Top 10 Most Valuable State Quarter Coins That Could Be Worth $1000+

For coin collectors and hobbyists, state quarters are more than just spare change—they can be hidden treasures worth thousands of dollars. While most quarters in circulation hold only their face value, rare errors, minting variations, and exceptional conditions can make certain state quarters highly valuable. Here’s a look at the 10 most valuable state quarters and why collectors are willing to pay top dollar for them.

Table of Contents

1. 1999-P Experimental Delaware State Quarter – Sold for $4,888

The Delaware state quarter was the first coin released in the Statehood Quarters program. Some were struck on experimental planchets meant for the Sacagawea dollar, giving them a unique alloy composition. These rare test coins are highly sought after by collectors.

Auction Price: $4,888 (MS66)
Why It’s Valuable: Experimental alloy, historical significance

2. 1999-P Connecticut Experimental Planchet Quarter – Sold for $10,500

Similar to the Delaware quarter, Connecticut quarters struck on Sacagawea dollar planchets feature a gold-like color, increased thickness, and a smooth edge. These rare pieces command incredible prices at auctions.

Auction Price: $10,500 (MS69)
Why It’s Valuable: Rare planchet error, unique appearance

3. 2003-D Maine State Quarter – Sold for $2,300

While Maine quarters are common in circulation, those in near-perfect condition are exceptionally rare. Quarters graded MS68 or higher are worth significantly more due to their pristine state.

Auction Price: $2,300 (MS68)
Why It’s Valuable: Scarcity in top mint condition

4. 2000-P South Carolina State Quarter – Sold for $8,000

The South Carolina quarter is another collector’s favorite, particularly in high grades. A near-perfect MS69 example fetched $8,000 at auction, making it one of the most valuable state quarters ever sold.

Auction Price: $8,000 (MS69)
Why It’s Valuable: Extremely rare in high-grade condition

5. 2004-D Wisconsin Extra Leaf Quarter – Sold for $6,000

One of the most famous minting errors, the Wisconsin quarter features a “Low Leaf” and “High Leaf” error on the corn husk. This variation makes the coin far more valuable than regular issues.

Auction Price: $6,000 (MS67, Low Leaf Error)
Why It’s Valuable: Unique error, high demand among collectors

6. 1999-P Pennsylvania Experimental Planchet Quarter – Valued at $2,520

Similar to other 1999 state quarters, the Pennsylvania quarter was also struck on an experimental alloy. These test coins are rare and highly sought after.

Estimated Value: $2,520 (MS67)
Why It’s Valuable: Experimental minting, historical rarity

7. 2006-D North Dakota State Quarter – Sold for $3,760

While North Dakota quarters are common in everyday circulation, high-grade versions are much rarer. In MS68 condition, they can sell for thousands.

Auction Price: $3,760 (MS68)
Why It’s Valuable: Scarcity in high grades

8. 2004-P Texas State Quarter – Sold for $10,000

The Texas quarter is especially valuable due to a “Grease Strike Through Error,” which causes missing design elements. Even error-free, high-grade Texas quarters can be worth thousands.

Auction Price: $10,000 (MS69, error-free)
Why It’s Valuable: Rare strike-through error, top condition rarity

9. 2008-D New Mexico State Quarter – High-Grade Rarity

Collectors prefer the Denver-minted New Mexico quarters due to their sharper design and superior luster. Coins graded MS67 or higher are especially valuable.

Auction Price: Varies, but high-grade versions sell for thousands
Why It’s Valuable: Rare in top conditions

10. 1999-P Delaware State Quarter – Sold for $4,888

Since it was the first coin in the Statehood Quarters program, collectors are eager to find high-quality versions of the Delaware quarter in mint-state condition.

Auction Price: $4,888 (MS66)
Why It’s Valuable: First state quarter issued, high demand

How to Check If You Have a Valuable State Quarter

If you think you might have a rare or valuable state quarter, follow these steps:

Check for Mint Errors: Look for extra markings, misstrikes, or unusual features.
Look at the Mint Mark: Coins minted in Philadelphia (P), Denver (D), or San Francisco (S) may have different values.
Evaluate the Condition: Coins in MS66 or higher condition are worth significantly more.
Get It Graded: Consider sending your coin to professional grading services like PCGS or NGC for official valuation.

Final Thoughts: Could You Be Holding a Hidden Treasure?

Rare state quarters offer collectors a unique blend of history, artistry, and value. Whether it’s an experimental planchet, a striking error, or a near-perfect mint condition coin, these quarters can be worth thousands—sometimes even tens of thousands—of dollars.

Before you spend your spare change, take a closer look—you might just have a hidden fortune in your pocket!

FAQs

What is the rarest state quarter?
The 1999-P Connecticut Experimental Planchet Quarter is among the rarest, selling for $10,500 at auction.

How do I know if my quarter is valuable?
Look for mint errors, high-grade conditions (MS66+), and experimental features. Getting a professional grading can help confirm its value.

Are error quarters worth collecting?
Absolutely! Coins like the 2004-D Wisconsin Extra Leaf Quarter can be worth thousands due to their unique minting errors.