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![USA ZIP Code](https://zip.postcodebase.com/files/image/usa_zip.png)
This is the Oregon ZIP code website, which contains 486 ZIP codes, 396 cities, 36 counties, and more than 571,131 ZIP+4 codes. Each 9-digit ZIP code corresponds to one or several Oregon addresses.
Besides, there are also some tools related to ZIP code or address. For example, address verification, full ZIP code search, random address generator, etc.
![State-image: or](/files/image/or.jpg)
Please check ZIP Codes by City Name:
Please check ZIP Codes by County FIPS:
How to write a U.S. envelope?
![img_envelope](https://zip.postcodebase.com/files/image/img_envelope.png)
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First, you need to fill in the recipient's mailing information in the center of the envelope. The first line is the recipient's name, the second line is the street address with a detailed house number, and the last line is the city, state abbr, and ZIP Code.
Second, write the sender's information on the left top corner of the envelope. If your mail cannot be delivered, it will return to the sender's address.
Finally, don't forget to stick the stamp on the right top corner. Otherwise, the letter will not go into the delivery process.
Here is the envelope example below.
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For more explanation, please read the official document: USA.pdf (English)
Population
![img_population](https://zip.postcodebase.com/files/image/img_population.png)
The population of the state Oregon was 3,831,074 in 2010 and reached 4,217,737 in 2019 with an increase of +386,663. Now the state Oregon is the 27th state by population size in the U.S. and accounts for 1.27% of the total U.S. population.
Area | 2019 Census Data | 2010 Census Data | Increase | Increase(%) | Rank | Proportion of total population(%) |
---|---|---|---|---|---|---|
Oregon | 4,217,737 | 3,831,074 | +386,663 | 10.1% | 27th | 1.27% |