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.
A sigma is a symbol used in statistics for a standard deviation. A standard deviation is the measure of a spread of a distribution of some quantities. For example, if you have a group of boys and measure their heights, there will be some tall boys and some short boys. There will also be some medium height boys.