Have you ever thought about collecting state quarters? If so, you’re not alone. Since their release, state quarters have become one of the most collected coins in the U.S.—and for good reason. They’re fun, educational, and in some cases, surprisingly valuable.
While most state quarters are worth just 25 cents, certain rare ones—especially those with minting errors or in pristine condition—can fetch serious money. Some have sold for thousands of dollars at auction!
In this guide, we’ll explore the history behind the Statehood Quarter Program and highlight the most valuable state quarters that are worth much more than face value. Whether you’re a seasoned numismatist or just getting started, this list will help you know which coins to look out for.
A Quick Look at the Statehood Quarter Program
The U.S. Mint launched the 50 State Quarters Program in 1999 with the goal of honoring each of the 50 U.S. states while educating the public about history and the minting process.
Running from 1999 to 2008, this historic program issued five new quarters each year, showcasing unique reverse designs representing each state’s culture, landmarks, or achievements. The obverse side of each quarter featured a classic portrait of George Washington.
Quarters were released in the order the states entered the Union, with more than 34 billion coins struck in total. At least 400 million quarters were minted for every state, though some had significantly higher or lower mintages, affecting rarity and collectability.
Why Are Some State Quarters Worth More?
Most state quarters are only worth their face value, especially if they’ve been in circulation. However, coins with low mintage, rare errors, or in near-perfect condition (i.e., “mint state”) can be highly sought after by collectors.
Some states, like Alabama, Wisconsin, and Maine, have quarters that are harder to come by in high grades. Others, like Florida and Michigan, are more common. But when it comes to value, condition and rarity are everything.
Let’s dive into the most valuable state quarters that collectors are clamoring for today.
Top 7 Most Valuable State Quarters (With Real Auction Prices)
1. 1999-P Delaware Experimental Quarter
Estimated Value: Up to $4,888

In 1999, the U.S. Mint experimented with different alloys for the upcoming Sacagawea dollar. A few Delaware quarters—minted in Philadelphia—were accidentally struck using these experimental planchets, making them incredibly rare.
Look for coins with a golden hue and smooth edge (instead of the typical reeded one). One such coin, graded MS66, sold for a stunning $4,888 at auction.
2. 2003-D Maine Quarter (MS68)
Estimated Value: $2,300

The Maine quarter was released on June 2, 2003, by the Denver Mint. While circulated versions are common, uncirculated coins in top condition are rare. Collectors are especially eager to find examples graded MS67 or higher.
A specimen graded MS68 fetched $2,300 in a 2017 auction, showing just how much collectors will pay for a flawless piece.
3. 2000-P South Carolina Quarter (MS69)
Estimated Value: Up to $8,000

South Carolina’s state quarter was the eighth released under the program. While most are worth only face value, coins graded MS69 are exceptionally rare and valuable.
The Professional Coin Grading Service (PCGS) reports fewer than 500 examples graded and certified, with only a handful achieving MS69. One of these top-tier examples sold for a jaw-dropping $8,000.
4. 2004-D Wisconsin Quarter: “Extra Leaf Low” Error
Estimated Value: $6,000

This is one of the most famous mint errors in the state quarter series. The “Extra Leaf Low” variety of the 2004 Wisconsin quarter features an additional husk on the ear of corn—a mistake not found on standard coins.
These error coins are scarce and highly prized. A coin graded MS67 with this error sold for an impressive $6,000 in 2020.
5. 1999-P Connecticut Quarter on Experimental Planchet
Estimated Value: $10,500

As part of the 1999 alloy experiment, some Connecticut quarters were mistakenly struck on planchets intended for the Sacagawea dollar. These coins are heavier, have a gold tint, and feature a smooth edge—making them easy to distinguish from regular quarters.
One of these experimental Connecticut coins, graded MS69, brought in a record-setting $10,500 at auction.
6. 1999-P Delaware Quarter (MS66)
Estimated Value: $4,888

Delaware holds the distinction of being the first state honored in the quarter series—and the first state to join the Union. Its coin was the first issued in the program and has become a collector favorite.
Many collectors saved these coins when they were new, making high-grade versions harder to find. One graded MS66 sold for $4,888.
7. 1999-P Pennsylvania Quarter on Experimental Planchet
Estimated Value: $2,520

Similar to the Connecticut and Delaware errors, a few Pennsylvania quarters were struck on experimental Sacagawea dollar planchets. These rare errors are distinguishable by their color, weight, and smooth edge.
A 1999-P Pennsylvania quarter graded MS67 sold for $2,520—proof that error coins from this early period are extremely collectible.
Final Thoughts: Is It Time to Check Your Spare Change?
Collecting state quarters is more than just a hobby—it’s a treasure hunt. While most coins you’ll find are worth just 25 cents, the right coin in the right condition could be worth thousands.
Keep an eye out for those golden-toned experimental planchets, minting errors, and quarters in near-perfect shape. And if you think you’ve found something special, consider getting your coin professionally graded or appraised.
FAQs
How can I tell if my state quarter is valuable?
Check for minting errors, unusual colors (like a gold hue), or pristine condition (mint state). Coins with low mintage or experimental planchets can also be worth more. Having your coin professionally graded can confirm its value.
What is the rarest state quarter?
The 1999-P Connecticut and Delaware quarters struck on experimental planchets are among the rarest. These coins were accidentally made using the alloy intended for Sacagawea dollars and can be worth thousands.
Where can I sell rare state quarters?
You can sell valuable quarters through reputable coin dealers, online auction sites like Heritage Auctions, or coin grading companies that also offer marketplace services. Always verify the dealer’s credentials before selling.
Are all 50 state quarters valuable?
No, most state quarters are only worth 25 cents in circulated condition. Only specific quarters with errors, low mintage, or in high-grade mint condition have significant value to collectors.
Great way to show valuable coins and the way to explain the things that make them valuable. Great job.
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I never knew that there were Buffalo quarter’s what are they worth?