The Kennedy Half Dollar is one of the most collected U.S. coins, introduced in 1964 to honor President John F. Kennedy. While many people assume all Kennedy half dollars contain silver, the reality is that the U.S. Mint gradually reduced and eventually eliminated silver content from these coins over time.

So, which Kennedy half dollars are silver? This historical guide will walk you through the years, silver content, and what makes certain issues more valuable.

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Years Kennedy Half Dollars Contained Silver

The Kennedy Half Dollar has gone through three distinct metal compositions:

1. 90% Silver (1964 Only)
2. 40% Silver (1965–1970)
3. Copper-Nickel Clad (1971–Present, except special issues)

Each period affected the coin’s intrinsic value, making pre-1971 Kennedy half dollars significantly more valuable than modern ones.

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1. 1964 Kennedy Half Dollar – 90% Silver

The first year of issue (1964) is the only year Kennedy half dollars were made of 90% silver for regular circulation.

• Composition: 90% silver, 10% copper
• Silver Content: 0.3617 troy ounces
• Current Melt Value (2025): Approximately $9–$10, based on silver at $25 per ounce
• Why It’s Valuable:
  • First year of issue.
  • Highest silver content of any Kennedy half dollar.
  • Hoarded by the public after Kennedy’s assassination.

Well-preserved or high-grade uncirculated examples can be worth $20–$100+, depending on condition and grading.

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2. 1965–1970 Kennedy Half Dollars – 40% Silver

In 1965, the U.S. Mint reduced the silver content from 90% to 40% due to rising silver prices and a national coin shortage. The 1965–1970 Kennedy half dollars are still collectible and valuable, but their silver content is significantly lower.

• Composition: 40% silver, 60% copper
• Silver Content: 0.1479 troy ounces
• Current Melt Value (2025): Around $4–$5, based on silver at $25 per ounce
• Key Years to Look For:
  • 1970-D Kennedy Half Dollar – Rare because it was only issued in mint sets; worth $30–$100 in most cases.
  • 1966 SMS (Special Mint Set) – Select pieces have a strong cameo contrast and can be worth hundreds.

While these 40% silver Kennedy half dollars were still hoarded, they are more common than the 1964 version, making them slightly less valuable.

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3. 1971–Present Kennedy Half Dollars – No Silver (Except Special Issues)

In 1971, the U.S. Mint completely removed silver from circulating Kennedy half dollars, transitioning to copper-nickel clad coins. These coins are only worth face value (50 cents) unless they are in high-grade uncirculated condition or proof versions.

However, some special silver issues were made after 1971:

• 1976 Bicentennial Kennedy Half Dollar (40% Silver, S-Mint Proofs & Uncirculated)
  • Special collector-only silver coins produced for the U.S. Bicentennial.
  • Only the San Francisco-minted coins (with an "S" mint mark) contained 40% silver.
  • Value: $5–$15 for standard examples, $50–$200+ for high-grade proofs.

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• 1992–2018 Silver Proof Kennedy Half Dollars (90% Silver)
  • In 1992, the U.S. Mint began producing 90% silver proof versions as part of the Silver Proof Set series.
  • These coins are not for circulation and were only sold in special collector sets.
  • Value: $15–$50+, depending on the year and grade.

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• 2021-P Kennedy Half Dollar (99.9% Silver)
  • Released as part of the American Silver Proof Set.
  • Contains 1 troy ounce of .999 fine silver, making it unique from all previous issues.
  • Value: Trades based on silver content and collector demand.

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Quick Reference: Which Kennedy Half Dollars Contain Silver?

1964 (90% Silver) – Most valuable regular-issue Kennedy half dollar.
1965–1970 (40% Silver) – Still valuable, but worth less than the 1964 version.
1971–Present (No Silver) – Regular circulation coins contain no silver (except for special collector versions).
1976 Bicentennial (40% Silver, "S" Mint Mark Only) – Special silver-clad issue for collectors.
1992–2018 Silver Proofs (90% Silver) – Collector-only silver proof sets.
2021-P Silver Kennedy (99.9% Silver) – A unique 1-ounce silver version for collectors.

If your Kennedy half dollar was minted after 1970 and does not have an “S” mint mark from a proof set, it likely contains no silver and is worth face value.

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How to Determine the Value of Your Kennedy Half Dollar

If you own a Kennedy half dollar and want to check its value, follow these steps:

1. Look at the Year & Mint Mark – If it’s 1964 or between 1965-1970, it contains silver.
2. Weigh It – Silver coins are slightly heavier than copper-nickel clad coins. A silver Kennedy half dollar should weigh around 11.34 grams.
3. Check for Special Editions – If it’s a proof coin from 1992 or later, it might be 90% silver.
4. Assess Condition – Uncirculated or high-grade coins can be worth significantly more than melt value.
5. Verify with a Magnet – Silver is not magnetic, while clad coins may have a slight pull due to nickel content.

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Where to Sell Silver Kennedy Half Dollars

If you’re looking to sell your silver Kennedy half dollars, consider:

• Coin Dealers & Bullion Shops – Best for selling silver coins quickly at spot price.
• Online Marketplaces (eBay, Heritage Auctions, GreatCollections) – Ideal for rare or high-grade coins.
• Coin Shows & Collector Groups – Good for networking and negotiating with buyers.
• Precious Metal Buyers – Offer competitive pricing based on silver melt value.

For rare or proof Kennedy half dollars, having them professionally graded (PCGS or NGC) may significantly increase their value.

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Conclusion: What Year Kennedy Half Dollars Are Silver?

Kennedy half dollars minted in 1964 contain 90% silver, making them the most valuable standard issue. Coins minted between 1965 and 1970 contain 40% silver, and after 1970, silver was only used in special collector editions (such as the 1976 Bicentennial, 1992+ Silver Proofs, and the 2021-P Silver Kennedy).

If you own a Kennedy half dollar from before 1971, it’s likely worth more than face value due to its silver content. Checking mint marks, weight, and condition can help determine whether you have a high-value collector’s item or a standard silver melt-value coin.