Wahkiakum County, Washington
Wahkiakum County: county in the state of Washington, United States
About
Wahkiakum County is a county located in the U.S. state of Washington. As of the 2010 census, the population was 3,978 and a population density of 5 people per km². After 10 years in 2020 county had an estimated population of 4,498 inhabitants. Its county seat is Cathlamet. The county was created 172 years ago in 1853.
County Snapshot
Wahkiakum County at a glance
Wahkiakum County currently has 1 quality-checked populated place pages linked on MapSof, making it easier to jump from the county overview into local city pages.
Mapped populated places
1
These counts use a stricter populated-place filter so the main lists stay focused on real city and town pages.
Washington counties
39
Open related pagesLargest city
CathlametPopulation 541
Top linked places
Quick Facts about Wahkiakum County
| Population | 4,498 (2020) |
| Country | United States of America |
| State | Washington (United States) |
| Area | 743 km2 |
| Water as percent of area | 8.3% |
| Land as percent of area | 91.7% |
| Latitude & Longitude | 46.2913,-123.4332 |
| Named for | Wahkiakum |
| Altitude | 223 feet / 68 meters |
| Capital | Cathlamet |
| Establishment | January 01, 1854 |
| Time Zone | America/Los_Angeles |
| Local time | 02:02:27 (17th April 2026) |
| Density | 6 Pop. per km² as of 2020 |
| Population growth | 11.56% (2010-2020) |
Geography
Wahkiakum County is located at 46°17'29"N 123°25'59"W (46.2912500, -123.4331600). It has 5 neighbors: Columbia County, Clatsop County, Cowlitz County, Lewis County and Pacific County.
Wahkiakum County map
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The largest city of Wahkiakum County is Cathlamet with a population of 541. . See all Wahkiakum County cities & populated places.
Wahkiakum County Populated Places
Cities, towns, neighborhoods & other populated places in Wahkiakum County.
| City Name | Population | Title |
|---|---|---|
| Cathlamet | 541 | Town in Washington, United States |
Official website of Wahkiakum County
Official Website- Cathlamet
Demographics
The population of Wahkiakum County increased by 11.56% in 10 years.
| Year | Population | % Change | Method |
|---|---|---|---|
| 2010 | 3,978 | - | census |
| 2011 | 3,992 | 0.35% | estimation process |
| 2012 | 4,000 | 0.2% | estimation process |
| 2013 | 4,034 | 0.84% | estimation process |
| 2014 | 4,043 | 0.22% | estimation process |
| 2015 | 4,023 | -0.5% | estimation process |
| 2016 | 4,161 | 3.32% | estimation process |
| 2017 | 4,251 | 2.12% | estimation process |
| 2018 | 4,415 | 3.71% | estimation process |
| 2019 | 4,488 | 1.63% | estimation process |
| 2020 | 4,498 | 0.22% | estimation process |
Washington Other Counties (more counties)
| County Name | Population | Title |
|---|---|---|
| King County | 2,274,315 | County in the state of Washington, United States |
| Pierce County | 913,890 | County in the state of Washington, United States |
| Snohomish County | 830,393 | County in the state of Washington, United States |
| Seattle | 769,714 | The eighteenth most populous city in the United States and the center of the Seattle metropolitan area. |
| Spokane County | 528,225 | County in the state of Washington, United States |
| Clark County | 496,865 | County in Washington, United States |
| Thurston County | 294,074 | County in the state of Washington, United States |
| Kitsap County | 272,787 | County in the state of Washington, United States |
| Yakima County | 251,879 | County in the state of Washington, United States |
| Whatcom County | 231,016 | County in the state of Washington, United States |
| Spokane | 222,050 | The second most populous city in Washington. |
| Tacoma | 219,945 | The third most populous city in Washington. |
| Benton County | 206,426 | County in Arkansas, United States |
| Vancouver | 186,192 | The third most populous city in Washington. |
| Bellevue | 148,073 | The most populous city in Washington. |
| Skagit County | 130,789 | County in the state of Washington, United States |