The 2006-S North Dakota State Quarter is worth anywhere from $1.50 in circulated condition to $10 or more in pristine proof grades, with some top-certified examples fetching even higher prices among collectors. If you’ve come across one of these coins in a collection or change jar, you’re in the right place to find out exactly what it might be worth.
What Makes the 2006-S North Dakota Quarter Special
The 2006-S North Dakota State Quarter was struck at the San Francisco Mint, which is what that “S” mintmark means. Unlike the Philadelphia and Denver coins that were made for everyday pocket change, the San Francisco issues were produced specifically as proof coins — meaning they were made with special polished dies and planchets to give them a mirror-like finish.
North Dakota was the 39th state to be honored in the U.S. Mint’s 50 State Quarters Program, and its reverse design features two bison grazing on a plain with the badlands in the background. It’s a striking design that reflects the wide-open landscape the state is famous for.
Because these were made for collectors and not for circulation, most 2006-S quarters you’ll find are still in excellent condition. That said, not all proof quarters are created equal, and the grade — or condition — of the coin plays a big role in determining its value.
If you’re trying to identify exactly what coin you have, a free coin identifier app can help you confirm the mintmark, design details, and grade range before you try to sell or trade it.
2006-S North Dakota Quarter Value by Grade
Here’s a quick look at typical market values for the 2006-S North Dakota State Quarter based on condition:
| Grade | Description | Estimated Value |
|---|---|---|
| PR-65 | Standard Proof | $2 – $4 |
| PR-67 | Gem Proof | $4 – $7 |
| PR-69 | Near Perfect Proof | $8 – $12 |
| PR-70 | Perfect Proof (DCAM) | $20 – $50+ |
| Silver Proof PR-69 | 90% Silver Version | $12 – $20 |
Keep in mind these are general market estimates. Actual sale prices can vary depending on whether the coin is certified by PCGS or NGC, and whether it carries a Deep Cameo (DCAM) designation.
Silver vs. Clad: Does Your 2006-S Quarter Contain Silver?
This is one of the most common questions people ask — and it’s a great one. The U.S. Mint produced two types of proof quarters in 2006. The standard version is clad, meaning it has a copper core with nickel-clad outer layers. But there was also a Silver Proof version made from 90% silver, which is worth more both for its silver content and collector appeal.
How do you tell them apart? The easiest way is to check if the coin came in a special Silver Proof Set. Silver proof quarters typically have a slightly different luster and weight (about 6.25 grams vs. 5.67 grams for clad). You can also use CoinHix to identify and distinguish silver from clad versions quickly.
If your coin turns out to be the silver variety, it’s worth checking current State Quarter pricing data to see how similar proof silver coins are trading in today’s market.
How to Know If Your 2006-S North Dakota Quarter Is Worth More
Most 2006-S quarters are worth a modest amount, but a few factors can push the value significantly higher. First, professional certification matters a lot. A coin graded PR-70 DCAM by PCGS or NGC can sell for many times what an ungraded example brings.
Second, look for any errors. While rare, some State Quarters were produced with die errors, doubling, or off-center strikes that make them much more valuable to error coin collectors.
Third, the coin’s overall eye appeal — how clean, sharp, and attractive the cameo contrast is between the frosted design and the mirror fields — plays a big role in collector interest.
For the most up-to-date figures, you can check detailed 2006 quarter value information that breaks down prices across all mintmarks and conditions. And if you want to scan and grade your coin on the spot, CoinHix is a popular tool collectors use to get fast, reliable estimates without any guesswork.
Should You Keep or Sell the 2006-S North Dakota Quarter?
For most people, a 2006-S North Dakota State Quarter isn’t going to be a life-changing find — but it can still be a satisfying one. If you have a complete proof set or a high-grade certified coin, you may have something a collector would pay a premium for.
If it’s just a loose proof coin without a holder, it still holds value above face value and is a fun piece of American numismatic history. The 50 State Quarters program is one of the most collected series in U.S. history, and completing it in proof is a goal many hobbyists work toward.
Whether you decide to sell, trade, or simply hold onto it, knowing what you have puts you in a much better position. Tools like CoinHix make it easier than ever for everyday collectors and curious finders to understand what their coins are really worth.
FAQ
Q: How much is a 2006-S North Dakota Quarter worth today?
A: In standard proof condition (PR-65), it’s typically worth $2–$4. Higher-grade examples like PR-69 or PR-70 can bring $10–$50 or more, especially with a Deep Cameo designation and professional certification.
Q: Is the 2006-S North Dakota Quarter made of silver?
A: It depends on which set it came from. The standard version is clad (copper-nickel), but the U.S. Mint also produced a 90% silver proof version that is worth more. Check for a “Silver Proof Set” label on the original packaging or weigh the coin to determine which version you have.
Q: What does the “S” mintmark on a 2006 North Dakota Quarter mean?
A: The “S” stands for the San Francisco Mint, which produced this coin exclusively as a proof coin for collectors. It was never intended for general circulation, which is why it typically has sharper detail and a mirror-like finish compared to quarters from Philadelphia (P) or Denver (D).
