The 2003-S Maine State Quarter is worth anywhere from $1 to $2 in circulated condition, but proof versions — especially deep cameo strikes — can be worth $5 to $15 or more depending on grade. If you’ve got one sitting in a drawer or old coin collection, you might be pleasantly surprised by what it’s worth.
What Makes the 2003-S Maine Quarter Special
The 2003-S Maine State Quarter was struck at the San Francisco Mint, which is why it carries the “S” mint mark. Unlike quarters from Philadelphia or Denver that were made for everyday circulation, the “S” mint coins were produced specifically as proof coins for collectors.
That distinction matters a lot when it comes to value.
Proof coins are struck with special dies on polished planchets, giving them a mirror-like background and sharp, frosted design details. The Maine quarter features Pemaquid Point Lighthouse — an iconic image that makes it one of the more visually appealing coins in the 50 State Quarters program.
If you’re not sure whether your coin is a proof or a regular strike, try using a coin identifier and value app to help you sort it out quickly. These tools can identify your coin from a photo and give you an instant value estimate right from your phone.
Understanding the 2003-S Maine Quarter Value by Grade
Coin grading is the key to understanding what your quarter is really worth. A proof coin graded PR-65 might be worth $3 to $5, while a perfect PR-70 Deep Cameo (DCAM) could fetch $15 to $30 or even more in the right marketplace.
Here’s a general value table based on condition:
| Grade | Type | Estimated Value |
|---|---|---|
| PR-65 | Proof | $3 – $5 |
| PR-67 | Proof | $5 – $8 |
| PR-69 DCAM | Deep Cameo Proof | $8 – $15 |
| PR-70 DCAM | Deep Cameo Proof | $20 – $35+ |
| Circulated | Regular Use | Face value – $1 |
These are general estimates. Real market prices fluctuate based on buyer demand and recent auction results. You can check up-to-date 2003 quarter value data to see the latest pricing trends before you buy or sell.
How the 2003-S Maine Quarter Compares to Other 2003 State Quarters
The 2003 State Quarters program also included Illinois, Alabama, Missouri, and Arkansas. Each of these was produced in proof at the San Francisco Mint alongside Maine.
In terms of collector interest, the Maine quarter holds its own fairly well. The lighthouse design is distinctive and well-liked. That said, if you’re looking specifically at proof sales data for the related issues, you can browse 2003 Illinois State Quarter price data in mint state to get a sense of how the 2003 series performs across the board.
Most 2003-S proof quarters are modestly valued unless they hit that coveted PR-70 DCAM grade. The coins are not rare — the U.S. Mint sold millions of proof sets that year — but top-graded examples are genuinely hard to find.
How to Check Your 2003-S Maine Quarter Value at Home
You don’t need to drive to a coin shop to get a ballpark idea of what your coin is worth. The easiest starting point is to look at the coin carefully under good light and check for the “S” mint mark on the obverse, just to the right of Washington’s neck ribbon.
If it’s sharp, shiny, and shows clear contrast between the frosted design and mirror-like fields, it’s likely a proof — and worth more than face value.
For a faster answer, CoinHix is a popular app among collectors that gives you access to real-time coin price data across grades and mint marks. It’s especially handy when you want to see what similar coins have sold for at auction.
Whether you’re brand new to coin collecting or just curious about a coin you found, CoinHix makes it easy to look up values without needing any prior expertise.
Where to Sell Your 2003-S Maine State Quarter
If you decide your coin is worth selling, your best options include eBay, coin shows, or a local dealer. For graded coins in PR-69 DCAM or PR-70 DCAM, consider submitting to PCGS or NGC first — certified coins almost always sell for more than raw (ungraded) coins.
For everyday examples in lower proof grades, selling as part of a complete 2003 proof set often brings better returns than selling individual coins.
Always do your research before setting a price. Use CoinHix or similar tools to look at recent sold listings so you know what buyers are actually paying — not just what sellers are asking.
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FAQ
Q: Is the 2003-S Maine State Quarter rare?
A: No, it’s not considered rare. The San Francisco Mint produced millions of proof sets in 2003. However, coins graded PR-70 DCAM are significantly harder to find and command premium prices.
Q: What does the “S” mint mark mean on a 2003 Maine Quarter?
A: The “S” indicates the coin was struck at the San Francisco Mint. These coins were made as proof coins for collectors, not for general circulation, which generally makes them more valuable than standard quarters.
Q: Can I get my 2003-S Maine Quarter professionally graded?
A: Yes. Services like PCGS and NGC can grade and certify your coin. This is most worthwhile if your coin appears to be in exceptional condition — PR-69 or PR-70 — where certification can significantly increase its market value.