Swamp Thing #20 (1975) — Comic Book Value
Swamp ThingWhat Swamp Thing #20 (1975) is worth — ungraded and CGC graded (6.0, 8.0).
Swamp Thing #20 (1975) value — Ungraded $5 · Grade 6.0 $19 · Grade 8.0 $33. Prices updated August 2026.
Series · Swamp Thing
Live on eBay now
Value by grade
$5
Ungraded
3.8×
$19
Grade 6.0
6.6×
$33
Grade 8.0
Real sold prices per grade — the Grade 8.0 premium on this card is 6.6× raw.
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Item details
- Series
- Swamp Thing
Swamp Thing #20 (1975) comic value
An ungraded copy of Swamp Thing #20 (1975) averages around $5. A CGC 6.0 runs about $19, and a CGC 8.0 commands $33.
What drives the price
Grade is everything in comics — spine ticks, page color, and restoration decide the number, and the jump from raw to high grade can be 10×+. Key issues (first appearances, origins, deaths) carry the biggest premiums, and early printings beat reprints.
Price guide
Sold values by grade vs. what sellers ask today
| Condition | Value | Based on |
|---|---|---|
| Ungraded | $5 | eBay sold comps |
| Grade 6.0 | $19 | eBay sold comps |
| Grade 8.0 | $33 | eBay sold comps |
Frequently asked questions
- What is the price for an ungraded copy of Swamp Thing #20?
- The ungraded copy of Swamp Thing #20 is available for purchase.
- How much is a Grade 8.0 copy of Swamp Thing #20?
- A Grade 8.0 copy of Swamp Thing #20 is currently priced at $44.
- Is the Grade 6.0 version of Swamp Thing #20 a good deal?
- Yes, the Grade 6.0 version is listed for $25, offering a solid entry point into this series.