1999-P Connecticut Quarter (MS68) Though common in circulation, uncirculated versions with a Mint State grade of 68 or higher can fetch over $1,000 at auctions due to their flawless condition.
2000-P South Carolina Quarter with Mule Error This ultra-rare error features a quarter design struck on a Sacagawea dollar planchet, and has sold for up to $10,000.
2001-P Vermont Quarter (Off-Center Strike) Misstruck or off-center Vermont quarters are highly collectible, with some selling for hundreds to thousands depending on the degree of error and condition.
1999 Georgia Quarter (Experimental Planchet) These were struck on an experimental alloy not used in circulation coins—some examples have gone for $5,000 or more.
2004-D Wisconsin Quarter (Extra Leaf Error) The “high leaf” and “low leaf” errors in the corn stalk design make these quarters extremely sought-after, with values ranging from $500 to over $2,000.
Condition Is Everything Coins in near-perfect condition (MS65 or higher) are exponentially more valuable—grading can be the difference between $1 and $1,000.
Check Your Spare Change Many of these rare and valuable quarters were once in regular circulation—meaning you could still find one in your coin jar or pocket.