Vanguard would probably have a PDF document online.
But you'd probably have to dig around to find it, or call Vanguard to get one of their agents to direct you to it.
I spent a good 15 minutes digging and trying to find my Fidelity exempt-funds state breakdown. Now that I have it bookmarked, theirs looks like this:
https://www.fidelity.com/bin-public/060_www_fidelity_com/documents/taxes/2019-tei-by-year.pdf
____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*
