The short version
562 of 668 records have no map point.
The open data portal gives most records a map point, a spot on the map where the problem is. That is how STLCA knows which district a record belongs to. 562 of these 668 records have no map point, and 372 have no street address either. Without a place, a record cannot be counted in any district. The other 106 have a map point that falls outside the current district lines.
Most of these records are recent: 538 of the 668 were opened in 2018 or later. Most are complaints (545), and 497 of those complaints have no last inspection date.
These records are still part of the citywide totals. They are just not on any district page.