Are state quarters worth anything?

The 50 State Quarters programme ran from 1999 to 2008, one design per state, five a year. It was the most successful commemorative coin programme ever run: something like 140 million Americans collected them, and about 34 billion coins were struck.

Thirty-four billion is the answer to the value question. Buck prices the programme at $0.25 to $1.00, and the top of that band is for coins that never went into a pocket.

The errors that actually sell

Four are worth knowing, and only four.

• 2004-D Wisconsin extra leaf. An extra leaf on the corn, high or low, from a damaged die. Several hundred dollars in high grade, and the most convincingly faked of the group.
• 2005 Minnesota doubled die. Extra trees in the treeline. Tens of dollars.
• 2005 Kansas "IN GOD WE RUST". A grease-filled die dropped the T. A few tens of dollars, and trivially faked by scraping.
• 1999 Delaware spitting horse. A die crack from the horse's mouth. Small money.

Everything else being sold as a "rare state quarter" on an auction site is an ordinary coin with damage, or an ordinary coin with an optimistic listing. A die crack is not a variety, and post-mint damage is never worth money.

Silver proofs

Silver versions of every design were struck at San Francisco for the annual proof sets, with an S mint mark. Those are 90% silver, they never circulated, and they are worth several dollars each for the metal plus a small premium.

A quarter you found in change is not one of these. Circulating state quarters were struck in Philadelphia and Denver, in copper-nickel clad, without exception.

America the Beautiful, the sequel

From 2010 to 2021 the Mint ran the same idea again with national parks and sites, five a year, 56 designs in total. Same conclusion: $0.25 to $0.75, worth face unless it is an error or an uncirculated roll coin in a high grade.

The one genuine oddity in that series is the five-ounce silver bullion version of each design, three inches across. Those are real silver, they were never spendable, and they sell for the metal.

What is worth doing with a folder of them

Complete it, because the completing is the point, and it costs face value. The 1999 Delaware and the 2008 Hawaii bookend a decade that got a lot of people into coins, and that is the actual return on the programme.

If you want the folder checked for the four errors above, photograph the coins rather than squinting: the Wisconsin leaf and the Minnesota trees are small features that a camera resolves better than an eye does.