What is the value of a 1964 US quarter?

Answer 1

1964 is the most common date for silver quarters. Late-date silver quarters (mid-50s through 1964) are generally worth their metal value unless they're in uncirculated condition. In average circulated condition, their value is determined mostly by the silver they contain. The price of silver changes every day, so check a newspaper or financial site for the current price, then multiply by 0.18 for a rough retail value. A dealer will pay half to 2/3 of that amount.

A 1964 Washington Quarter that is in a mint state of BU is worth $10; proof versions are about the same.