How to Read a PSA Population Report

A population report tells you how many copies of a card have been graded at each level. Used well, it turns "this looks rare" into a number you can actually price around.

What the pop count is telling you

The "pop" (population) is the count of a specific card that a grading company has slabbed at each grade. If a card shows a population of 40 at PSA 10, that means PSA has graded forty gem-mint copies to date. Two numbers matter most:

• The pop at your grade. Fewer copies at a given grade generally means more scarcity — and often more value — at that grade.
• The pop above your grade. A PSA 9 with very few 10s above it can be relatively strong; a 9 sitting under thousands of 10s is more ordinary.

Gem rate and why it matters

Divide the number of 10s by the total graded and you get a rough "gem rate" — how hard it is to pull a perfect copy of that card. A low gem rate signals a card that's tough to grade well (poor centering from the factory, fragile foil, dark borders), which makes each 10 more special. A high gem rate means 10s are comparatively easy, so the premium over a 9 is usually smaller.

Scarcity at the top grade, not raw print run, is what drives most graded-card premiums.

Using pop data as a buyer or seller

As a buyer, pop data helps you avoid overpaying: a "rare" card with thousands already slabbed at your grade isn't as scarce as the listing implies. As a seller, citing a genuinely low pop in your description is a legitimate way to justify a stronger price — buyers who know the report will respect it. Remember the report only counts graded copies; ungraded cards in collections and sealed product aren't included, so populations grow over time.

Frequently asked questions

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