The 1979 quarter value remains a topic of interest among coin collectors, especially those searching through everyday change for hidden treasures. The 1979 Washington Quarter is part of one of the longest-running coin series in the United States. Although most of these quarters are worth only their face value of 25 cents, certain high-grade examples, proof coins, and minting errors can be worth hundreds or even thousands of dollars.
Understanding what makes a 1979 quarter valuable requires examining its mint mark, condition, and possible minting errors. These factors play a major role in determining whether a coin is ordinary or highly desirable to collectors.
Washington Quarter Series and Its Importance to Collectors
The Washington Quarter series began in 1932 and has remained in continuous production ever since. The 1979 quarter follows the same basic design used throughout much of the 20th century, making it familiar to collectors and the general public alike.
The obverse side of the coin features a portrait of George Washington, designed by John Flanagan. The reverse side displays a heraldic eagle with outstretched wings. This classic design remained in use until the State Quarter program began in 1999.
Because millions of quarters were produced in 1979, most examples remain common today. However, certain rare varieties and well-preserved specimens have gained strong collector interest.
Mint Marks and Production Locations Affect Collector Value
In 1979, the United States Mint produced quarters at three different facilities. Each mint location used a unique mint mark to identify where the coin was made.
The mint mark appears on the obverse side of the coin, to the right of Washington’s ponytail.
The three mint varieties include:
- No mint mark – Produced at the Philadelphia Mint
- D mint mark – Produced at the Denver Mint
- S mint mark – Produced at the San Francisco Mint (proof coins only)
Philadelphia and Denver produced coins for circulation in very large numbers, making them widely available today. San Francisco, however, produced proof coins specifically for collectors, which are often more valuable due to their higher quality and limited production.
Physical Specifications of the 1979 Quarter
The 1979 quarter follows standard specifications used for Washington Quarters of that era. These specifications help collectors verify authenticity and identify unusual variations.
| Specification | Details |
|---|---|
| Composition | Copper-nickel clad |
| Diameter | 24.3 mm |
| Weight | 5.67 grams |
| Edge | Reeded |
| Obverse Design | Portrait of George Washington |
| Reverse Design | Eagle with outstretched wings |
| Silver Content | None (standard circulation coins) |
Because these quarters contain no silver, their value depends entirely on condition, rarity, and collector demand.
Condition and Grading Play a Major Role in 1979 Quarter Value
Condition is one of the most important factors affecting the 1979 quarter value. Coins are graded based on their level of wear, surface quality, and overall appearance.
Circulated coins show signs of use, such as worn details and scratches. These coins are typically worth only face value.
Higher-grade coins that show little or no wear can be worth significantly more. These coins are classified as Mint State and are highly sought after by collectors.
Estimated value ranges based on condition include:
| Grade Level | Estimated Value |
|---|---|
| Circulated (Good to Extremely Fine) | $0.25 |
| About Uncirculated (AU) | $1 – $3 |
| Mint State (MS63–MS65) | $5 – $25 |
| High Mint State (MS66–MS67) | $50 – $250+ |
Coins certified by professional grading services often sell for higher prices because their authenticity and condition are verified.
Rare Mint Errors Can Significantly Increase Value
Some of the most valuable 1979 quarters are error coins created during the minting process. These errors occurred due to mechanical issues or mistakes in production.
Common error types include:
- Doubled Die Obverse – Visible doubling in the date or lettering
- Off-Center Strike – Coin design is misaligned
- Clipped Planchet – A portion of the coin is missing
- Broadstrike Error – Coin struck without proper collar alignment
- Wrong Planchet Error – Coin struck on incorrect metal blank
These errors are rare and highly collectible. Depending on the type and condition, error coins can sell for $100 to $1,000 or more.
Collectors often use magnification to identify error coins, as some mistakes may be difficult to see with the naked eye.
Proof Quarters from San Francisco Offer Additional Collector Value
Proof coins are specially made for collectors using polished dies and carefully prepared blanks. These coins have sharp details and mirror-like surfaces.
The San Francisco Mint produced proof quarters in 1979, marked with an “S” mint mark. These coins were never intended for circulation and were sold in official U.S. Mint proof sets.
Typical values for proof quarters include:
- Standard proof coin: $3 – $15
- Deep cameo proof coin in excellent condition: $15 – $25 or more
Proof coins in perfect condition may achieve higher prices depending on demand.
Current Market Value Estimates for 1979 Quarters
The value of a 1979 quarter varies depending on its condition, mint mark, and whether it contains any errors.
Estimated collector values in 2026 include:
| Quarter Type | Estimated Value |
|---|---|
| 1979-P or 1979-D Circulated | $0.25 |
| 1979-P or 1979-D MS65 | $15 – $25 |
| 1979-P or 1979-D MS67 | $150 – $250 |
| 1979-S Proof | $3 – $15 |
| Rare Error Varieties | $100 – $1,000+ |
These values may fluctuate depending on collector demand and auction results.
How to Identify a Valuable 1979 Quarter
Collectors can examine their coins using several simple steps. Checking for the mint mark helps determine origin and potential rarity.
Examining the coin for unusual features or errors can reveal valuable varieties. Coins with strong detail, original luster, and minimal wear are more desirable.
Weighing the coin and comparing it to official specifications can help confirm authenticity. Coins suspected of being rare or valuable may benefit from professional grading and certification.
Conclusion: Most 1979 Quarters Are Common, but Rare Examples Can Be Valuable
The 1979 quarter value is usually limited to face value for circulated coins, but certain rare error coins and high-grade specimens can be worth much more. Mint marks, condition, and production errors all play important roles in determining collector value.
While most 1979 quarters remain common, collectors actively seek well-preserved examples and rare error varieties. Careful inspection and proper evaluation can help identify coins with hidden value.
Understanding these factors allows collectors and enthusiasts to recognize the true worth of this classic Washington Quarter.