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The 2007-S Idaho State Quarter is worth anywhere from $1 in circulated condition to over $50 in perfect Deep Cameo proof condition. While most quarters you find in pocket change are only worth their face value, the “S” mint mark signifies a special production that can be much more lucrative for casual collectors.
| Coin Type | Estimated Value (Ungraded) | Estimated Value (High Grade) |
|---|---|---|
| 2007-S Idaho Clad Proof | $1.00 – $3.00 | $10.00 – $15.00 |
| 2007-S Idaho Silver Proof | $8.00 – $12.00 | $35.00 – $55.00 |
History and Design of the 2007 Idaho State Quarter
The Idaho State Quarter was released on June 4, 2007, as the 43rd coin in the incredibly popular 50 State Quarters Program. This program, which began in 1999, aimed to celebrate each state’s unique heritage and geography. For everyday Americans, these coins turned pocket change into a scavenger hunt. If you aren’t sure which version you have, using a top coin identifier app can help you distinguish between the common business strikes and the more valuable proof versions.
The reverse of the Idaho quarter features the Peregrine Falcon and an outline of the state. Idaho is known for its rugged wilderness, and the “Gem State” motto is etched into the design. The Peregrine Falcon, once an endangered species, has a significant presence in Idaho’s skies. The design was created by Donna Weaver and sculpted by John Mercanti. While millions of these coins were minted for general circulation in Philadelphia and Denver, the 2007-S versions were produced exclusively at the San Francisco Mint for collectors.
When you use the CoinKnow app to scan your Idaho quarter, you’ll notice that the “S” mint mark is the key factor. Unlike the P and D quarters meant for vending machines and grocery stores, the S-mint coins were struck using special dies and polished planchets (coin blanks). This results in a mirror-like finish that makes the falcon design pop. Understanding these differences is the first step in determining if your find is a common coin or a collector’s item.
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What Makes the “S” Mint Mark Special?
The San Francisco Mint is famous among numismatists for producing “Proof” coins. Unlike the coins you get in change at the gas station, a proof coin is struck twice with higher pressure. This process creates sharp details and a frosted appearance on the raised elements, contrasted against a shiny, mirror-like background. If you have found a 2007-S Idaho quarter in a plastic case or a velvet-lined box, you are looking at a Proof coin.
There are actually two different types of 2007-S Idaho quarters: the Clad version and the Silver version. The Clad version is made of the same copper-nickel composition as standard quarters. The Silver version, however, consists of 90% silver and 10% copper. The silver variant is naturally more valuable because of its precious metal content, regardless of its condition as a collectible.
Your Old Coin Could Be Valuable!
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To quickly check which one you have, look at the edge of the coin. If you see a solid silver stripe with no copper (orange/brown) showing, you likely have the silver version. The CoinKnow app can help you catalog these finds and track their market value over time. Regardless of the metal, the “S” mark is a signal that the coin was never intended to be spent, making it rarer than its counterparts from other mints.
| Mint Mark | Production Type | Mintage Volume |
|---|---|---|
| P (Philadelphia) | Circulating / Business | 294,600,000 |
| D (Denver) | Circulating / Business | 286,800,000 |
| S (San Francisco) | Clad Proof | 2,577,166 |
| S (San Francisco) | Silver Proof | 1,313,481 |
Determining the Value of 2007-S Idaho Clad Proofs
The Clad Proof version of the Idaho quarter is the most common “collectible” variant. With over 2.5 million minted, it isn’t rare in the grand scheme of things, but it is much harder to find than a “P” or “D” quarter. Most of these were sold in “Proof Sets” by the US Mint. If you find one in loose change, it is called an “impaired proof,” and its value drops significantly because the mirror finish gets scratched and dull.
For a clad proof to be worth more than a few dollars, it needs to be in a high-grade slab (graded by a professional service like PCGS or NGC). A grade of PR69 or PR70 represents a nearly perfect coin. You can see how these grades affect the price by checking the current Idaho quarter market data, which provides a snapshot of what real collectors are paying at auction.
Your Old Coin Could Be Valuable!
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In the current market, an ungraded but clean 2007-S Idaho Clad Proof usually sells for $1 to $3. However, if you have one that is professionally graded as a perfect 70, the value can jump to $15 or $25. While these aren’t “retire early” numbers, they are a great way for new hobbyists to start a collection that actually gains value over time.
Is Your 2007-S Idaho Quarter 90% Silver?
The real prize for most casual hunters is the 2007-S Silver Idaho Quarter. Because these are made of 90% silver, they have “melt value” that acts as a floor for their price. Even if the coin is scratched or damaged, it will always be worth its weight in silver. As of the current market, the silver content alone makes these coins worth roughly $5 to $6, but as a collectible, they go for much more.
A 2007-S Silver Proof in its original packaging or a high-grade holder can easily fetch $10 to $15. If the coin achieves a Deep Cameo (DCAM) designation—meaning the contrast between the frosted falcon and the mirrored background is exceptionally sharp—the price can rise further. It is always wise to consult a comprehensive 2007-S value chart to see how silver prices and collector demand are influencing the daily rate.
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Many people find these coins when an old relative passes down a collection or if someone accidentally spends a proof set. If you find a quarter that looks unusually shiny and lacks the copper stripe on the side, don’t put it back in your pocket! That silver content makes it a “keeper” every time.
| Condition / Grade | Clad Value | Silver Value |
|---|---|---|
| Circulated / Impaired | $0.25 – $0.50 | $5.00+ (Melt) |
| Proof-65 (Typical) | $2.00 | $12.00 |
| Proof-69 (Near Perfect) | $5.00 | $18.00 |
| Proof-70 (Flawless) | $25.00 | $55.00 |
Are There Errors on 2007 Idaho Quarters?
Error hunting is one of the most exciting parts of coin collecting. While the San Francisco Mint has very high quality control for proof coins, errors can still happen on the P and D strikes. For the Idaho quarter, collectors often look for “die cracks” or “cuds.” These occur when the metal stamp used to make the coin begins to break, leaving extra blobs of metal on the coin’s surface.
Another popular error is the “Double Die.” This happens when the design is stamped onto the coin’s face twice, resulting in a slight blur or doubling of the letters or the falcon’s feathers. On a 2007-S proof, errors are extremely rare. If you do find a proof coin with a clear manufacturing mistake, its value could skyrocket into the hundreds of dollars because the mint is supposed to catch those before they leave the building.
If you suspect you have an error, use the CoinKnow app to zoom in on the details. Comparing your coin to high-resolution images of known errors is the best way to verify if you have a treasure or just a damaged coin. Remember, “post-mint damage” (like scratches from a washing machine) does not add value; only mistakes made during the actual striking process are worth money.
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How to Care for Your Idaho Quarter
If you have a 2007-S Idaho quarter, you must handle it with care. Proof coins are delicate. The mirror surfaces show fingerprints easily, and the natural oils on your skin can actually corrode the metal over years. Never “clean” a coin with polish or soap, as this creates micro-scratches that professional graders can see instantly. A cleaned coin often loses 50-80% of its collector value.
The best way to store these coins is in a PVC-free plastic flip or a specialized coin capsule. This keeps the air out and prevents the silver versions from tarnishing (turning black or yellow). If you found your coin in a US Mint set, leave it in the original plastic lens! Breaking it out usually does more harm than good unless you are sending it off to be professionally graded.
For everyday Americans, the Idaho quarter is a beautiful piece of history. Whether it’s the 90% silver version or the shiny clad proof, these coins represent a specific moment in American numismatics. Keeping them in good condition ensures that if you ever decide to sell, you’ll get the maximum price for your “Gem State” treasure.
FAQ
Q: How do I know if my Idaho quarter is silver?
A: Check the edge of the coin. A standard clad quarter will have a visible copper-colored stripe. A silver proof quarter will have a solid, bright silver edge. Additionally, the silver version is slightly heavier (6.25 grams) compared to the clad version (5.67 grams).
Your Old Coin Could Be Valuable!
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Q: Is a 2007 Idaho quarter without an “S” mark worth anything?
A: Quarters with a “P” or “D” mint mark were made for general circulation. Unless they are in absolutely “bank-fresh” uncirculated condition or have a major mint error, they are generally only worth their face value of 25 cents.
Q: Where can I sell my 2007-S Idaho State Quarter?
A: You can sell these coins at local coin shops, through online auction sites like eBay, or at coin shows. For higher-value silver proofs or graded PR70 coins, specialized numismatic auctions are often the best place to find serious buyers willing to pay a premium.
Q: Why is the Peregrine Falcon on the Idaho quarter?
A: The Peregrine Falcon was chosen because Idaho plays a vital role in the bird’s recovery. The World Center for Birds of Prey is located in Boise, Idaho, and the state’s vast wilderness provides a perfect habitat for these majestic raptors.