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The Commemorative Quarter for Washington





Welcome to Cosmopolis ...

The city of Cosmopolis is located on the Olympic Peninsula.

Cosmopolis is located in Grays Harbor County<1>.



Google driving directions from your current location to Cosmopolis (Patience, this may take a moment).


While we don't have a date for the founding of Cosmopolis, you might consider that their post office opened  in 1863.

From the  Census Estimates for 2019, Cosmopolis has a population of 1,658 people<2> (see below for details).

The community of Cosmopolis is near sea level<3>.

Time Zone: Cosmopolis lies in the Pacific Time Zone (PST/PDT) and observes daylight saving time

Area Codes for Cosmopolis: 360 & 564<4>

The ZIP code for Cosmopolis: 98537<5>

Population Details ...

Taken from the 2019 Census Estimates, Cosmopolis had an population of 1,658 people. This is an increase of 0.55% since the 2010 Census (or an increase of 3.95% since the 2000 Census).

At the time of the 2010 Census, Cosmopolis had a population of 1,649 people. This makes Cosmopolis the county's 8th most populous community.

The population of Cosmopolis represents 0.02% of the total population of Washington (which has 6,724,540 people), making it the state's 174th most populous community.

With a 2010 count of 1,649 people, the population of Cosmopolis increased 3.39% from the 2000 Census (with a count of 1,595 people).

More information can be found on the Census Page for Cosmopolis.

Websites for Cosmopolis ...

Chamber of Commerce:   www.graysharbor.org/

Although we don't have any websites that are specific to Cosmopolis, the following might be of interest:

Communities near Cosmopolis ...

We have created a list of 10 communities that are near Cosmopolis.

To Help With Your Genealogy Research ...

We have a couple of sections for those tracing their genealogy.

We created a list of cemeteries that are in the area around Cosmopolis. Our list includes the location of those cemeteries and we provide an overhead view. See our Cemetery List for Cosmopolis.

Using the information from an 1895 Atlas, we've created a list of communities that were in the area of Cosmopolis. Our list includes information such as whether the 1895 community had a post office or railroad service. See our List of 1890's Communities around Cosmopolis.

We also have a detailed list of newspapers that have been published in the area around Cosmopolis. See our Newspapers Page for Cosmopolis.

TripAdvisor Tourism Pages for Cosmopolis ...

Looking for more information about Cosmopolis? A wonderful source is the TripAdvisor website. We always start with the TripAdvisor Tourism page, where you can read an overview with links that will help you find lodging, restaurants and attractions.

In addition to the Tourism page for Cosmopolis, there are neighboring communities that also have Tourism pages. More information about those communities can be found on our TripAdvisor Page for Cosmopolis.

Adding Cosmopolis to Our Gazetteer ...

We originally found mention of Cosmopolis in both the FIPS-55 and the GNIS. For more information, see the FIPS and GNIS Codes sections on our Miscellaneous Page.

From our notes, the earliest published mention we've found for Cosmopolis was in the document titled List of Post Offices from Cameron Blevins and Richard Helbock.<9>

From that list, the Cosmopolis post office opened in 1863.

We also found Cosmopolis in the book titled Business Atlas and Shippers' Guide (1895).

For more details, see References and Mentions for Cosmopolis.

Unfortunately, we don't know of a website for Cosmopolis. If you can help, please contact us through our Feedback Page.

The official website for Grays Harbor County: www.co.grays-harbor.wa.us/

The official website for State of Washington: https://wa.gov/

Footnotes ...

<1>If you're interested in how the shape of Washington's counties, including Grays Harbor, have changed over time, we recommend the Atlas of Historical County Boundaries.
<2>Population counts have been provided by the U.S. Census Bureau. For more detail, please visit our Census Page for Cosmopolis.
<3>The elevation is an estimate for the area around Cosmopolis - it will be higher in some places and lower in others.
<4>When there's a risk of an area code running out of phone numbers, an 'Overlay Area Code' is created that has the same geographic boundaries as the existing area code. In this case, the 360 code has been Overlayed with the 564 area code. New phone numbers in the Cosmopolis area will be assigned with one of these codes: 360 or 564. As a result, placing a call in the Cosmopolis area will require 10-digit dialing (where you enter both the area code and then the phone number).
<5>ZIP Codes have been created by the United States Postal Service (USPS) as a way of grouping addresses to make delivery more efficient. The boundaries of the ZIP Code can be changed, re-assigned, eliminated or overlapped with other ZIP Codes. So keep in mind that any given ZIP Code is only 'loosely' associated with a city (such as Cosmopolis). When looking for a ZIP Code, whether Cosmopolis or elsewhere, it's always best to check the website of the United States Postal Service (USPS).
<6>While we're fans and frequent users of TripAdvisor, you should know that we're also members of the TripAdvisor affiliate program.
<7>The location has been supplied by the Geographic Names Information System - which is maintained by the U.S. Geological Survey (USGS). While these values should be definitive, we found that accuracy can vary and you should double-check the location if accuracy is required.
<8>An 'estimated' location is one where we have been given GPS coordinates, but are unable to verify the accuracy of those coordinates. That said, we have some confidence that we have placed the marker near the actual location. A typical reason for being unable to verify a location is that it might be on private property or maybe historic and gone without an obvious trace.
<9>A copy of their list with background information can be found at:

      https://cblevins.github.io/us-post-offices/data-biography/




 

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This page was last modified/updated: 20 Feb 2025