Under Pennsylvania law, there are four types of incorporated municipalities: cities, boroughs, townships, and, in at most two cases, towns.
The post office uses community names and boundaries that usually do not correspond to the townships, and usually only have the same names as the municipalities for the cities and boroughs.
 The names used by the post office are generally used by residents to describe where they live.
The following cities, boroughs and townships are located in Chester County:
Under Pennsylvania law, there are four types of incorporated municipalities: cities, boroughs, townships, and, in at most two cases, towns. The post office uses community names and boundaries that usually do not correspond to the townships, and usually only have the same names as the municipalities for the cities and boroughs.  The names used by the post office are generally used by residents to describe where they live. The following cities, boroughs and townships are located in Chester County:
Chester County, Pennsylvania