ZIP code 99329 is officially located in the state of Washington, primarily serving the city of Dixie. It falls under the administrative jurisdiction of Walla Walla County. When planning mail delivery, logistics routing, or demographic research, 99329 operates within the Pacific Time (PT) timezone and supports the 272 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 99329 ZIP Code Tabulation Area is approximately 38,072. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $133,329.