1. 2004-D Wisconsin State Quarter (Extra Leaf High) – $1,200+
One of the most famous error quarters, the 2004-D Wisconsin “Extra Leaf High” variety features an additional leaf on the corn stalk. This mint error occurred during the die polishing process at the Denver Mint. These quarters can sell for $500 to over $1,200, especially in mint state. Collectors love this one for both its error and mystery.
2. 2004-D Wisconsin State Quarter (Extra Leaf Low) – $800+
Similar to the Extra Leaf High variety, this version has an extra leaf that points downward. Though slightly less valuable, it is still a highly desirable error, often selling for $400 to $800+, depending on condition.
3. 1999-P Delaware Spitting Horse Quarter – $300+
This error features a die crack that appears like a line of spit coming from Caesar Rodney’s horse’s mouth. While not a traditional “error,” it’s popular among collectors. Higher-grade examples can reach $250 to $300 or more.
4. 2000-P South Carolina Off-Center Strike – $500+
Off-center strike errors are always in demand, and South Carolina quarters from 2000-P with 15% or more off-center strikes are quite valuable. Depending on how visible the date and design are, these coins can sell for $300–$500+.
5. 1999-P Connecticut Broadstrike Error – $275+
The Connecticut quarter with a broadstrike error (struck without a collar, making it larger than normal) can fetch a nice premium. In uncirculated condition, these errors sell for $250–$275 or more.
6. 2005 Minnesota Quarter (Extra Tree Variety) – $400+
One of the most intriguing varieties, the Extra Tree Minnesota Quarter features what appears to be an extra tree next to the spruce in the background. There are dozens of minor die varieties, but the most dramatic versions go for $300–$400+ in high grade.
7. 1999 Georgia Quarter Struck on Experimental Planchet – $5,000+
Some 1999 Georgia quarters were accidentally struck on experimental planchets during the early testing phase of the Sacagawea dollar. These quarters have a gold tone and weigh slightly differently. A certified example can sell for $5,000 to $10,000+.
8. 1999-P New Jersey Off-Metal Error (Struck on a Cent Planchet) – $3,500+
This quarter was mistakenly struck on a copper-colored 1-cent planchet, resulting in a smaller, reddish quarter. These rare errors can be worth $2,000–$3,500 or more depending on condition.
9. 2002-P Indiana Quarter Struck on a Dime Planchet – $2,000+
Another spectacular mint error—this coin has the Indiana quarter design but is struck on a dime-sized planchet. Because part of the design is missing and the coin weighs less, it’s a valuable find at over $2,000 in top condition.
10. 2001-P Vermont Quarter Double Die Reverse – $450+
Double die reverses are rare in the state quarter series. The 2001-P Vermont is among the few known, and though subtle, collectors seek it. Higher-grade coins with clear doubling have sold for $400–$500+.
11. 2000-P Maryland Quarter Die Break (Cud Error) – $250+
A dramatic die break, often forming a “cud” (a raised blob) on the rim or edge of the coin, can add value. These cuds on Maryland quarters, especially near the dome, can go for $200–$250+, depending on visibility and condition.
12. 2003-P Maine Quarter Struck on Foreign Planchet – $3,000+
These rare quarters were accidentally struck on foreign coin blanks, resulting in off-color, lightweight coins. A certified example has sold for over $3,000, making it one of the most valuable oddities in the series.
13. 2000-P New Hampshire Quarter Partial Collar Strike – $200+
A partial collar error occurs when the coin isn’t properly seated, creating a “railroad rim.” These errors are collectible and can bring $150 to $250+, especially if they are uncirculated.
FAQs
Q1: Are state quarters with no mint mark valuable?
Not usually. Most no-mint-mark quarters were made in Philadelphia. Value depends on condition, errors, or varieties.
Q2: How can I tell if my state quarter is valuable?
Look for errors like extra leaves, off-metal strikes, or die cracks. Coins in mint condition are more valuable. Having it graded can confirm value.
Q3: What does “MS” mean in coin grading?
MS stands for Mint State, referring to coins that are uncirculated and in perfect or near-perfect condition.
Q4: Where can I sell a valuable state quarter?
Try eBay, coin shows, auction houses like Heritage Auctions, or local coin dealers. Certification increases trust and value.
Conclusion
While most state quarters are worth only 25 cents, these 13 stand out for their rarity, errors, and high demand among collectors. Whether it’s an extra leaf in Wisconsin or a mis-struck New Jersey coin, these unique pieces can bring hundreds—or even thousands—of dollars. If you’re a casual coin hunter or serious collector, keep your eyes peeled. The next valuable quarter could be sitting in your pocket change right now.