1966 Quarter Value

Quarters dated 1966 carry no mint mark, no matter which mint made them. The Mint struck 821,101,500, so the one in your change is worth face value. The price climbs only for coins in near perfect condition. Three graded MS-67 sold for $60, $105 and $168. One graded MS-67+ brought $504 in 2024, and one graded MS-68+ sold for $20,400 at auction in 2023.

Collectors could not buy proof sets from 1965 through 1967. The Mint sold Special Mint Sets instead, with one coin of each denomination struck at San Francisco. It made 2,261,583 of the 1966 sets. No dated auction sale of a single 1966 Special Mint Set quarter could be confirmed, so this page gives no price for one.

The error worth real money is a 1966 quarter struck on a silver blank. The Coinage Act of 1965 took the silver out of the quarter, but the Mint kept striking silver quarters dated 1964 until 1966. Quarters dated 1966 were first struck on August 1, 1966. A few leftover silver blanks ended up in the presses by mistake.

These coins are very rare, and each one needs a grading service to confirm it. One graded AU-53 sold for $41,480 at auction in 2026.

Quarters struck on the wrong base metal blank sell for much less. Five struck on nickel blanks sold for $126.50 to $504. Two struck on dime blanks brought $188 and $720, and one struck on a scrap of clad metal brought $216.

Smaller mistakes sell for less. A broadstruck coin was struck without the ring that holds it in place, so it spread out wide with a plain edge. Two of these, also on clipped blanks, sold for $85 and $125. A coin with a major die break sold for $85 in 2024.

• Look at the edge. A normal 1966 quarter shows a thin copper stripe between two silver colored layers. A coin struck on a silver blank is silver all the way through, with no copper stripe.
• Weigh it on a kitchen scale that reads to two decimal places. A normal coin weighs about 5.67 grams. A silver one weighs about 6.25 grams.
• Set it next to another quarter. A coin that is smaller, thinner or missing part of its lettering may be struck on the wrong blank.
• If any test points to an error, do not clean the coin. Send it to a grading service before you try to sell it.

If you see the copper stripe and the coin looks like any other quarter, you have a regular 1966 quarter.

For regular coins, only the very top grades pay. Graded MS-67 coins sold for $60 to $168. A small step up made a big difference: one graded MS-67+ brought $504, and one graded MS-68+ brought $20,400.

For errors, the metal counts most. The coin on a silver blank sold for $41,480, far more than any other 1966 error here. Among the nickel blank coins, condition mattered too. Two graded AU-58 sold for $126.50 and $192, and two graded MS-65 brought $312 and $504.

Every price on this page went to a coin that a grading service had checked and graded. If you think you have an error or a flawless coin, have it graded before you sell it.

A quarter dated 1964 or earlier is 90% silver and weighs 6.25 grams, so it is worth its silver even when worn. Quarters dated 1965 and later are copper and nickel. When you sort a jar of change, pull out the quarters dated 1964 and earlier first, then weigh the 1966 coins. See the Washington silver quarter values for those older dates, and the 1965 quarter value for the year before.