1978 Kennedy Half Dollar Value: What Is Your Coin Worth?

The 1978 Kennedy Half Dollar is worth anywhere from its face value of $0.50 in circulated condition to over $150 or more in high-grade mint state. While most coins found in change today are common, certain rare varieties and high-quality specimens can fetch a surprising premium from coin collectors.

Identifying Your 1978 Kennedy Half Dollar

If you just found a large silver-colored coin in a drawer or a jar of change, you likely have a piece of American history in your hands. To determine the 1978 Kennedy Half Dollar value, you first need to identify where it was made. By 1978, the United States Mint was producing millions of these coins for general circulation. Unlike earlier versions from the 1960s, the 1978 issue is composed of a copper-nickel “clad” sandwich, meaning it does not contain any actual silver.

If you are unsure about the condition or variety of your coin, using a free coin identifier app can save you a lot of time by instantly recognizing the mint mark and strike type. CoinKnow is a great tool for this, as it allows you to snap a photo and get an instant estimation of what you have.

There are three main versions to look for: those with no mint mark (struck in Philadelphia), those with a “D” mint mark (struck in Denver), and those with an “S” mint mark (struck in San Francisco as Proofs). Most “S” mint coins were sold in special sets to collectors and were never intended to be spent at the grocery store.

The Value of 1978 No Mint Mark Half Dollars

The Philadelphia Mint produced over 28 million half dollars in 1978. Because so many were made, those that have been used to buy snacks or coffee are generally only worth their face value of 50 cents. However, if you happen to find one that looks like it just came out of a fresh roll, the price starts to climb. Collectors look for “Mint State” (MS) coins that lack scratches, scuffs, and fingerprints.

For those looking at investment-grade pieces, the 1978 Kennedy Half Dollar auction records show that coins graded MS67 or higher can sell for hundreds of dollars at professional auctions. These are exceptionally rare because the heavy nature of these large coins often leads to “bag marks”—little nicks caused by coins hitting each other during transport at the mint.

Using CoinKnow can help you determine if your coin has enough luster to be considered Mint State. Even a small amount of wear on JFK’s cheek or the eagle’s breast feathers can significantly lower the grade from a collector’s standpoint.

Insights on the 1978-D Denver Mint Mark

The Denver Mint struck even more half dollars than Philadelphia in 1978—over 50 million of them. You can find the “D” mint mark on the obverse (front) of the coin, just above the date. Like its Philly counterpart, the 1978-D Kennedy Half Dollar average price for a circulated coin remains 50 cents.

However, Denver coins from the late 70s are known for having slightly better strikes than Philadelphia coins, though they still suffer from the same “clunky” handling that creates surface marks. If you find a 1978-D that is remarkably clean and shiny, it might be worth having it professionally graded.

Most people use CoinKnow to quickly filter out the damaged coins so they can focus on the ones with real potential. If yours is virtually flawless, it could be a “Condition Rarity.” While an MS64 might bring $5, an MS67 could bring $100. It is a steep jump in value based entirely on how well the coin was preserved over the last 45+ years.

1978-S Proof Half Dollars for Collectors

In 1978, the San Francisco Mint focused on producing “Proof” coins. These were made using special polished dies and planchets (blanks) to create a mirror-like field and frosted details. You can spot these by the “S” mint mark and the distinct “shiny” look that makes them stand out from regular pocket change.

Surprisingly, even though these were made for collectors, they aren’t incredibly expensive today because $3.1$ million of them were produced. Most still reside in their original plastic Mint Sets. If you find one loose in change, it is considered an “Impaired Proof.” In perfect condition (graded PR70), these can be worth $40 or more, but most trade for under $10.

Do 1978 Half Dollars Contain Silver?

This is the most common question asked by everyday Americans who find these coins. Unfortunately, the answer is no. The United States stopped using 90% silver in half dollars after 1964. From 1965 to 1970, they contained 40% silver. By 1971, the mint switched to the copper-nickel “clad” composition that we use today.

If you have a 1978 Kennedy Half Dollar, it is composed of an outer layer of 75% copper and 25% nickel, bonded to a pure copper core. If you look at the edge of the coin, you will see a brown/copper stripe. If the edge is solid silver-white, you might have a rare “wrong planchet” error, but these are extremely rare.

For the general public, it is important to remember that these are “base metal” coins. Their value comes from their condition and rarity among collectors, not from their metal content. If you are looking for silver, you’ll need to look for Kennedy halves dated 1964 or earlier.

Major Errors and Varieties to Look For

While most 1978 half dollars are common, error hunters look for specific mistakes made during the minting process. These errors can turn a 50-cent coin into a hundred-dollar treasure. One common error type is the “Double Die.” Look closely at the lettering in “IN GOD WE TRUST” or the date. If you see clear doubling of the numbers or letters, you might have a valuable variety.

Other errors include “Off-Center Strikes,” where the coin was not properly aligned with the stamps, or “Clad Layers Missing,” where one of the silver-colored sides didn’t stick, exposing the bright red copper underneath. If you find a coin that looks “weird,” don’t spend it!

Errors are best diagnosed by comparing your coin to known examples in a database like CoinKnow. Because errors are so specific, having a visual guide is essential for verifying that your coin isn’t just damaged by a parking lot or a washing machine.

Tips for Selling Your 1978 Half Dollar

If you believe you have a high-value 1978 Kennedy Half Dollar, the next step is knowing how to sell it. For coins worth only 50 cents to $2, your local bank or a standard coin shop is the easiest route, though many shops won’t buy common clad coins.

For coins that are in “Gem” condition (MS65 or higher), consider selling on platforms like eBay or at a local coin show. Be sure to take high-quality, clear photos of both the front and back. If you think the coin is worth more than $100, getting it graded by a service like PCGS or NGC is often necessary to get the highest price.

Remember that “raw” (ungraded) coins always sell for less than “certified” coins. Collectors pay for the guarantee of the grade. Before spending money on grading fees, which can be $30 or more per coin, make sure the math makes sense—don’t spend $30 to grade a coin that is only worth $10!

FAQ

Q: Is there a 1978 silver half dollar?

A: No, the U.S. Mint did not produce any silver Kennedy Half Dollars for circulation or in standard proof sets in 1978. All standard 1978 halves are made of copper and nickel.

Q: Where is the mint mark on a 1978 Kennedy Half Dollar?

A: The mint mark is located on the obverse (front) of the coin, right above the middle of the date “1978.” It will be a “D” for Denver, an “S” for San Francisco, or blank for Philadelphia.

Q: Why is my 1978 half dollar shiny like a mirror?

A: You likely have a Proof coin from San Francisco. These were struck twice with polished dies to create a mirror finish. While they look special, most are worth between $3 and $10.

Q: Can I spend a 1978 half dollar at the store?

A: Yes, they are still legal tender in the United States. However, most vending machines do not accept them due to their large size, so you may need to hand it to a cashier.

Q: What is the most expensive 1978 half dollar ever sold?

A: Top-tier specimens in MS67+ condition have been known to sell for over $1,000 at professional auctions, but these are exceptionally rare “diamond in the rough” finds.