Outlined below is a zip code list for Portland. Select a zip code you are interested in to find zip code data on demographics, family, housing, education, transportation, and real estate. See the Portland Zip Code Map.
For other uses, see Volt (disambiguation). The volt (symbol: V) is the derived unit for electric potential, electric potential difference (voltage), and electromotive force.
The uppercase letter Ï is used as a symbol: 1  In chemistry: For oxygen-18, a natural, stable isotope of oxygen. 2  In physics: For ohm â SI unit of electrical resistance; formerly also used upside down (â§) to represent mho, the old name for the inverse of an ohm (now siemens with symbol S) used for electrical conductance.