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. Zip Code 97201 Population: 14,744.
Unit symbols are printed in roman (upright) type regardless of the type used in the surrounding text. They are printed in lower-case letters unless they are derived from a proper name, in which case the first letter is a capital letter.. BIPM - unit symbols.
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.