2007-S Idaho State Quarter Value: Is Your Proof Coin Rare?
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The 2007-S Idaho State Quarter is worth anywhere from $1.50 in typical proof condition to over $45 for high-grade silver versions. While most Idaho quarters you find in your pocket are common, the “S” mint mark signifies a special strike intended for collectors rather than daily spending.
| Coin Version | Approximate Value |
|---|---|
| 2007-S Idaho Clad Proof | $1.50 – $5.00 |
| 2007-S Idaho Silver Proof | $10.00 – $45.00 |
| 2007-S Idaho Silver (Deep Cameo PR70) | $50.00+ |
Identifying the 2007-S Idaho State Quarter in Your Pocket
Finding a 2007-S Idaho quarter in circulation is a rare treat because these coins were never officially released for general commerce. If you find one while checking your change, it likely came from a broken-up collector set. To accurately identify your find, you can use a top coin identifier and value app to confirm the details. The “S” mint mark is located on the obverse (the face side) to the right of George Washington’s ponytail.
The Idaho quarter was the 43rd coin released in the 50 State Quarters Program. Its design features the Peregrine Falcon and an outline of the state of Idaho, accompanied by the motto “Esto Perpetua” (Let it be perpetual). Because the San Francisco Mint specifically produced these as “Proofs,” they feature a mirror-like finish and frosted details that make them stand out.
If you are unsure whether your coin is a standard circulation strike or a special proof, CoinKnow can help you distinguish the surface textures. Proof coins have a sharpness that standard quarters lack. Because they were struck twice with polished dies, the details on the falcon’s feathers are incredibly crisp compared to the millions of Idaho quarters minted in Philadelphia or Denver.
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Understanding the Difference Between Clad and Silver Proofs
Not all “S” mint Idaho quarters are made of the same material. In 2007, the San Francisco Mint produced two distinct versions: a copper-nickel clad version and a 90% silver version. Knowing which one you have is crucial for determining the current market value for 2007 quarters. The clad version weight is 5.67 grams, while the silver version is heavier at 6.25 grams.
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The easiest way to tell the difference without a scale is to look at the edge of the coin. If you see a copper stripe running along the side, it is a clad proof. If the edge is solid silver-white, you likely have the more valuable silver variant. Collectors pay a significant premium for the silver 2007-S Idaho State Quarter due to its precious metal content and lower mintage numbers.
| Feature | Clad Proof Details | Silver Proof Details |
|---|---|---|
| Composition | Copper-Nickel Clad | 90% Silver, 10% Copper |
| Weight | 5.67 Grams | 6.25 Grams |
| Visual Edge | Orange/Copper Stripe | Solid Silver Appearance |
How Grading Affects the 2007 Idaho Quarter Value
In the world of numismatics, condition is king. A 2007-S Idaho State Quarter that has been tossed around in a jar of pennies will be worth significantly less than one kept in its original US Mint plastic lens. Professional grading services like PCGS or NGC use a 70-point scale. For proof coins, the highest possible grade is PR70 (or PF70), meaning it is flawless under 5x magnification.
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Most 2007-S quarters found by casual collectors grade between PR67 and PR69. A PR69 Deep Cameo silver Idaho quarter usually sells for around $15 to $25. However, if the coin reaches the perfect PR70 grade, the price can skyrocket. You can track these price swings by checking any comprehensive state quarter price guide that monitors recent auction results.
Using the CoinKnow app, you can compare a photo of your coin to high-resolution images of graded specimens. This helps you manage expectations before spending money on professional grading fees. Remember, a proof coin loses value quickly if it has fingerprints or “hairline” scratches caused by rough cloth cleaning. Never clean your coins if you want to preserve their value.
Mintage Numbers and Rarity of the Idaho S-Mint Quarters
The rarity of a coin is often tied to its mintage—the total number of coins produced. For the 2007 Idaho release, the Philadelphia and Denver mints produced over 500 million coins combined. In contrast, the San Francisco Mint produced a much smaller batch. This scarcity is why even the most basic “S” mint marked quarter is worth more than face value.
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| Mint Location | Mintage Type | Production Volume |
|---|---|---|
| San Francisco (S) | Clad Proof | 2,577,166 |
| San Francisco (S) | Silver Proof | 1,313,481 |
As seen in the table, the Silver Proof is nearly twice as rare as the Clad Proof. Because many of these silver sets were melted down during periods of high silver prices, the surviving population of 2007-S Idaho Silver Quarters might be even lower than official records suggest. This makes them a solid target for collectors looking to complete their state quarter sets.
Potential Errors to Look For in 2007 Quarters
While error coins are rare in modern proof minting, they do exist and can drive prices into the hundreds or thousands of dollars. Error types include “double dies,” where the image appears ghosted or shadowed, or “off-center strikes,” where the coin isn’t perfectly round. For the Idaho quarter, keep a close eye on the Peregrine Falcon’s eye and the letters in “Idaho.”
Modern technology used by the Mint has made errors much less common than in the 1900s, but mistakes still slip through. If you find something that looks odd, CoinKnow allows you to zoom in and compare your coin’s geometry with standard strikes. An authenticated error on a 2007-S proof coin would be a major discovery in the coin community.
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Even without a major error, “toning” can affect value. Toning is a natural chemical reaction on the coin’s surface that creates a rainbow or golden effect. Some collectors will pay more for a “Rainbow Toned” Idaho quarter, provided the colors are vibrant and don’t obscure the original design. This is especially true for the silver proof versions, which oxidize more beautifully than the clad ones.
Where to Sell Your 2007-S Idaho State Quarter
If you’ve identified your coin and are ready to turn it into cash, you have several options. For a quick sale, a local coin shop is your best bet, though they usually offer “wholesale” prices so they can resell at a profit. If you have a high-grade PR70 silver quarter, you might get a better price through an online auction or a specialized coin collectors’ estate sale.
When selling online, high-quality photos are mandatory. Buyers want to see the “S” mint mark clearly and verify the lack of scratches. Be sure to mention if the coin is in its original government packaging (OGP). Coins still in the plastic mint lens usually command higher prices because the lens protects the delicate mirror finish of the proof surface.
FAQ
Q: Why is the “S” mint mark so important?
A: The “S” stands for the San Francisco Mint. This mint currently only produces coins for collectors (Proofs), not for general circulation. Because they are made in smaller quantities and with specialized processes, they are naturally more valuable than the “P” (Philadelphia) or “D” (Denver) quarters you find at the grocery store.
Your Old Coin Could Be Valuable!
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Q: Can I spend a 2007-S Idaho quarter at a store?
A: Yes, it is legal tender and worth 25 cents. However, even the most worn “S” mint quarter is worth at least $1.00 to a collector, so spending it at face value would be a waste of money. The silver versions are worth significantly more due to their metal content.
Q: Does the 2007 Idaho quarter have any famous errors?
A: There are no widely recognized “major” errors for the Idaho quarter like the 2004 Wisconsin “Extra Leaf” quarter. However, minor doubling and strike through errors are always possibilities. Use a magnifying glass to check for any irregularities in the falcon’s wings or state outline.
Q: Is the Idaho quarter made of real silver?
A: Only the specific “Silver Proof” set versions are real silver. The vast majority of Idaho quarters in circulation are made of a copper-nickel alloy. If your coin has a dark copper ring on the side, it is not silver. If the edge is bright white/silver, it is 90% silver.
