Yes, BOSTON is a Scrabble word!

Letter values in Scrabble US: B 3, O 1, S 1, T 1, O 1, N 1.

Is it a valid word?

BOSTON is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

state capital and largest city of Massachusetts; a major center for banking and financial services

Also: hub of the universe, bean town, capital of massachusetts.

Not playable in Scrabble US: BEANTOWN.