Justice League of America #30
dc • 1964
- Series
- Justice League of America
- Issue
- 30
- Publisher
- DC
- Cover date
- Sep 30, 1964
- Story title
- The Most Dangerous Earth of All!
Where to find one
Search for Justice League of America #30 on the marketplaces collectors use.
Listings from external marketplaces. We may earn a commission on qualifying purchases.
Where it came from
Published by DC Comics in September 1964, Justice League of America #30 represents the mid-Silver Age of superhero storytelling. During this period, editor Julius Schwartz and writer Gardner Fox were instrumental in shaping the Justice League as a premier team-up title. This specific issue features the team battling the Crime Syndicate of Earth-Three, a dark, alternate-dimension mirror of the League that introduced readers to iconic villainous counterparts like Ultraman, Owlman, and Superwoman.
The cover and interior art were provided by Mike Sekowsky, who served as the primary artist for the series for many years, alongside inker Bernard Sachs. Sekowsky’s clean, dynamic style was central to the aesthetic of the 1960s JLA, emphasizing the grand scale of team battles. The issue is widely regarded by comic historians as a landmark for its early exploration of the DC multiverse concept, which would become a cornerstone of the publisher's narrative structure for decades to come.
Written by Pi, the helpful collecto.rs AI
Who's collecting this
Real issues collectors on collecto.rs who have this in their public collection.
About Justice League of America #30
Justice League of America #30 is a issue in the Comic Books catalog on collecto.rs. Dc • 1964. Catalog data is sourced from Comic Vine. No public issues collectors track this one yet — adding yours would make you the first on collecto.rs.
How many collectors track Justice League of America #30 on collecto.rs?
Justice League of America #30 doesn't have any public collectors on collecto.rs yet. Sign up to add it and become the first.
Can I track my own copy of Justice League of America #30?
Yes. collecto.rs is free — sign up to log your issue, upload photos, record condition, edition, and acquisition cost, and connect with other comic books collectors. Your collection stays private by default.
Where does the Justice League of America #30 catalog entry come from?
The catalog entry for Justice League of America #30 is sourced from Comic Vine. Catalog-level facts stay consistent across every collector; your own data (condition, edition, acquisition notes) is yours.
Is collecto.rs issues tracking free?
Yes. Tracking your issues is free — no paid tier required to catalog items, upload photos, or share your collection.
Track every issue you own
Free. Fun. Collection photos, notes, organization, value tracking, friends — all in one place.
Sign up free






