ZIP code 75757 is officially located in the state of Texas, primarily serving the city of Mount selman. It falls under the administrative jurisdiction of Smith County. When planning mail delivery, logistics routing, or demographic research, 75757 operates within the Central Time (CT) timezone and supports the 403 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 75757 ZIP Code Tabulation Area is approximately 35,403. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $109,757.