is a significant Scandinavian ancestry in the area only a few generations removed from the "old country' and the speech patterns have not been diluted by as much exposure to other cultures.

Answer 2

Minnesotans are often said to have a distinct accent known as "Minnesota Nice." This accent is characterized by features such as elongated vowel sounds, nasal pronunciation, and the use of specific Minnesota dialectal words or phrases. It likely developed due to a combination of linguistic influences from Scandinavian, German, and other European immigrant populations in the region, as well as geographical isolation and cultural factors.