ZIP code 29555 is officially located in the state of South carolina, primarily serving the city of Johnsonville. It falls under the administrative jurisdiction of Florence County. When planning mail delivery, logistics routing, or demographic research, 29555 operates within the Eastern Time (ET) timezone and supports the 507 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 29555 ZIP Code Tabulation Area is approximately 21,507. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $75,555.