Some cities have very strange official city limits, such that it might seem and look in the real world like you’re standing in a city, but according to the city limits, you’re not technically in the area recognized as the city. Our maps are for the most part based on official city limits, so some parcels that seem like they should be in a given city might not be.
It is also possible that some small towns are not recognized as “cities” for game purposes, meaning they do not have a mayor or a badge.
We update our maps every 1-2 years and seek to improve them every time.