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.
These are (together with the letter symbols used as abbreviations): 1  Volts(V) - A measure of the potential difference, emf (electromotive force), or voltage in a circuit. For practical purposes, potential difference, emf and voltage all really mean the same thing. 2  Amps(A) - A measure of the current flowing in a circuit.