A Gazetteer for the United States and Canada

Ilwaco, Washington

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Welcome to Ilwaco ...

The coastal city of Ilwaco is located on the Oregon border (on the Columbia River).

Ilwaco is located in Pacific County<1>.

The pronunciation of Ilwaco: il-WAH-koh<2>

From the  Census Estimates for 2019, Ilwaco has a population of 986 people<3> (see below for details).

We don't have a date for the establishment of Ilwaco.

The community of Ilwaco is near sea level<4>.

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

Ilwaco is located in the (360) area code.

The ZIP code for Ilwaco: 98624<5>

Websites for Ilwaco ...

Official Website:

Population Details ...

Taken from the 2019 Census Estimates, Ilwaco had an population of 986 people. This is an increase of 5.34% since the 2010 Census (or an increase of 3.79% since the 2000 Census).

At the time of the 2010 Census, Ilwaco had a population of 936 people. This makes Ilwaco the county's 4th most populous community.

The population of Ilwaco represents 0.01% of the total population of Washington (which has 6,724,540 people), making it the state's 203rd most populous community.

With a 2010 count of 936 people, the population of Ilwaco decreased 1.47% from the 2000 Census (with a count of 950 people).

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

Communities near Ilwaco ...

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

  • Astoria [Clatsop County]
    • Jump to our Gazetteer entry for Astoria
    • Astoria [Clatsop County] lies 13 miles [20.9 km]<6> to the southeast of Ilwaco
    • Population from the 2020 Census: 10,029 people
    • Jump to Google Maps centered on Astoria
    • Jump to TripAdvisor's Tourism page for Astoria<7>
  • Warrenton [Clatsop County]
    • Jump to our Gazetteer entry for Warrenton
    • Warrenton [Clatsop County] lies 10 miles [16.1 km]<6> to the southeast of Ilwaco
    • Population from the 2020 Census: 5,739 people
    • Note: The GPS coordinates that we are using for Warrenton have been provided by the GNIS.<8> The coordinates still need to be verified.
    • Jump to Google Maps centered on Warrenton
    • Jump to TripAdvisor's Tourism page for Warrenton<7>
  • Hammond [Clatsop County]
    • Jump to our Gazetteer entry for Hammond
    • Hammond [Clatsop County] lies 8 miles [12.9 km]<6> to the southeast of Ilwaco
    • Note: The GPS coordinates that we are using for Hammond have been provided by the GNIS.<8> The coordinates still need to be verified.
    • Jump to Google Maps centered on Hammond
    • Jump to TripAdvisor's Tourism page for Hammond<7>
  • Breakers [Pacific County]
    • Jump to our Gazetteer entry for Breakers
    • Breakers [Pacific County] lies 4 miles [6.4 km]<6> to the north of Ilwaco
    • Jump to Google Maps centered on Breakers
  • Continue List   (6 more) ...
    • Chinook [Pacific County]
    • Megler [Pacific County]
      • Jump to our Gazetteer entry for Megler
      • Megler [Pacific County] lies 9 miles [14.5 km]<6> to the east of Ilwaco
      • Jump to Google Maps centered on Megler
    • Naselle [Pacific County]
    • Ocean Park [Pacific County]
    • Jeffers Garden [Clatsop County]
      • Jump to our Gazetteer entry for Jeffers Garden
      • Jeffers Garden [Clatsop County] lies 13 miles [20.9 km]<6> to the southeast of Ilwaco
      • Jump to Google Maps centered on Jeffers Garden
    • Nahcotta [Pacific County]

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 Ilwaco. Our list includes the location of those cemeteries and we provide an overhead view. See our Cemetery List for Ilwaco.

Using the information from an 1895 Atlas, we've created a list of communities that were in the area of Ilwaco. 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 Ilwaco.

We also have a detailed list of newspapers that have been published in the area around Ilwaco. Our list includes 6 papers. See our Newspapers Page for Ilwaco.

TripAdvisor Tourism Pages for Ilwaco ...

Looking for more information about Ilwaco? 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 Ilwaco, there are neighboring communities that also have Tourism pages. More information about those communities can be found on our TripAdvisor Page for Ilwaco.

Adding Ilwaco to Our Gazetteer ...

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

In addition, our notes show that the earliest dated mention that we've found for Ilwaco was in the Business Atlas and Shippers' Guide (1895).

For more details about the above, see References and Mentions for Ilwaco on our Genealogy Page.

Other Roadside Stops ...

Search for a Community in Washington

About Pacific County

About Washington

Off-the-Road Links ...

The official website for Ilwaco:

The official website for Pacific County:

The official website for State of Washington:

Footnotes ...

<1>If you're interested in how the shape of Washington's counties, including Pacific, have changed over time, we recommend the Atlas of Historical County Boundaries.
<2>The pronunciation we've provided is our attempt to give a phonetic pronunciation for Ilwaco. While it might not be exactly right, hopefully it will be close. If we have it wrong or there's a better way to pronounce the name, please contact us through our Feedback Page.
<3>Population counts have been provided by the U.S. Census Bureau. For more detail, please visit our Census Page for Ilwaco.
<4>The elevation is an estimate for the area around Ilwaco - it will be higher in some places and lower in others.
<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 Ilwaco). When looking for a ZIP Code, whether Ilwaco or elsewhere, it's always best to check the website of the United States Postal Service (USPS).
<6>Our distances are not driving distances, but are calculated as a 'straight-line' distance. A straight line distance ignores obstructions like rivers, canyons, lakes, et cetera - it's truly a line from Point A (ie- Ilwaco) to Point B.If you need the driving distance, we recommend that you use one of the Mapping Services listed on our Map Page for Ilwaco. Since we usually use Google Maps for our own planning, we've provided the following link: Google Map and Driving Directions starting from IlwacoOur distance measurements begin at a specific point in Ilwaco. The point we use is located at these GPS coordinates - Latitude: 46.3089, Longitude: -124.0390    
<7>While we're fans and frequent users of TripAdvisor, you should know that we're also members of the TripAdvisor affiliate program.
<8>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 have found that accuracy can vary and you should double-check the location if accuracy is required.






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This page was last modified: 27 Apr 2022