I can see my immediate neighbors, but not beyond. About 4-5 houses. 178 households sure is a lot.
From the names, it seems to include home WiFi, guest WiFi, car WiFi, personal hotspots, and some device hotspots (e.g. Roku, PS4, printers). Add in some one-story houses around me, and my 2nd-floor access points can “see” a good range.