1988-S Washington Quarter Value Guide What It’s Really Worth
Your Old Coin Could Be Valuable!
Identify It & Know Its Real Value — Free Download
The 1988-S Washington Quarter is worth anywhere from $3 in lightly circulated condition to over $10 or more in pristine proof condition, making it a surprisingly interesting find for everyday collectors. If you stumbled across one of these coins and wondered whether it’s worth holding onto, you’re in the right place.
If you want a quick and easy way to identify coins from your collection, a coin identifier and value app can give you instant results right from your phone — no coin dealer visit required.
What Is the 1988-S Washington Quarter?
The 1988-S Washington Quarter is a proof coin struck at the San Francisco Mint. The “S” mintmark stands for San Francisco, and it was never released for general circulation. Instead, it was produced exclusively as part of the United States Mint’s annual proof sets, which were sold directly to collectors.
This means that if you found a 1988-S quarter, it likely came from one of those sets — which is actually a good sign. Proof coins are struck using specially polished dies and planchets, resulting in sharp details and mirror-like fields. The coin features the classic portrait of George Washington on the obverse, designed by John Flanagan, and the American eagle design on the reverse.
Your Old Coin Could Be Valuable!
Identify It & Know Its Real Value — Free Download
Because these coins weren’t made to circulate, most surviving examples are still in excellent condition. That’s one reason they hold a modest but steady collector value.
Your Old Coin Could Be Valuable!
Identify It & Know Its Real Value — Free Download
1988-S Washington Quarter Value by Grade
The value of a 1988-S Washington Quarter depends mostly on its condition and whether it has been certified by a grading service like PCGS or NGC. Proof coins are graded on a scale from PR60 to PR70, with PR70 representing a perfect, flawless coin.
Here’s a general breakdown of what you can expect to pay or receive for this coin:
Your Old Coin Could Be Valuable!
Identify It & Know Its Real Value — Free Download
| Grade | Description | Estimated Value |
|---|---|---|
| PR60 | Proof, noticeable contact marks | $3 – $5 |
| PR65 | Gem Proof, minor blemishes | $5 – $7 |
| PR67 | Superb Gem, nearly perfect | $8 – $12 |
| PR69 | Near perfect surfaces | $12 – $20 |
| PR70 | Perfect Proof | $25 – $50+ |
For the most current market data, you can check out the latest 1988 Washington Quarter price trends from recent auction records to see how this coin has been trading in real time.
Is the 1988-S Quarter Rare?
The short answer is no — not particularly. The San Francisco Mint produced over 3.2 million proof quarters in 1988, so there’s no shortage of them in the market. Because of that high mintage, the 1988-S Washington Quarter is generally considered a common proof coin.
Your Old Coin Could Be Valuable!
Identify It & Know Its Real Value — Free Download
That said, a perfect PR70 example is always harder to find and commands a premium. CoinKnow is a great tool to help you figure out if your coin falls into that elite category. With just a photo, it can scan your coin and give you an estimated grade and value.
Even common proof coins like this one can be worth more than face value if they’re well-preserved and stored properly. If you received a 1988 proof set as a gift or found one in an estate sale, don’t toss it — it’s still a fun and collectible piece of American numismatic history.
How to Tell If You Have the 1988-S Quarter
Identifying the 1988-S Washington Quarter is fairly straightforward. Look at the obverse (front) of the coin, just below Washington’s neck and above the date. You should see a small “S” mintmark. The date “1988” will be visible at the bottom of the obverse.
Proof coins also have a very distinctive look. The background fields will appear deeply mirrored and reflective, almost like a mirror surface, while the raised design elements will be frosted and sharp. If your coin looks like it came from a regular roll of change, it may be a Philadelphia or Denver mint issue instead.
Your Old Coin Could Be Valuable!
Identify It & Know Its Real Value — Free Download
If you’re not sure what you have, using CoinKnow makes the process simple. Snap a photo of both sides and the app identifies the coin within seconds. For a deeper look at the full value breakdown of the 1988 quarter across all mint marks, that resource covers the P, D, and S versions side by side.
Should You Hold On to Your 1988-S Quarter?
If your coin is in great shape and still in its original proof set packaging, it’s worth keeping. Proof sets from the 1980s have a stable collector base and make excellent starter items for anyone building a collection. While the 1988-S Washington Quarter won’t make you rich overnight, it’s a charming piece of American coinage history.
Casual collectors often enjoy assembling full year proof sets, and a well-preserved 1988-S quarter fits right into that pursuit. Using CoinKnow can help you track your growing collection and stay updated on current values without needing to be an expert.
Your Old Coin Could Be Valuable!
Identify It & Know Its Real Value — Free Download
Frequently Asked Questions
Q: How much is a 1988-S Washington Quarter worth today?
A: Most 1988-S proof quarters are worth between $3 and $12, depending on their grade. Perfect PR70 examples can reach $25 to $50 or more when certified by PCGS or NGC.
Q: Can I find a 1988-S quarter in pocket change?
A: Very unlikely. The 1988-S was a proof-only issue made for collector sets, not circulation. If you find one in your change, it was likely removed from a set at some point.
Q: Is it worth getting my 1988-S quarter graded and certified?
A: For most examples, the grading fee may exceed the coin’s market value. However, if your coin appears flawless and mirror-bright, a PR69 or PR70 certification could make it worth the investment.
