By Blake Alma
1966 Washington Quarter Value Guide
The 1966 Washington Quarter is a copper-nickel clad U.S. quarter produced during the early years of non-silver coinage. Like 1965, its value is based on condition, strike quality, and errors rather than metal content.
Quick Facts
- Year: 1966
- Denomination: Quarter Dollar
- Series: Washington Quarter
- Composition: Copper-Nickel Clad (Outer layers: 75% copper, 25% nickel; Core: pure copper)
- Weight: 5.67 grams
- Diameter: 24.3 mm
- Edge: Reeded (copper visible on edge)
- Designer: John Flanagan
Mint Marks
The 1966 Washington Quarter was struck under the same no–mint mark policy as 1965:
- Philadelphia Mint (No mint mark)
- Denver Mint (No mint mark)
⚠️ Important: No mint marks appear on any 1966 quarters, regardless of mint of origin.
1966 Washington Quarter Value
Because the 1966 quarter contains no silver, most examples are valued based on condition.
- Circulated (Good–Fine): Face value ($0.25)
- Extremely Fine: $0.50 – $1
- About Uncirculated: $1 – $2
- Mint State (MS-60+): $3 – $25+
High-grade coins with full luster and minimal contact marks bring the strongest premiums.
Clad Composition and Melt Value
The 1966 Washington Quarter contains no precious metal. Its melt value is minimal, so collectors focus on grade, strike quality, and errors rather than metal prices.
What Impacts Value Most
- Condition / Grade: The primary value driver
- Strike Quality: Sharper strikes increase desirability
- Surface Preservation: Bag marks and scratches reduce value
- Originality: Uncleaned, original coins are preferred
Common Errors and What They’re Worth
The 1966 quarter is known for collectible errors due to high production volumes.
- Off-center strikes
- Broadstrikes
- Clipped planchets
- Struck-through grease or debris
- Wrong planchet errors (rare and valuable)
Major errors can sell for hundreds to thousands of dollars depending on severity and condition.
How to Identify a 1966 Washington Quarter
- Confirm the date (1966) on the obverse
- Check the edge for a visible copper stripe
- Note the absence of a mint mark
- Inspect luster and wear on Washington’s cheek and jawline
Is the 1966 Washington Quarter Valuable?
Most circulated 1966 Washington Quarters are worth face value, but Mint State examples and major error coins can be worth considerably more. Demand is strongest for high-grade, well-struck coins.