Could a non-US citizen vote in the Electoral College?

[I spent the winter writing songs about getting better]

Because it seems the only constitutional requirement for electors is they can not be a member of Congress or "hold an Office of Trust or Profit under the United States" which basically is interpreted to disqualify federal office holders (although it's so vague it probably disqualifies all federal employees, a mail carrier would be ineligible under this), so theoretically does this mean even people ineligible to vote could be electors such as a non-citizen?

Also would a professor or other employer at a federally funded university be eligible? I imagine this has come up before.

[Mister Mets]

Interesting question.

Requirements vary by state.

https://www.nass.org/sites/default/files/surveys/2020-10/summary-electoral-college-laws-Oct20.pdf

In Alaska, non-citizens would be ineligible since electors have to be qualified voters.

In Alabama, they're selected by a political party, so it doesn't seem they're required to be citizens, but it's politically unlikely that the party that wins its electoral votes will pick non-citizens for the electoral college.

California would seem a place where it could happen, and it seems Democratic electors are chosen by candidates for Congress, so it seems politically possible.

[Ferguson97]

I assume that this would be up for each state to decide. Nothing in the Constitution explicitly says they must be a citizen.