Sumneytown, Pennsylvania Statistic: Population, Charts, Map, Steets and More

In the United States, there are two major kinds of ZIP Codes. The first type is called the 5-digit ZIP Code, while the second type is known as the ZIP+4 code. A ZIP+4 code is an extension of a five-digit ZIP code, which is used to find more specific location data. The first two digits indicate the country code, while the last two are the codes for sections of the street or a segment.