ZIP code 12123 is officially located in the state of New york, primarily serving the city of Nassau. It falls under the administrative jurisdiction of Rensselaer County. When planning mail delivery, logistics routing, or demographic research, 12123 operates within the Eastern Time (ET) timezone and supports the 670 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 12123 ZIP Code Tabulation Area is approximately 38,470. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $131,123.