ZIP code 05403 is officially located in the state of Vermont, primarily serving the city of South burlington. It falls under the administrative jurisdiction of Chittenden County. When planning mail delivery, logistics routing, or demographic research, 05403 operates within the Eastern Time (ET) timezone and supports the 459 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 05403 ZIP Code Tabulation Area is approximately 42,459. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $91,403.