The State Quarters Value Guide 2026 contains everything a collector or investor needs to accurately value this iconic modern series. The 50 State Quarters Program created commemorative clad coins honoring each U.S. state, making it one of the most collected modern series in American numismatics.
These quarters are still highly valuable today, with some high-grade and error-prone examples commanding impressive premiums. This series appeals to both new and experienced collectors. Understanding current values ​​helps buyers make informed decisions in today’s active market.
Coin Specifications
Each State Quarter measures 24.3 millimeters in diameter and weighs 5.67 grams. The coins feature a clad composition layered over a copper core, with a portrait of George Washington on the obverse and a distinctive state-themed design on the reverse. A total of 50 different reverse designs were issued, one for each participating state, making the complete set a satisfying and achievable collection goal for enthusiasts of all levels.
Edge reading is standard across all issues. The sharpness of the design varies slightly by mint and production year, affecting grade and collector value.
Metal Composition
State Quarters are produced in a clad composition, with outer layers of 75% copper and 25% nickel bonded to a pure copper core. This sandwich construction gives the coins their distinctive silver-like appearance. Proof versions issued for collectors were produced in 90% silver, creating a distinct and more valuable tier within the series, commanding a substantial premium over the standard clad business strike.
Silver Proof State Quarters are particularly popular with investors. Their precious metal content adds an intrinsic value floor that standard clad examples lack.
Rarity and Demand
In the State Quarters series, rarity is mostly defined by mint errors, low mintage dates, and high-grade survivors. The 1999-P Delaware Quarter commands one of the strongest collector premiums among the early issues. Error coins such as doubled dies, off-center strikes, and broadstrikes are among the most sought-after rare coins, with some fetching between $100 and $1,500 depending on the error type and severity.
Collector demand for complete Mint-State sets remains consistent. Registry set competitions are generating strong interest in coins graded MS-67 and above by PCGS or NGC.
Minting Details
State Quarters were minted for circulation at the Philadelphia and Denver Mints, with collector-grade Proof and Silver Proof versions struck in San Francisco each year. Philadelphia coins have no mintmark, while Denver issues have a D and San Francisco pieces have an S. Strike quality in Philadelphia and Denver varied from year to year, meaning some issues display less detail than others, directly impacting grade potential and collector preference.
San Francisco Proof strikes consistently display superior detail and finish. These examples represent the best production quality in the entire series.
Condition and Grading
State Quarters are graded on the standard Sheldon scale, with circulated coins grading from G-4 to AU-58 commanding reasonable prices. Mint-State coins become particularly collectible starting at MS-63. The most sought-after Business Strike coins are graded MS-65 to MS-67, where population figures decline rapidly and collector competition increases significantly.
Proof coins graded PR-69 Deep Cameo and PR-70 Deep Cameo represent the premium tier. These top-grade silver proof coins consistently attract strong bids from both collectors and investors seeking high-quality modern coins.
Market Value
The face value of circulated state quarters in average condition is generally around $0.50. Mint-state coins graded MS-65 typically trade between $5 and $25 per coin, depending on the specific state issue. Coins graded MS-67 can reach $50 to $200, while rare MS-68 coins from certain states have traded between $300 and $750.
Silver proof sets containing all 50 quarters in their original packaging fetch between $80 and $150. Individual silver proof coins graded PR-70 Deep Cameo can fetch between $30 and $100 per piece for popular state issues.
Investment Potential
State Quarters offer a tiered investment opportunity suitable for collectors of varying budget levels. High-grade standard-clad coins offer an affordable entry point, while Silver Proof and Certified Error coins offer greater long-term value. Error coins, in particular, have seen a steady increase in value, driven by a dedicated collector base willing to pay a premium for large and well-documented errors.
Complete Certified Mint-State sets in MS-66 or better are still rare. Collecting such sets today allows collectors to keep up with the growing demand as this series becomes a recognized modern classic.
Conclusion
The State Quarters Value Guide 2026 confirms that this beloved modern series holds true numismatic and investment potential far beyond its face value. With clad business strikes, 90% silver proofs, and a wide range of collectible errors, this series offers good opportunities for many collecting budgets.
Select high-grade and error coins regularly trade between $100 and $1,500. Whether building a complete set or targeting top-population certified coins, the State Quarters series remains one of the most profitable and accessible pursuits in modern American numismatics.
