the "city merging" thing also happens in the US! particularly with school districts. this is why many gigantor middle/high schools exist; they serve HUGE coverage areas with many cities that are too small/rural to have their own school districts.
The bus from Cars 3 says “You about to feel the wrath of the Lower Belleville County Unified School District!” - and it works because almost all school districts people are familiar with in the USA have names similar to that, with the combinations and crossings of county and city.
