21 Jump Street filmed at Riverdale High School, Jefferson. The high school where the younger versions of Schmidt and Jenko realize they won't attend prom.
Probable Named in published production coverage; the coordinate is the place itself, checked against a gazetteer.
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Venture keeps every scene location on one map, sorted by how far you'd have to walk. Open it in Jefferson and it tells you what was shot around you, how to get there, and whether you can actually go in.
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