2006-S Colorado Silver State Quarter Value Guide What This Coin Is Really Worth
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The 2006-S Colorado Silver State Quarter is worth anywhere from $5 in lightly circulated condition to $25 or more in gem proof grades, with top-tier examples occasionally fetching $50 and beyond. If you’ve come across one of these coins and are wondering whether it’s a keeper, you’re in the right place — let’s break it all down.
What Exactly Is the 2006-S Colorado Silver State Quarter?
Before we dive into numbers, it helps to understand what you’re holding. The 2006-S Colorado State Quarter was struck at the San Francisco Mint — that’s what the “S” mintmark stands for. Unlike the quarters made for everyday circulation in Philadelphia and Denver, the San Francisco Mint produced these coins specifically for collector proof sets.
Here’s the twist that makes this coin especially interesting: some of these proof quarters were struck in 90% silver, while others were made from the standard copper-nickel clad composition. The silver version is the one collectors get excited about. It contains 0.1808 troy ounces of pure silver, which means its value tracks both the coin market and the silver spot price.
If you’re not sure which version you have, using a coin identifier and value app can help you quickly distinguish between the silver and clad versions — and give you a real-time value estimate right from your phone.
How Much Is the 2006-S Colorado Silver Quarter Worth Today?
The value of this coin depends on a few key factors: whether it’s the silver or clad version, the grade it receives, and whether it comes with its original packaging.
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Silver proof quarters from 2006-S tend to hold their value well because they were never released into general circulation. Most examples grade between PR-65 and PR-69. Coins that score a PR-70 — a perfect grade — can be worth significantly more, especially in Deep Cameo (DCAM) designation, which refers to the frosted design against a mirror-like background.
You can explore current 2006 quarter value data across different grades and mint marks to see how the Colorado Silver issue stacks up against its clad counterpart and other State Quarter releases from the same year.
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Here’s a general value breakdown for the 2006-S Colorado Silver Proof Quarter:
| Grade | Designation | Estimated Value |
|---|---|---|
| PR-65 | Cameo | $5 – $8 |
| PR-67 | Deep Cameo | $10 – $18 |
| PR-69 | Deep Cameo | $20 – $30 |
| PR-70 | Deep Cameo | $40 – $80+ |
Note that silver melt value provides a natural price floor for the coin regardless of grade.
Silver vs. Clad — How to Tell the Difference
This is one of the most common questions people ask. The silver and clad 2006-S Colorado quarters look almost identical at first glance. Here are a few ways to tell them apart:
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Check the edge. A clad quarter will show a copper-colored stripe around the rim. A silver quarter will have a completely silver-toned edge with no orange layer.
Check the packaging. Silver proof coins were sold in a separate Silver Proof Set, while clad proofs came in the standard U.S. Mint Proof Set. If you have the original packaging, this is usually the easiest confirmation.
Weigh it. A silver version weighs 6.25 grams, while the clad weighs 5.67 grams. A precise digital scale can help here.
The CoinKnow app is a handy tool for collectors who want to cross-reference coin specifications, mintage numbers, and current market values all in one place — especially useful when you’re not sure which version of a coin you’ve got.
Your Old Coin Could Be Valuable!
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What Affects the Value of a 2006-S Colorado Silver Quarter
Beyond grade and composition, a few other factors influence what someone will actually pay for this coin.
Mintage numbers matter. The U.S. Mint struck approximately 1.5 million silver proof State Quarters in 2006, which is relatively low compared to earlier years in the series. Lower mintage generally supports higher long-term collector value.
Certification counts. A coin graded and encapsulated by PCGS or NGC will typically sell for more than a raw (uncertified) coin of the same quality, because buyers trust the grade.
Market timing plays a role too. When silver prices rise, the base melt value of these coins goes up, which can push prices higher across all grades. Staying informed with tools like CoinKnow helps you track value shifts in real time.
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You can also compare the market prices for 2006 State Quarters in MS grades from Nevada and other states to see how the Colorado issue compares within the same series — useful context if you’re building a complete set.
Is the 2006-S Colorado Silver Quarter Worth Keeping?
For most everyday people who find this coin in an old proof set or a collection, the answer is a clear yes — especially if it’s the silver version in original packaging. Even at the lower end of the value range, you’re holding a coin with real silver content, a defined collector base, and strong aesthetics.
If you’re thinking about selling, set realistic expectations. Worn or damaged proof coins lose significant value. But a clean, unhandled example in its original government packaging is the ideal way to maximize what you can get. Using CoinKnow before listing anything for sale can help you benchmark a fair asking price.
Whether you’re a first-time coin discoverer or an experienced collector filling out your State Quarter set, the 2006-S Colorado Silver Quarter is a coin worth knowing.
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Your Old Coin Could Be Valuable!
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FAQ
Q: How do I know if my 2006-S Colorado quarter is silver or clad?
A: The easiest way is to look at the edge of the coin. A silver quarter has a solid silver-toned edge with no copper stripe. If you see an orange-copper layer in the middle of the edge, you have the clad version. You can also check whether the coin came from a Silver Proof Set, which is labeled as such on the original Mint packaging.
Q: Can I find a 2006-S Colorado Silver Quarter in pocket change?
A: Very unlikely. These coins were made exclusively for collector proof sets and sold directly by the U.S. Mint. They were never released into general circulation, so finding one in your change would be an extremely rare accident — possibly the result of someone spending a coin from a set.
Q: Is it worth getting my 2006-S Colorado Silver Quarter professionally graded?
A: It depends on the coin’s condition. If your coin appears to be in near-perfect condition — deep mirrored fields, strong frost on the design, no hairlines — professional grading by PCGS or NGC could unlock significantly higher sale prices, particularly at the PR-69 or PR-70 level. For coins in lower grades, grading fees may not be worth it compared to the modest value difference.
