Colorado State Quarter Value
2006 · 25¢ · 91.67% copper, 8.33% nickel (clad); 90% silver (proof)
Value by Grade
| Grade | Est. Value |
|---|---|
| Poor (P-1) | $0.25 |
| Good (G-4) | $0.25 |
| Fine (F-12) | $0.25 |
| Uncirculated (MS-63) | $1.00 |
| Gem (MS-65) | $3.00 |
| Perfect (MS-70) | $15.00 |
Key Dates & Rare Varieties
| Date/Variety | Why It's Special | Value Range |
|---|---|---|
| 2006-S | Silver proof issue | $5–$8 |
| 2006-P | MS-67+ grades are desirable | $8–$12 |
| 2006-D | High-grade uncirculated specimens | $8–$12 |
Coin Specifications
- Designer
- Norman E. Nemeth
- Years
- 2006
- Denomination
- 25¢
- Composition
- 91.67% copper, 8.33% nickel (clad); 90% silver (proof)
- Diameter
- 24.3 mm
- Weight
- 5.67 g
Quick Value
Where to Buy/Sell
Colorado State Quarter: History & Background
The Colorado quarter features the sweeping Rocky Mountain landscape with Longs Peak prominently displayed, evergreen trees in the foreground, and a banner reading 'Colorful Colorado.' Longs Peak, standing at 14,259 feet, is one of Colorado's 54 'fourteeners' and a centerpiece of Rocky Mountain National Park. The design captures the majestic alpine scenery that defines the state.
How to Grade a Colorado State Quarter
Accurate grading is the single most important factor in determining a coin's value. A difference of just a few grade points can mean 10× or more in value. Examine the highest points of the design first — these are where wear appears earliest. For the finest grades, luster, strike quality, and surface preservation all matter. Professional grading by PCGS or NGC adds certainty and typically increases resale value. Read our complete grading guide →
What Affects Colorado State Quarter Value?
Condition & Grade
The grade spread for Colorado State Quarters is dramatic: a common-date example jumps from $0.25 in Poor to $1.00 in Uncirculated — a 4× increase. Gem-quality MS-65 specimens can reach $3.00 or more. Even a single grade point difference at the upper end can double a coin's price.
Date & Mintmark
The Colorado State Quarter series has 3 notable key dates. The 2006-S is valued at $5–$8, far above common dates. Mintmark location and variety (such as overdates or repunched marks) can multiply a coin's value significantly.
Precious Metal Content
With a composition of 91.67% copper, 8.33% nickel (clad); 90% silver (proof) and a weight of 5.67g, the Colorado State Quarter carries intrinsic metal value that sets a price floor. When silver prices rise, even heavily worn examples appreciate. The melt value provides downside protection that base-metal coins lack.
Strike Quality & Eye Appeal
Designed by Norman E. Nemeth, the Colorado State Quarter (24.3mm diameter) can exhibit varying strike quality across different mint facilities and years. Coins with full, sharp design details, original luster, and attractive toning trade at premiums of 20–50% above the same technical grade with average eye appeal.
Collector Notes: Colorado State Quarter
The Colorado State Quarter (2006) holds a distinctive place in US numismatics. Designed by Norman E. Nemeth, this 25¢ coin was struck in 91.67% copper, 8.33% nickel (clad); 90% silver (proof) with a diameter of 24.3mm and weight of 5.67 grams. These physical specifications are essential for authentication — any deviation from these measurements is a red flag for counterfeits.
Collectors approaching the Colorado State Quarter series should start by assembling a date-and-mintmark set in a consistent grade. Fine (F-12) offers a good balance of affordability and visual appeal for most dates, with clear design elements still visible. Budget roughly $0.25 per common date in Fine condition, then set aside a larger budget for the 3 key dates in the series.
For registry set collectors pursuing top grades, the Colorado State Quarter in MS-65 or better represents a more significant investment at $3.00+ per coin. Population reports from PCGS and NGC show that the supply of certified high-grade examples is limited, and competition among registry set collectors has driven premiums for condition-census coins.
Before purchasing any Colorado State Quarter valued above $100, we recommend reviewing our 2026 US Coin Values Quick Reference PDF ($2.99) which includes a complete grade-by-grade price breakdown and key date identification guide for this series.
Colorado State Quarter: Frequently Asked Questions
▶How much is a Colorado State Quarter worth today?
A Colorado State Quarter (2006) is worth between $0.25 in Poor condition and $1.00 or more in Uncirculated condition. In the most commonly found Fine grade, expect around $0.25. Gem specimens graded MS-65 can reach $3.00 or higher. Values fluctuate with collector demand and the spot price of silver.
▶What is the most valuable Colorado State Quarter?
The most valuable Colorado State Quarter is the 2006-S — silver proof issue. This date is valued at $5–$8 depending on grade and condition. Always have potentially valuable dates authenticated by PCGS or NGC before selling.
▶How do I grade a Colorado State Quarter?
Grading a Colorado State Quarter starts with examining the highest points of the design, where wear appears first. Look for remaining luster, sharpness of details, and surface marks. The Sheldon scale runs from 1 (Poor) to 70 (Perfect). For this series, the jump from Fine (F-12, worth ~$0.25) to Uncirculated (MS-63, worth ~$1.00) is significant. Professional grading by PCGS or NGC costs $20–$50 per coin and is recommended for coins that appear to be worth $100 or more. Our PDF guide ($2.99) includes a visual grading chart for this series.
▶Where is the best place to sell Colorado State Quarters?
For common-date Colorado State Quarters in circulated grades, local coin shops and eBay are practical options — expect 70–85% of retail value. For key dates or high-grade examples, Heritage Auctions or Stack's Bowers will reach the most serious buyers and typically achieve the strongest prices. PCGS or NGC certification is essential before consigning valuable coins to auction. For a detailed selling strategy, see our selling guide.
▶Are there error varieties of the Colorado State Quarter?
Yes. Known Colorado State Quarter errors include doubled die obverses and reverses, repunched mintmarks, off-center strikes, and die cracks. Some error varieties can be worth multiples of normal strikes. Always examine coins under magnification to check for die doubling, especially on lettering and dates.
▶How can I tell if my Colorado State Quarter is real?
Authentic Colorado State Quarters weigh 5.67 grams and measure 24.3 mm in diameter. Check the weight with a precision scale (digital scales accurate to 0.01g are available for under $20). The coin should be composed of 91.67% copper, 8.33% nickel (clad); 90% silver (proof). Counterfeit coins often fail the weight test, show seams on the edge, or have mushy design details. For valuable dates, always obtain PCGS or NGC authentication — the cost is minimal compared to the risk of buying or selling a counterfeit.
▶What affects the value of a Colorado State Quarter the most?
The four biggest value drivers for Colorado State Quarters are: (1) Grade — the difference between Good and Uncirculated is $0.75 for common dates; (2) Date and mintmark — key dates like 2006-S command large premiums; (3) Silver spot price — sets a floor value for circulated examples; (4) Eye appeal — original surfaces, attractive toning, and strong strikes increase desirability among collectors.
▶How many Colorado State Quarters were made?
The Colorado State Quarter was produced from 2006. Mintage varied widely by year and mint — some dates had millions struck while key dates had far fewer. The scarce 2006-S is especially sought after. Check our full value table above for key dates and their relative scarcity.
▶Should I clean my Colorado State Quarter?
Never clean a Colorado State Quarter or any collectible coin. Cleaning removes the original surface and patina, which collectors prize — a cleaned coin can lose 50% or more of its value compared to an original, naturally toned example. Even coins that look "dirty" often have desirable original toning. If you must remove loose debris, hold the coin by its edges and gently rinse with distilled water. Our coin storage guide has more preservation tips.
▶Is the Colorado State Quarter a good investment?
Colorado State Quarters in key dates and high grades have historically appreciated well. Common dates in circulated grades are affordable entry points and carry intrinsic silver value as a floor. For investment purposes, focus on PCGS/NGC-certified examples in grades of Fine or better, and prioritize key dates with low mintages. Our PDF Quick Reference Guide ($2.99) covers all Colorado State Quarter dates and values to help identify the best opportunities.