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.
Sigma is the eighteenth letter of the ancient Greek alphabet. As an upper case letter (), it is used as a symbol for sums and series. As a lower case letter () it is a prefix used in several contexts to indicate that a term is referred in some way to countable unions.